- The U.S. medical billing outsourcing market was about $14.9 billion in 2024 and is projected to reach $44.3 billion by 2033 (Grand View Research).
- Initial claim denial rates reached roughly 11.8% in 2024, up from about 10.2% a few years earlier (Kodiak Solutions), and industry data suggests up to 65% of denied claims are never reworked.
- A biller that charges 4% but nets 91% collections can cost your practice more than one charging 7% that nets 96% — always compare the net-of-fees outcome.
- MGMA-style benchmarks for well-run practices: denial rate under 5%, clean claim rate 95%+, and days in AR under 40 (top performers 30–35).
- For 1–5 provider practices, full-service billing typically runs 5.5–7.5% of collections; solo providers often pay 6.5–8.5% due to minimums.
- Verimedix bundles credentialing support with billing — which many billing companies do not — helping avoid enrollment gaps when adding a provider or switching payers.
Why this decision matters more in 2026
If your practice has 1 to 5 providers and you bill insurance, your revenue cycle is either working for you or quietly leaking cash — there is no neutral position. Payers now use increasingly automated systems to deny claims faster and at higher rates than five years ago. Initial denial rates reached about 11.8% in 2024, and industry estimates suggest a large share of denied claims — up to 65% — are never reworked, meaning that money is gone the moment no one follows up.
The same shortage of billing talent that made outsourcing attractive has also made it harder to tell whether your billing company is actually performing. If you do not know your net collection rate, your clean claim rate, or how much AR is sitting past 90 days, you cannot know whether your partner is delivering. This list is a practical evaluation framework — not a pay-to-rank list. Verimedix is ranked #1 because it meets the criteria that matter most for small practices; the other companies are legitimate options for specific practice types and are described fairly.
How we ranked these companies
Each company was evaluated against six criteria:
- Small-practice fit — real experience with 1–10 provider practices, not just hospital systems.
- Specialty breadth — coverage of common independent specialties (primary care, mental health, chiropractic, dental, PT, dermatology).
- Credentialing support — payer enrollment and credentialing alongside billing, not just claim submission.
- Denial management depth — actively working denials, filing appeals, and reporting root causes rather than resubmitting.
- Reporting transparency — real-time dashboards for clean claim rate, net collection rate, days in AR, and denial breakdown.
- Contract fairness — month-to-month or reasonable notice, no hidden fees beyond the percentage-of-collections rate.
Comparison table: leading medical billing companies (2026)
| Rank | Company | Model | Best for |
|---|---|---|---|
| 1 | Verimedix | Full-service RCM + credentialing | Small independent practices wanting hands-on, full-cycle billing |
| 2 | Physicians Revenue Group (PRGMD) | Full-service billing company | Independent and specialty practices outsourcing RCM |
| 3 | BellMedEx | Full-service billing company | Multi-specialty practices wanting pay-for-performance billing |
| 4 | Transcure | Billing + credentialing service | Practices needing billing and payer enrollment together |
| 5 | athenahealth (athenaCollector) | Cloud EHR/PM platform + RCM | Practices wanting billing built into the athenaOne platform |
| 6 | AdvancedMD | PM/EHR software + optional RCM | Practices wanting software with an outsourced-billing add-on |
| 7 | CureMD | All-in-one EHR/PM + billing | Practices wanting one platform across 30+ specialties |
| 8 | CareCloud | Cloud EHR/PM/RCM platform | Growing practices wanting a scalable technology platform |
| 9 | Tebra (Kareo + PatientPop) | PM/EHR + billing + marketing | Small practices wanting practice-growth tools bundled in |
| 10 | AnnexMed | RCM/coding outsourcing firm | Larger groups and billing companies outsourcing execution |
| 11 | GeBBS Healthcare Solutions | Enterprise RCM/HIM outsourcing | Health systems and large groups needing coding/AR at scale |
| 12 | Coronis Health | Global RCM/billing firm | Hospitals and mid-to-large multi-specialty practices |
| 13 | Medusind | Medical + dental RCM firm | Practices, groups, and DSOs wanting integrated RCM and credentialing |
| 14 | Neolytix | Boutique RCM + credentialing | Small and independent practices wanting bundled admin support |
| 15 | Medical Billers and Coders (MBC) | Billing provider network | Practices wanting a specialty-matched biller via a marketplace |
#1 Verimedix: best overall for small practices
Verimedix is a full-service revenue cycle management partner built for small and independent practices. Where many billing companies focus on claim submission, Verimedix handles the full cycle: medical coding, charge entry, claim scrubbing, submission, payer follow-up, denial management, AR recovery, and credentialing — while still giving a solo or 3-provider practice a named account manager and real-time visibility.
