Top 20 Medical Billing Companies in the US

The US medical billing outsourcing market was valued at roughly 6.95 billion dollars in 2025 and is projected to climb past 17 billion dollars by 2033. That growth reflects a simple reality inside American healthcare: claims processing has become too complex, too payer-specific, and too compliance-heavy for most practices to manage entirely in-house without either specialized software, specialized staff, or both.

More than 1,300 medical billing companies now operate across the country, ranging from all-in-one cloud platforms that bundle billing into an EHR subscription to dedicated outsourcing firms that handle claims submission, coding, and denial management as a full-service package. Choosing between them depends heavily on practice size, specialty mix, and whether the priority is software control or hands-off outsourcing.

Comparison Table of Top Medical Billing Companies

In-Depth Profiles of Leading Medical Billing Companies

Athenahealth

Athenahealth has grown into one of the largest cloud-based healthcare technology providers in the country, built around its athenaOne platform that connects thousands of providers on a shared network. The company’s revenue cycle management offering covers medical claim processing, patient billing, medical coding, insurance verification, billing customization, and denial management within a single integrated system.

Notable clients include federally qualified health centers, medical groups, behavioral health providers, hospitals, and ambulatory surgery centers, reflecting the platform’s ability to scale across very different organizational sizes and complexity levels. Athenahealth’s shared network model means claim rules and payer behavior data collected across its entire client base can inform how the system flags potential denials before submission.

The company is particularly strong at population health reporting, giving large multi-specialty groups and corporate healthcare facilities the network-level data needed to track trends across thousands of patients. Practices interested in Athenahealth typically need to schedule a demo with a company representative, since detailed pricing is not published and tends to be customized by group size and specialty mix.

Kareo (Tebra)

Kareo launched in 2004 and built its reputation on simplifying healthcare management for smaller, independent medical practices. The platform bundles billing and collections, insurance verification, and patient billing into a single cloud-based system, with automated billing workflows and real-time analytics designed to reduce administrative burden without requiring a large in-house billing department.

Following its merger into the Tebra brand, the platform expanded its scope to include broader practice growth and patient engagement tools alongside its original billing and practice management core. That evolution reflects a broader trend among billing-focused software companies moving toward all-in-one platforms that combine financial operations with patient acquisition and retention features.

Kareo’s user-friendly interface remains its strongest selling point for solo practitioners and small group practices that do not have dedicated billing staff. The subscription-plus-billing-fee pricing structure gives smaller practices more predictable monthly costs than a pure percentage-of-collections model, though it requires more staff involvement than a fully outsourced service.

CareCloud

CareCloud positions itself around automation and analytics, streamlining the charge-processing workflow to reduce claim rejections and improve transparency across the revenue cycle. The platform includes instant tracking dashboards, coverage confirmation, denial resolution tools, and detailed reporting that allow practices to monitor billing performance without waiting for monthly summaries.

The system scales from small independent practices up through larger multi-provider groups, with billing and practice management functionality integrated into a single platform rather than requiring separate software for each function. CareCloud does not currently offer a free trial, and practices generally need time to adjust internal processes to align with the platform’s automated workflows for the best results.

Real-time revenue cycle management, automated claim detection and cleaning, and live analytics dashboards make CareCloud a strong fit for practices that want to actively monitor their own billing performance rather than relying entirely on a third-party outsourcing relationship. The tradeoff is a steeper initial learning curve compared to simpler, more hands-off billing services.

AdvancedMD

AdvancedMD has operated since 1999 and has grown into a comprehensive suite covering electronic health records, billing, and telehealth within a single subscription-based platform. The integration between clinical documentation and billing workflows is designed to reduce the data entry duplication that often causes claim errors when EHR and billing systems operate separately.

The platform’s telehealth integration has become increasingly relevant as more practices maintain hybrid in-person and virtual care models. Billing for virtual visits follows different payer rules than in-person encounters in many states, and having that logic built into the same system that manages in-person billing reduces the risk of misapplied codes.

AdvancedMD is generally positioned as a strong option for multi-specialty practices that want a single vendor managing clinical, billing, and telehealth operations rather than juggling separate contracts. Subscription-based pricing gives practices predictable monthly costs, though larger organizations may still prefer add-on services for coding audits or denial management support.

