Meta Description: Compare the top medical billing outsourcing companies for 2027: specialty coverage, HIPAA compliance, delivery models and pricing for US practices and clinics.
This list is for practice managers, physician owners and hospital revenue teams who want to hand claim creation, coding, payer follow-up and denial work to a specialist. Medical billing outsourcing is one of the most established corners of business process outsourcing, but the vendors vary widely in which specialties they know, where their staff sit and how they charge.
Several things changed going into 2027. Payers keep expanding prior authorization and automated claim edits, so denial prevention now matters as much as clean claim submission. Most medical billing companies have added AI-assisted coding and eligibility tools, and buyers are asking harder questions about who reviews that output. The industry has also consolidated, with private-equity-backed groups buying smaller billers, which makes it worth checking who actually owns the firm you are signing with.
This shortlist favors billing specialists that serve physician practices, clinics and specialty groups. If you run a hospital or health system and want a full revenue cycle partner with patient access, analytics and software, start with our list of revenue cycle management companies in the USA instead. For front-desk and non-billing administrative work, see our roundup of healthcare administration outsourcing companies.
Each firm below was checked on its own website for the services it offers, the specialties it covers, where it is headquartered and delivers from, and who owns it. Where a firm publishes its pricing model, such as a percentage of collections, we note it. Where it does not, assume pricing is quoted per engagement.
Medical Billing Outsourcing Companies At A Glance
Company
Headquarters
Best For
Core Services
Ventra Health
Dallas, Texas
Anesthesia, emergency medicine, radiology and hospitalist groups
Best Medical Billing Outsourcing Companies In 2027
1. Ventra Health — 434 Clients And 30,000+ Facility-Based Providers
Ventra Health focuses on billing for facility-based physicians: anesthesia, emergency medicine, hospital medicine and radiology groups, plus the hospitals, health systems and ambulatory surgery centers they work in. The company was formed by combining four specialty revenue cycle firms (Abeo, DuvaSawko, Gottlieb and Advocate RCM) and is backed by private equity firm Varsity Health Partners. Its corporate headquarters is on LBJ Freeway in Dallas, Texas.
The scale is unusual for a specialty biller. Ventra reports 434 clients as of March 2026, more than 30,000 providers across 3,600 locations in all 50 states, and specialty footprints that include 971 anesthesiology and 1,939 radiology facilities. Services cover end-to-end medical billing, coding and compliance audits, provider enrollment, provider education, payer contracting support and patient balance collections, with an in-house AI platform called vCision used for coding and analytics.
On security, Ventra lists HITRUST r2 certification and PCI DSS compliance, which is a stronger posture than many billing vendors publish. It suits anesthesia and emergency groups that need time-unit and ED level coding expertise and want a partner that can also help with payer contracts. Smaller office-based practices will likely find it oversized for their needs.
2. Coronis Health — 10,000+ Staff And ISO 27001:2022 Certification
Coronis Health is a large billing and revenue cycle group that serves a wide range of specialties: anesthesia, behavioral health, emergency medical services, emergency medicine, federally qualified health centers, pathology, radiology, surgical specialties and multi-specialty physician groups, as well as hospitals and health systems. The address it lists for contact is in Baltimore, Maryland.
The company reports more than 10,000 team members and describes itself as a global organization. In September 2025 it announced the extension of its ISO 27001:2022 certification across its global operations, which is useful evidence for practices that need to document how offshore teams protect PHI. Leadership changed in 2026, with Pranil Vadgama announced as CEO and President in May.
Coronis pairs its billing teams with an internal revenue platform and specialty-specific tools, including proprietary anesthesia billing tools. It is a practical option for FQHCs and EMS agencies, two segments that many medical billing companies do not handle well because of encounter-based payment rules and ambulance documentation requirements. Because Coronis has grown by bringing several billing brands together, ask which legacy team and system would handle your account and how they report performance.
3. Medusind — Medical And Dental Billing Across 70+ PM And EHR Systems
Medusind runs billing and coding for both medical and dental organizations, which makes it one of the few outsourced medical billing firms that a mixed medical and dental group, or a dental support organization, can use for both sides of the business. The company cites more than 20 years in operation and says it billed over $3 billion in charges last year.