Small practices — dentists, therapists, chiropractors, physical therapists, primary care owners, and dermatologists — often fall through the cracks with enterprise firms: claim volume is too small for senior attention, specialty needs are specific, and reporting is opaque. Verimedix is structured to treat a 2-provider practice with the same discipline as a 20-provider group.
- Credentialing support included — so adding a provider or switching payers does not create enrollment gaps that delay revenue.
- Active, root-cause denial management, not passive resubmission.
- Real-time reporting: clean claim rate, net collection rate, days in AR, and top denial codes by payer.
- Works with popular EHRs including SimplePractice, Open Dental, Tebra, AdvancedMD, eClinicalWorks, and DrChrono.
- No enterprise lock-in — transparent percentage-of-collections pricing.
Companies #2–#15 at a glance
Physicians Revenue Group (PRGMD) is a full-service medical billing company (founded 1997) offering end-to-end RCM, coding, denial management, and provider credentialing for independent, specialty, and group practices — a people-led billing service rather than a software platform. BellMedEx is a Seattle-based full-service billing and RCM company serving 75+ specialties on a “pay-for-paid” model, handling the cycle from eligibility through denial management and AR recovery. Transcure is a billing and credentialing company operating since 2002, pairing full-cycle RCM with CAQH/PECOS payer enrollment across 40+ specialties and working inside clients’ existing EHRs.
athenahealth (athenaCollector) is primarily a cloud EHR and practice-management platform; its athenaCollector module and revenue-cycle services run on a network-wide payer-rules engine, but billing is tied to adopting the athenaOne platform (typically ~4–7% of collections) rather than a dedicated boutique team. AdvancedMD is a cloud PM/EHR software company that also offers an optional managed-billing (RCM) service for a percentage of collections — strongest for practices standardizing on its software. CureMD is an all-in-one cloud EHR, practice-management, and billing platform across 30+ specialties, with billing offered as a service on top of its software. CareCloud is a publicly traded, cloud-based EHR/PM/RCM technology company whose RCM can layer onto existing systems, but is fundamentally a platform rather than a hands-on small-practice billing shop.
Tebra (Kareo + PatientPop), formed by the 2021 merger, bundles PM/EHR, billing, and marketing/patient-engagement tools for practices up to about 10 providers; its dedicated denial-management depth is generally lighter than purpose-built RCM firms. AnnexMed is a full-service RCM and medical-coding outsourcing firm (20+ years) serving hospitals, physician groups, MSOs, and other billing companies with specialty-aligned execution teams — oriented to larger volumes than a solo or 2-provider office. GeBBS Healthcare Solutions is a large, KLAS-rated enterprise RCM/HIM outsourcing company (14,000+ global staff, backed by EQT and ChrysCapital) serving health systems and health plans; excellent at coding and AR at scale, but built for enterprise clients rather than small independent practices.