DrChrono

DrChrono built its reputation around a mobile-first design, allowing providers to manage clinical documentation and billing tasks directly from tablets and smartphones rather than being tied to a desktop workstation. The platform’s billing services extend into revenue cycle management, EMR integration, accounts receivable services, and medical credentialing support.

That credentialing add-on distinguishes DrChrono from billing-only competitors, since practices onboarding new providers often need credentialing handled in parallel with claims submission setup. Having both functions inside the same platform reduces the coordination overhead between separate credentialing and billing vendors.

The company’s mobile-first architecture appeals particularly to practices with providers who split time across multiple locations or who want to complete documentation and billing tasks between patient visits rather than batching everything at the end of the day. Subscription pricing with add-on modules allows practices to scale features as their billing needs grow more complex.

Invensis

Invensis grew from a two-employee medical billing company founded in 2000 into an organization employing more than 5,000 people, making it one of the larger outsourced billing providers profiled in this comparison. The company uses established billing software platforms such as DrChrono and Kareo to manage client billing, aiming for faster reimbursements and fewer claim errors through experienced staff working inside familiar systems.

Rather than building a proprietary billing platform, Invensis positions itself as a staffing and process outsourcing specialist that plugs into whatever system a practice already uses. This approach can reduce transition friction for practices that do not want to migrate to new software just to access outsourced billing support.

The company’s scale allows it to serve diverse healthcare providers across many specialties simultaneously, and its long operating history gives it substantial experience navigating changing payer rules and compliance requirements. Practices considering Invensis should request a detailed breakdown of service scope, since the company’s offerings span far beyond core billing into broader healthcare business process outsourcing.

Medical Billers and Coders (MBC)

Medical Billers and Coders has operated for more than 25 years and has built its business around dedicated revenue cycle infrastructure organized by specialty rather than applying a single generalist workflow across all clients. The company maintains Centers of Excellence spanning more than 40 medical specialties, ranging from wound care and orthopedics to anesthesia, gastroenterology, pain management, and behavioral health.

This specialty-specific structure is positioned as the company’s core differentiator against generic RCM vendors, since coding accuracy and denial patterns vary significantly between specialties. A wound care claim and an anesthesia claim face entirely different payer scrutiny, and MBC’s model assigns staff who work exclusively within a given specialty rather than rotating across all of them.

The company’s long track record and specialty depth make it particularly well suited to high-complexity enterprise physician groups managing multiple specialties under one organizational umbrella. Smaller single-specialty practices may find the depth of MBC’s infrastructure more robust than what their volume actually requires, making it a better fit for scale than for the smallest independent practices.

CureMD

CureMD has operated for more than 25 years and has built its billing service around AI-enhanced claim scrubbing designed to catch errors before submission rather than correcting them after a denial. The company reports helping practices get paid up to 35 percent faster while reducing denial rates by approximately 6 percent through this proactive claim review process.

Appeals management and detailed reporting round out CureMD’s core billing services, giving practices visibility into denial reasons and the appeals process when claims are rejected despite pre-submission scrubbing. The platform also includes MIPS support and compliance tools designed to keep providers aligned with evolving quality reporting standards.

CureMD’s combination of speed-focused automation and compliance tooling makes it a reasonable fit for practices that want measurable performance improvements alongside their billing service, rather than a purely administrative outsourcing arrangement. The company’s long operating history adds credibility for practices evaluating vendor stability before committing to a multi-year billing relationship.

R1 RCM

R1 RCM operates as one of the largest pure-play revenue cycle management providers in the United States, focused specifically on hospitals, health systems, and large physician groups rather than solo practices. The company’s scale allows it to take on end-to-end revenue cycle operations for entire hospital systems, a scope well beyond what most billing companies on this list handle.

Enterprise contracts with R1 RCM typically involve deep integration into a health system’s existing technology stack and staffing model, sometimes including on-site personnel alongside remote billing operations. This hybrid approach distinguishes R1 RCM from purely remote outsourcing firms serving smaller practices.