On the medical side, Medusind covers end-to-end revenue cycle work, coding, credentialing and healthcare operations outsourcing, with listed specialties that include anesthesia, behavioral health, cardiology, correctional health, dermatology, emergency medicine, FQHCs, ophthalmology, orthopedics, pathology, radiation oncology, radiology and wound care. Dental services include insurance verification, fee schedule maintenance, A/R follow-up and credentialing. It also offers its own practice management software, MedClarity, but says it works across more than 70 practice management and EHR systems.
According to its company profile, Medusind is headquartered in Miami with US offices in several states and delivery centers in India, including Mumbai, Chennai, Ahmedabad and Coimbatore, with roughly 2,000 staff. That blended model suits multi-location groups that want US account management with offshore capacity for posting and follow-up.
4. Plutus Health — 1,700 RCM Specialists Serving 9,000+ Providers
Plutus Health is a Dallas-based billing and revenue cycle firm with a clear specialty focus. Its strongest areas are behavioral health (ABA therapy, outpatient psychiatry, substance use disorder treatment, intensive outpatient programs and talk therapy) and surgical settings such as ambulatory surgery centers, surgical hospitals and freestanding emergency rooms. It also bills for cardiology, orthopedics, ophthalmology, OB/GYN, pain management, gastroenterology and urology practices.
The company reports 1,700 RCM specialists working from three global delivery centers on a 24/7 schedule and says it serves more than 9,000 providers in over 40 states. Services include charge entry, coding by AAPC-certified coders, claim scrubbing and submission, denial management, A/R follow-up, eligibility verification, insurance discovery and credentialing. It also handles No Surprises Act independent dispute resolution for out-of-network claims, which is relevant for freestanding ERs and surgical facilities.
Plutus holds a SOC 2 Type 2 report and is a business affiliate of the California Ambulatory Surgery Providers association and an affiliate of BHCOE, the behavioral health accreditation body. It lists integrations with CentralReach, AdvancedMD, Tebra, ModMed, NextGen and eClinicalWorks, so ABA and behavioral providers on CentralReach in particular should find onboarding straightforward.
5. AnnexMed — 350+ Healthcare Clients Served From Utah And Chennai
AnnexMed is headquartered in Salt Lake City and delivers much of its work from Chennai, India. It supports more than 350 healthcare organizations and reports 99.1% client retention. Its client base is broad: physician practices, hospitals and health systems, dental support organizations, healthcare payers and, notably, other medical billing companies that use AnnexMed as back-end coding and A/R capacity.
The service menu runs from patient access (scheduling, prior authorization, eligibility and benefit verification) through medical coding services for professional fee, facility and inpatient work, coding audits, payment posting, A/R and denial management, credit balance resolution and underpayment recovery. AnnexMed also offers legacy A/R wind-down and backlog clearance, which is useful when a practice is switching systems or vendors and needs older claims worked to closure.
Coding teams are AAPC, AHIMA and AAHAM certified, and the company states that it is ISO certified, SOC 2 Type II compliant and HIPAA compliant. AnnexMed is a good fit for organizations that already have a billing office but need overflow coders or a specialist team to clear backlogs, as well as for practices that want a full outsourced medical billing service with offshore pricing.
6. Cosentus — 25 Years Of Billing With Nine AI Voice Agents
Cosentus is an Irvine, California billing company with roughly 25 years of history and additional offices in Napa, Dallas, Salt Lake City and Olathe, Kansas. Its core specialties are anesthesia, ambulatory surgery centers and behavioral health, and its client testimonials also mention orthopedic, pain management, OB/GYN, urgent care, general surgery and neurology practices. The company has been growing through acquisitions, including Utah-based Alta Management Solutions in 2025 and an investment in anesthesia-focused Accreda Healthcare Management.
Its RCM 360 service covers the full billing cycle. What stands out is Zeus Ai, a set of nine AI voice agents that handle repetitive payer and patient calls such as eligibility checks, prior authorization follow-ups, claim status inquiries and patient collections, while human teams keep coding judgment, denial strategy and payer negotiation. Practices can also use Medcloud, Cosentus’s cloud practice management platform, though it is optional.
Cosentus holds an AICPA SOC 2 report and a HIPAA compliance seal, is a member of the Healthcare Business Management Association (HBMA), and has appeared on the Inc. 5000 list several times. It offers a no-cost diagnostic review of a practice’s revenue cycle before quoting, which is a sensible first step for anesthesia groups and ASCs comparing vendors.