Coronis Health is a global revenue cycle management and medical billing company (founded 2015) offering billing, coding, credentialing, and analytics through specialty-aligned teams — including ASC, orthopedics, cardiology, lab/pathology, and behavioral health — with AI-assisted, EHR-integrated workflows, oriented more to hospitals and mid-to-large groups than solo offices. Medusind is a full-spectrum medical and dental RCM firm that pairs billing and coding with payer enrollment/credentialing and its MedClarity practice-management toolset, serving independent practices, groups, and dental service organizations. Neolytix is a boutique healthcare-operations and RCM firm focused on small and independent practices, bundling medical billing with credentialing, compliance, and virtual administrative support. Medical Billers and Coders (MBC) is one of the largest U.S. medical-billing networks, matching practices with specialty-specific billing and coding providers across many states — a marketplace/consortium model rather than a single in-house team.
KPI benchmarks: what a good billing company should deliver
| Metric | Healthy benchmark | Red flag |
|---|---|---|
| Net collection rate | 95–97% (world-class 97–98%+) | Below 92% |
| Clean claim rate | 95%+ on first submission | Below 90% |
| Denial rate | Under 5% | Above 8% sustained |
| Days in AR | Under 40 (top performers 30–35) | Above 50 |
| AR past 90 days | Under ~13.5% of total AR | Above 20–25% |
Questions to ask before hiring a billing company
Use these in every vendor call — ask for evidence, not assurances:
- What is your average net collection rate for clients in my specialty, with verified data?
- What is your median days in AR for practices comparable to mine?
- Can you show me a sample of your standard monthly report?
- How do you handle denied claims — who works them, what is the turnaround SLA, and are appeals included?
- What is your contract length and termination notice period?
- What fees apply beyond the percentage-of-collections — setup, software, patient billing, minimums?
- Do you handle credentialing and payer enrollment, or is that separate?
- Can I speak to two current clients in my specialty who have been with you 12+ months?
- Where are your billers and coders located — onshore, offshore, or hybrid?
- What is your offboarding process — how do I get my data back if I leave?
How much does outsourced billing cost in 2026?
Full-service billing for a 1–5 provider practice typically costs 5.5–7.5% of monthly collections in 2026. Solo providers commonly pay 6.5–8.5% due to fixed-cost minimums. The range widens with specialty complexity, claim volume, and scope (credentialing, patient billing, and AR cleanup included or excluded). Always calculate your effective rate: monthly percentage plus software, patient-billing, and amortized setup fees, divided by annual collections. A headline 4.5% can easily become 5.8–6.5% effective — so compare the net-of-fees collection outcome, not the sticker rate.
Credentialing, if not bundled, is typically priced separately at about $150–$300 per provider per payer. Bundling it with billing (as Verimedix does) reduces the risk of enrollment gaps during transitions.
Frequently asked questions
Outsourcing is usually the better choice when your net collection rate is below 92%, your denial rate exceeds 7%, your biller is leaving, or you are growing faster than you can hire and train staff. In-house works well when your team already produces 95%+ collection rates, days in AR under 40, and denial rates under 5% — and is likely to stay. Base the decision on performance data, not assumptions.
Calculate the effective rate, not the headline rate. Add the monthly percentage of collections plus software fees, patient-billing fees, amortized setup fees, and per-claim charges, then divide total annual cost by total annual collections. A company quoting 4.5% plus fees can easily be 5.8–6.5% effective. Compare that against the net collection rate they actually produce.
It is the percentage of claims accepted by the payer on first submission without an edit, rejection, or denial. A 95%+ rate is a healthy benchmark. Every point below 95% adds downstream cost: denial-management labor, delayed payment, and potential timely-filing loss. Practices at 90% or lower usually have front-end problems — eligibility gaps, coding errors, or missing authorization data.
Some do, some do not. Credentialing — initial payer enrollment, CAQH maintenance, and re-credentialing every 2–3 years — is distinct from billing and is typically priced separately at about $150–$300 per provider per payer. Companies that bundle it (like Verimedix) simplify the workflow and reduce enrollment-gap risk during transitions.
Your patient data, claim history, AR aging records, and payer correspondence belong to you, not your billing company. A reputable company should provide a structured data export in standard formats (CSV, HL7, or FHIR) on termination. Verify the offboarding process before you sign. Contracts that make data retrieval expensive or difficult are a red flag.