Because R1 RCM’s business model centers on large-scale enterprise engagements, it is generally not the right fit for solo practitioners or small group practices seeking straightforward outsourced billing. Hospital systems and large multi-location physician groups evaluating a full revenue cycle overhaul are the clearest match for R1 RCM’s scale and capabilities.

Omega Healthcare

Omega Healthcare has operated since 2003 as an outsourced billing and coding operations provider serving both healthcare providers and payers, a dual focus that distinguishes it from companies working exclusively on the provider side of the revenue cycle. This payer-side experience can give Omega Healthcare staff added insight into how claims are evaluated on the receiving end.

The company’s services span the broader revenue cycle beyond core billing, including coding operations that support compliance and audit readiness for larger healthcare organizations. Omega Healthcare’s scale and dual-market experience position it closer to enterprise-level outsourcing than boutique billing services built around a handful of dedicated account managers.

Large provider groups and organizations with payer-adjacent operations are the clearest fit for Omega Healthcare’s combined provider and payer expertise. Custom pricing reflects the enterprise nature of most engagements, and smaller practices seeking simple, transparent monthly billing fees may find other companies on this list better matched to their scale.

MediBillMD

MediBillMD has built its position among smaller, US-based full-service medical billing providers by focusing on personalized service for independent and small to mid-sized practices. The company’s offerings cover the core billing functions most practices need, including claims submission, coding support, and collections management.

Positioning itself against larger enterprise-focused competitors, MediBillMD emphasizes accessibility for practices that do not have the volume or complexity to justify an enterprise-scale RCM contract. This makes the company a frequently recommended option in comparison guides aimed specifically at solo and small group practices.

Percentage-of-collections pricing aligns MediBillMD’s incentives with practice revenue growth, a structure common across smaller full-service billing companies that compete primarily on service quality and responsiveness rather than proprietary technology. Practices should confirm the exact percentage and any additional fees during the vendor evaluation process, since these details vary by contract.

Revele

Revele, established in 2008, positions its core value around charge entry accuracy, coding audits, and accounts receivable management rather than marketing itself as a full technology platform. The company’s stated focus on reducing claim denials through detailed coding review reflects a service model built around catching errors that automated systems alone sometimes miss.

Personalized solutions tailored to each practice’s specific needs are central to how Revele positions its service against larger, more standardized billing platforms. This approach tends to appeal to practices that have had negative experiences with impersonal, high-volume billing vendors and want closer collaboration on their revenue cycle strategy.

Coding audit services in particular set Revele apart from companies that treat coding as a background process rather than a distinct, auditable function. Practices with a history of coding-related denials or compliance concerns may find Revele’s audit-first approach particularly valuable during a billing vendor transition.

Outsource Strategies International (OSI)

Outsource Strategies International provides professional medical billing outsourcing built around payer-specific knowledge, meaning the company’s staff understand individual payer rules closely enough to avoid many of the denials that generic claim submission processes generate. Specialty coverage spans internal medicine, cardiology, dentistry, and other common outpatient specialties.

OSI positions itself specifically for practices needing experienced billing help within a tighter budget, distinguishing it from enterprise-scale competitors whose pricing structures assume larger claim volumes. The company recommends practices request a full fee breakdown before comparing it against other vendors, since headline rates can be misleading when hidden fees are factored in.

Small practices operating with a tighter budget, no internal billing department, and cash flow that cannot absorb a lengthy vendor transition gap are OSI’s clearest target market. This focus on smaller-scale, budget-conscious practices differentiates OSI from the larger enterprise RCM providers also profiled in this comparison.

Practolytics

Practolytics combines full-service revenue cycle management with broader practice management consulting, giving practices access to both billing execution and higher-level operational guidance under one vendor relationship. This combined approach can be valuable for practices undergoing broader operational changes alongside a billing vendor transition.

The company’s multi-specialty focus allows it to serve a range of practice types without the narrower specialty concentration seen in companies like Medical Billers and Coders. Percentage-of-collections pricing ties Practolytics’ revenue directly to practice performance, which the company uses as a selling point for aligned incentives.