BillingParadise lists offices in Atlanta, Georgia and Diamond Bar, California, says it operates from four US locations plus offshore teams, and reports capacity of around 600 staff. The company cites more than 21 years of experience in healthcare revenue cycle work and technology.
It is one of the few medical billing companies that publishes an entry price on its homepage: pricing starts at 2.69%. That figure is a starting point rather than a typical rate, and buyers should confirm whether it is a percentage of collections and what volume and specialty it assumes, but publishing any number makes early budgeting easier. Services include eligibility verification, prior authorization, coding, charge entry, denial management and A/R follow-up with both insurer and patient calling, plus credentialing, Medicare revalidation, CAQH maintenance and clearinghouse enrollment.
BillingParadise names 29 specialties, from anesthesia, cardiology and dermatology to nephrology, neurosurgery, ophthalmology, pediatrics, psychiatry and rehab, and has AAPC-certified coders with specialty credentials. It states SOC 2 compliance under SSAE 16, HIPAA compliance and vulnerability and penetration testing (VAPT) audits. It is a practical fit for independent practices and small groups that want a full-service biller with clear pricing and US-based account contacts.
Outsource Strategies International (OSI) has provided medical billing and coding from Tulsa, Oklahoma since 2002. It operates as a division of Managed Outsource Solutions and draws on what it describes as national and international resources, so ask during scoping which tasks are handled in the US and which offshore.
OSI covers medical billing, medical coding services, insurance eligibility verification, prior authorization and A/R management, and runs a parallel dental line with dental billing, insurance verification and A/R work. Its listed medical specialties include cardiology, bariatric surgery, DME, home health, interventional radiology, IVF, neurology, orthopedics, ambulatory surgery centers, pain management, pharmacy, physical therapy, rheumatology, substance abuse treatment, sleep studies and vascular surgery. That list leans toward procedure-heavy and ancillary services, which often need more careful coding and authorization tracking.
The company displays HIPAA and SOC 2 badges and offers a free trial before a contract, which lets a practice test coding accuracy on real charts. OSI has also added MedGenX AI tools and free AI utilities for coding and eligibility checks. It suits small to mid-sized practices and specialty clinics that want a long-established vendor and are comfortable with a trial-first approach.
9. Medwave — US-Only Billing Plus 30 Years Of Credentialing
Medwave is a Pennsylvania firm, based in Cranberry Township outside Pittsburgh, that combines medical billing with a long-running credentialing practice. It says it has credentialed providers for more than 30 years and serves independent physicians, group practices, allied health providers and multi-specialty organizations across most specialties.
The main reason to shortlist Medwave is its delivery model: the company states that it does not send billing work overseas, so accounts are handled by US-based billing staff. For practices whose compliance policies, payer contracts or patient expectations favor domestic handling of PHI, that removes a common objection to outsourced medical billing. Medwave holds a SOC 2 Type 2 report.
Pricing is transparent in structure if not in numbers. Billing is charged as a percentage of collections, with the rate depending on claim volume and specialty (higher volume generally means a lower percentage), and credentialing is priced per provider, per insurance company, with group rates available. Beyond billing and credentialing, Medwave offers payer contracting and rate negotiation, telehealth billing, denial management, A/R recovery and practice consulting. It is best suited to independent and small group practices that want one US team to handle enrollment, contracts and claims.
Medical Billers and Coders (MBC) is a US-based billing company that has operated since 1999 and says it serves practices in all 50 states, with regional teams referenced in Atlanta, Chicago, Dallas, Houston, Jacksonville, Buffalo and Philadelphia. Its specialty coverage is broad, with more than 40 specialties listed in its navigation.
Services follow the full billing cycle: charge entry, payment posting, A/R follow-up, denial management and appeals, plus old A/R recovery for practices that have fallen behind. MBC also offers medical coding with CPC and CCS certified coders, physician credentialing with CAQH enrollment support, medical scribing and an RCM dashboard with CFO-level reporting. It describes a follow-the-sun model for round-the-clock processing, so ask where each part of the work is performed.
