The best ophthalmology billing companies of 2026 for surgery centers and clinics

A cataract case produces two claims. The surgeon's professional claim goes out on a CMS-1500. The facility claim, with the IOL implant on it, goes out on a UB-04. They carry different codes, different modifiers and different payer rules, and the center only gets paid in full when both are right. That's the test an ophthalmology billing company has to pass before anything else, and most of the companies on the lists for this search have never filed a facility claim.

Those lists are worth a minute. Four of the top-ten lists that come up for "best ophthalmology billing companies" were written by billing companies, and each one ranks its own company first. One of the others discloses paid placements. There is no independent, dated ranking of billing firms that serve ophthalmology surgery centers, which is a strange gap for the specialty with the second-largest number of single-specialty ASCs billing Medicare: 1,061 ophthalmology centers in 2020, eleven behind gastroenterology (Becker's ASC Review, March 2022, from the MedPAC report to Congress).

So here is one. Expert Medical Billing is first on it, and we wrote it, so the same rules apply as on our ASC billing companies ranking: the criteria were set before any company was scored, every number about another company comes from its own pages or the trade press with the source and month attached, and where a company doesn't publish something, the entry says so instead of guessing.

What an ophthalmology biller has to get right

1. Surgery center and clinic on one team. If you run an ASC with an attached clinic, the same encounter can generate a facility claim and a professional claim. We scored whether a company bills both, and whether it says so for ophthalmology specifically.

2. Where the work happens. Several eye-care billers run on one practice management platform and sell it alongside the billing. Two of the companies below are the software vendors themselves. We scored whether the team works inside the system you already run, or whether your billing moves.

3. Ophthalmology depth. Laterality modifiers, bilateral same-session versus separate-session cataract rules, IOL and premium-lens billing, intravitreal injections with the drug on the claim, and testing services that get denied when the diagnosis doesn't support them. We looked for certified ophthalmic coders and for subspecialty coverage in the company's own words.

4. Access and sign-off. Who your front desk can call, and who approves a write-off.

5. Pricing you can find before the call. Whether a rate is published anywhere.

The list at a glance

The ten, in detail

1. Expert Medical Billing

Expert Medical Billing, or EMB, is a specialized billing department for ambulatory surgery centers and clinics. A dedicated team runs the complete revenue cycle inside the center's own EHR, practice management system and clearinghouse: eligibility checked before the case, certified coding with op notes coded to the implant line, clean claims out the same day, every denial worked rather than filed, payments posted and reconciled daily. Credentialing and enrollment, old A/R recovery and coding audits run as separate services for centers that need them. Ophthalmology is its strongest specialty, and its two published surgery center cases are both ophthalmology.

Surgery center and clinic: both, on one team. One of the two published cases is an ophthalmology ASC with an attached clinic, where the same team handles the facility and professional sides.

Where the work happens: in your systems. Anyone at the center can open any claim on any day and see where it stands. Every adjustment carries a name and a reason, and no write-off goes through without the center's sign-off. EMB reports a 98% first-pass clean claim rate and says on its site that it will show you how that number is counted (expertmedicalbilling.co, October 2026).

Ophthalmology depth: the four-provider case describes coding tightened around laterality and implant documentation on a high-volume cataract and retina schedule, with the center's own payer denial patterns worked upstream (expertmedicalbilling.co/case-studies, October 2026).

Access and sign-off: a named team with direct lines for front-office staff, so a prior authorization question doesn't route through leadership. Every write-off waits on the owners' sign-off. Thirty days' notice to leave, and the data stays in your systems because it never left them.

Pricing: published, by monthly insurance collections. 4.9% up to $50,000 a month, 3.9% from $50,000 to $100,000, 3.5% from $100,000 to $400,000, and 2.9% above $400,000 (expertmedicalbilling.co/surgery-centers, October 2026).

Proof: a physician-owned ophthalmology ASC with four providers had 30% of its receivables over 90 days old at takeover. Ten months later that share was 10%, while visit volume grew 45%; collections finished 65.5% above the prior-year baseline and total receivables fell by $196,150. The second case, an ophthalmology ASC with an attached clinic and five providers, changed billers in the middle of a merger with no dip in performance; receivables over 91 days fell from 25% to 14%, and the ASC and clinic collected $4.35 million in 2025. Both sets of numbers come from the centers' own billing data (expertmedicalbilling.co/case-studies, October 2026).