Practices that want a billing partner capable of advising on broader operational and workflow questions, not just claims submission, are the clearest fit for Practolytics. The consulting layer adds value for practices in transition, though it may represent unnecessary scope for practices that simply need straightforward claims processing.

PureMD Group

PureMD Group delivers full-spectrum medical billing and revenue cycle management services tailored to both independent practices and larger healthcare organizations. The company emphasizes automation, clean claim submission, and proactive denial management as the core pillars of its approach to improving practice cash flow.

Scalability is a recurring theme in how PureMD Group positions itself, aiming to serve practices across a wide size range rather than specializing narrowly in either the smallest independent clinics or the largest enterprise health systems. This flexibility can appeal to growing practices that want a billing partner able to scale alongside them.

The combination of automation-driven claim submission and proactive denial prevention reflects a broader industry shift toward catching billing errors before they become denials rather than managing appeals after the fact. Practices evaluating PureMD Group should ask specifically how the company’s automation tools integrate with their existing EHR or practice management system.

Zee Medical Billing (ZMB)

Zee Medical Billing operates as a nationwide medical billing and revenue cycle management company, positioning its geographic reach as a key differentiator for practices with locations spanning multiple states. Nationwide coverage can simplify vendor management for multi-location practice groups that would otherwise need separate regional billing partners.

The company’s service scope covers the core functions expected of a full-service billing provider, including claims submission, coding support, and revenue cycle oversight across the practices it serves. Custom pricing reflects the variation in scope and volume across ZMB’s diverse client base.

Multi-location practice groups and healthcare organizations expanding into new states are the clearest fit for Zee Medical Billing’s nationwide model. Single-location independent practices may find more specialized or locally focused competitors better suited to their narrower geographic and specialty needs.

Transcure

Transcure positions itself as a tech-enabled billing, coding, and revenue cycle outsourcing provider, blending software-driven workflows with dedicated human staff managing the claims process. This hybrid model aims to combine the efficiency of automation with the judgment required for complex coding and appeals decisions.

The company serves a multi-specialty client base, adapting its billing and coding processes to the specific requirements of different practice types rather than applying a single standardized workflow across all clients. Percentage-of-collections pricing aligns Transcure’s incentives with practice revenue outcomes.

Practices seeking a middle ground between a purely software-based billing platform and a fully manual outsourcing service may find Transcure’s tech-enabled approach appealing. The blend of automation and human oversight is positioned as a way to reduce both claim errors and the staffing overhead of managing billing entirely in-house.

iRCM

iRCM offers comprehensive revenue cycle management services with a stated focus on accuracy and compliance throughout the billing process. The company’s positioning emphasizes precision in claims submission and coding as the primary lever for improving practice collections and reducing denial-related revenue loss.

As a full-service RCM provider, iRCM’s scope extends beyond simple claims submission into broader revenue cycle oversight, similar to other comprehensive providers profiled in this comparison. Custom pricing structures reflect the variation in service scope across different practice sizes and specialty types.

Practices prioritizing accuracy and compliance as their primary billing vendor selection criteria, rather than the lowest possible fee, are the clearest fit for iRCM’s positioning. The company’s emphasis on precision over pure volume differentiates it from higher-throughput, lower-touch billing operations.

DoctorPapers

DoctorPapers specializes in end-to-end medical billing and revenue cycle solutions tailored specifically for small to mid-sized practices. The company has built its reputation around personalized service and transparent reporting, aiming to reduce claim denials and accelerate collections without the complexity larger enterprise vendors sometimes introduce.

A user-friendly portal and a responsive support team are frequently cited as differentiators for DoctorPapers, particularly for practices that have struggled with slow communication or opaque reporting from previous billing vendors. That responsiveness matters most for smaller practices without dedicated billing staff to chase down status updates internally.

The company’s focus on smaller practice sizes makes it a practical choice for providers seeking efficiency without the operational complexity of enterprise-scale RCM platforms. DoctorPapers is generally positioned as an accessible entry point for independent practices transitioning from in-house billing to outsourced support for the first time.

Human Medical Billing

Human Medical Billing markets itself directly against larger corporate billing companies, emphasizing no long-term contracts and a more personal relationship for private practitioners and clinic owners. The company’s positioning explicitly targets practices that feel treated as just another account number by bigger, more impersonal vendors.