MBC states HIPAA compliance and No Surprises Act compliance and carries a BBB business review. Its strengths are breadth and flexibility: it can take on full billing, coding only, credentialing only or a one-time A/R cleanup. That makes it a sensible option for practices in less common specialties, or for groups that want to start with a contained project before committing to full outsourcing.
11. Practolytics — Billing Plus Virtual Medical Assistants From Georgia
Practolytics is based in Duluth, Georgia, and positions itself as a one-stop practice support company rather than a pure biller. Alongside medical billing and revenue cycle work, it offers eligibility and benefits verification, prior authorizations, credentialing, medical coding, compliance audits, contract negotiation, transcription and virtual medical assistant services.
That combination is useful for small practices that are short on front-desk staff as well as billing staff. Rather than hiring one vendor for claims and another for intake, a practice can have Practolytics verify benefits and secure authorizations before visits, then code, submit and follow up on the claims afterward. Its specialty menu is long, covering areas such as urgent care, behavioral health, psychiatry, oncology, cardiology and orthopedics, and it is listed as a partner in the AdvancedMD marketplace.
Practolytics offers a free revenue cycle audit and a custom quote within 24 hours, but it does not publish a pricing model, so ask whether the fee is a percentage of collections or a flat rate and how virtual assistant hours are billed. It states HIPAA compliance but does not list third-party security attestations, so request details of its security controls during due diligence.
How To Choose A Medical Billing Outsourcing Company
Does The Firm Know Your Specialty And Payer Mix?
Coding rules, modifiers and denial patterns differ sharply between, say, anesthesia, behavioral health and orthopedics. Ask for the number of active clients in your specialty, the certified coders (CPC, CCS or specialty credentials) who would work your account, and examples of payer-specific problems they have fixed. A biller that mostly serves primary care may struggle with time-based anesthesia units or DME documentation.
Also ask how they handle your largest payers. A firm that already has enrollment contacts and portal access for your regional Blues plan, Medicaid managed care organizations and Medicare Advantage carriers will get you to steady state faster.
How Is Pricing Structured, And What Is Excluded?
Most medical billing companies charge a percentage of collections, with the rate depending on volume and specialty, while others charge per claim or a flat monthly fee. A percentage of collections aligns incentives, but read what counts as a collection, whether patient payments are included, and which services (credentialing, old A/R recovery, patient statements, coding audits) cost extra.
Ask for the minimum monthly fee, the notice period and what happens to your data and open A/R when the contract ends. Those terms tend to matter more than a one point difference in the headline rate.
Where Will Your Work Be Done, And How Is PHI Protected?
Many billers combine a US account team with offshore coders and A/R callers in India or the Philippines. That model is common and can work well, but you should know it up front. Ask where each function sits, whether offshore staff access your EHR through a secured virtual desktop, and whether the firm will sign a HIPAA business associate agreement covering every subcontractor.
Independent attestations such as SOC 2 Type II, ISO 27001 or HITRUST are a stronger signal than a HIPAA badge on a website. If a firm claims one, ask for the report or certificate and its date. Our guide to onshore, nearshore and offshore BPO covers the trade-offs in more detail.
Will They Work In Your EHR And Practice Management System?
Switching billing vendors should not force you to switch software. Ask which systems the team uses daily (athenahealth, eClinicalWorks, NextGen, ModMed, AdvancedMD, Epic and so on) and whether they work inside your instance or require you to move to theirs. If the firm bundles its own platform, find out who owns the data and how you export it.
What Reporting And Accountability Will You Get?
At minimum you should see monthly reports on charges, collections, days in A/R, A/R over 90 days, denial rate by reason and first-pass acceptance rate. Ask for a sample report and a named account manager. Good firms will agree to service levels such as claim submission within a set number of days of charge entry, and will explain how they escalate payer problems.
Before signing, it helps to run a short structured comparison. Our BPO RFP checklist and BPO pricing guide can be adapted for billing vendors.
Conclusion
The right medical billing outsourcing partner depends less on size than on fit: a team that already knows your specialty, works in your software, is open about where staff are located and charges in a way you can audit. Shortlist two or three firms from this list, request a sample monthly report and a fee schedule, and ask each one to review a slice of your current denials before you decide.
If you also need help with scheduling, intake or patient communication, pair your billing vendor with one of the virtual medical assistant services we have reviewed, and keep both under the same BAA and reporting discipline.