Contract flexibility is the company’s clearest differentiator, allowing practices to exit the relationship without being locked into multi-year agreements common among larger enterprise billing providers. This flexibility can matter significantly for smaller practices still evaluating whether outsourced billing is the right long-term fit for their operations.

Solo practitioners and independent clinic owners who prioritize responsiveness and contract flexibility over the scale and proprietary technology of larger platforms are the clearest match for Human Medical Billing. Percentage-of-collections pricing keeps the company’s incentives aligned with practice revenue performance.

Choosing the Right Medical Billing Partner

Practice size should be the starting filter for any medical billing company evaluation, since enterprise-focused providers like R1 RCM and Omega Healthcare are built around a scale that most independent practices will never reach. Matching vendor scale to practice scale prevents both the frustration of being underserved by a system built for solo practitioners and the cost inefficiency of paying for enterprise infrastructure a small clinic does not need.

Specialty depth matters more than most practices initially realize, since coding rules, payer scrutiny, and denial patterns vary significantly across medical specialties. A billing company with dedicated specialty expertise, such as a Medical Billers and Coders’ Centers of Excellence model, can meaningfully reduce denial rates compared to a generalist workflow applied uniformly across every client regardless of specialty.

Pricing structure deserves close scrutiny beyond the headline rate, since percentage-of-collections models, subscription fees, and hybrid pricing all shift financial risk differently between the practice and the billing company. Practices should request a full fee breakdown, confirmed contract terms, and references from similarly sized practices in the same specialty before finalizing any billing partnership.

FAQ

Q: How much do medical billing companies typically charge?

A: Most medical billing companies charge a percentage of collections, commonly ranging from 3 to 8 percent depending on specialty complexity and claim volume. Some companies use subscription-based pricing instead, particularly those bundling billing with a full EHR platform.

Q: What is the difference between billing software and a billing outsourcing company?

A: Billing software like Kareo or AdvancedMD gives practices tools to manage billing internally with staff support. Outsourcing companies like Invensis or MediBillMD take over the entire billing process using their own trained staff, reducing the practice’s internal administrative burden.

Q: Do medical billing companies handle medical coding as well?

A: Most full-service medical billing companies include coding support as part of their core service, since accurate coding is directly tied to claim acceptance rates. Some companies, like Medical Billers and Coders, organize their coding staff by specialty for added accuracy.

Q: How long does it take to switch medical billing companies?

A: Transition timelines vary but often take 30 to 90 days depending on data migration complexity and whether the practice is also switching underlying software. Practices with cash flow constraints should confirm the transition plan in detail before signing a new contract.

Q: Can small independent practices afford outsourced medical billing?

A: Yes, several companies on this list, including MediBillMD, DoctorPapers, and Human Medical Billing, specifically target small to mid-sized independent practices with accessible pricing and no long-term contract requirements.

Q: What is denial management and why does it matter?

A: Denial management refers to the process of identifying why a claim was rejected, correcting the issue, and resubmitting or appealing it. Strong denial management directly improves practice revenue by recovering payments that would otherwise be written off.

Q: Do medical billing companies offer credentialing services?

A: Some do. DrChrono, for example, bundles credentialing support alongside its billing platform, which can simplify onboarding for practices adding new providers.

Q: What is MIPS compliance and does it affect billing?

A: MIPS, the Merit-based Incentive Payment System, is a Medicare quality reporting program that can affect provider reimbursement rates. Billing companies like CureMD include MIPS compliance tools to help practices avoid payment adjustments tied to reporting failures.

Q: Are enterprise billing companies like R1 RCM relevant to small practices?

A: Generally not. Companies like R1 RCM and Omega Healthcare are built for hospitals and large physician groups, and their enterprise-scale infrastructure and contracts are usually a poor fit for solo or small group practices.

Q: What should a practice ask before signing with a medical billing company?

A: Practices should ask about the exact fee structure, contract length and exit terms, specialty-specific experience, denial rate performance, and how claim status and reporting are communicated. Requesting references from similarly sized practices in the same specialty is also strongly recommended.