Best for: ophthalmology ASCs, and ASC-plus-clinic groups that want one dedicated team on both sides of the encounter, working inside the systems the center already runs, with the price on the page before the call.

2. Practice Management Resource Group (PMRG)

An ophthalmology-only billing company in Tinley Park, Illinois, outside Chicago. The consulting firm dates to 1992 and PMRG says it has been "taking care of ophthalmologists since 2003" (medicalpmrg.com, October 2026). Services run from full revenue cycle through credentialing and privileges, A/R clean-up projects, fee schedule setup, contract analysis, a patient call center and custom month-end reports, with consulting on operations, compliance and MIPS alongside.

Surgery center and clinic: PMRG's AdvancedMD marketplace profile says it handles revenue cycle for ophthalmology ASCs; its own site doesn't mention surgery centers (AdvancedMD AdvancedBiller marketplace, April 2026).

Where the work happens: on AdvancedMD. PMRG is an AdvancedMD Platinum Partner and calls it its platform of choice since 2008. If you run something else, ask what moves.

Ophthalmology depth: the whole company. "Ophthalmology billing is all PMRG does," per the marketplace profile, covering all related subspecialties.

Access and sign-off: dedicated specialists for credentialing and a call center for patient billing questions. On write-offs, PMRG's own line is that it never writes anything off unless the client requests it.

Pricing: not published.

Best for: ophthalmology practices already on AdvancedMD that want a biller who does nothing else.

3. Agnite Health

An ophthalmology and optometry billing company in Richardson, Texas, claiming more than 350 ophthalmology practices served over 25 years and named clients including The Eye Center, Sight 360, Eyes of Texas and Traverse City Eye (agnitehealth.com, October 2026). Its billers are encouraged to become Ophthalmic Certified Specialists, and every claim is audited and released by a billing manager.

Surgery center and clinic: practices. Neither its site nor its AdvancedMD profile mentions surgery centers; cataract appears only in a client's name.

Where the work happens: AdvancedMD. The marketplace profile says all customers receive AdvancedMD practice management free with the service (AdvancedMD AdvancedBiller marketplace, April 2026).

Ophthalmology depth: OCS-encouraged billers and service-level targets stated in hours: charge posting and claim submission within 24 hours, rejections corrected within 24 hours, denials worked within 24 to 48 hours, payments posted within 24 to 48 hours, and claims over 45 days reviewed monthly. It claims a clean claim acceptance rate above 99%.

Access and sign-off: weekly client meetings appear in a testimonial; the write-off process isn't described.

Pricing: not published.

Best for: high-volume clinics that want posting and submission turnaround in writing and don't mind moving to AdvancedMD.

4. Assembly Health

A revenue cycle company with an ophthalmology page and a separate ASC page, and the firm Nextech built its own RCM service with (Nextech press release, May 2024). Its ophthalmology copy covers "both office-based and surgical ophthalmology services, including ASC and hospital settings," with coding for cataract surgery, glaucoma treatment, retinal procedures, refractive surgery and diagnostic testing (assembly.health, June 2026). The ASC page lists ophthalmology alongside orthopedics, pain management and podiatry, with compliance monitoring against the ASC Conditions for Coverage (assembly.health, January 2026).

Surgery center and clinic: both, named in its own copy, which only one other company on this list does.

Where the work happens: not stated.

Ophthalmology depth: subspecialty coverage listed; coder credentials not stated.

Access and sign-off: not stated. Headquarters, founding year and size aren't stated either.

Pricing: not published.

Best for: ophthalmology ASCs that want a biller with a dedicated ASC service line, and are prepared to ask the questions the site leaves open.

5. Fast Pay Health

The billing service of First Insight, the company behind the MaximEyes eye-care EHR. It covers eligibility, claim submission and follow-up, credentialing, payment posting, denials and appeals, patient statements and performance tracking (maximeyes.com, March 2026).

Surgery center and clinic: practices. Surgery centers aren't mentioned.

Where the work happens: your system. The page says you don't have to be a MaximEyes customer and that the team works "no matter your eye care EHR or practice management system."

Ophthalmology depth: "deep experience in optometry and ophthalmology billing," in the company's words; coder credentials not stated.

Access and sign-off: the team is described as an extension of the practice; the write-off process isn't described.

Pricing: not published.

Best for: clinics that want to keep their current EHR and want an eye-care-only biller rather than a multi-specialty one.

6. Nextech RCM Services

Nextech is specialty practice software (dermatology, med spa, ophthalmology, orthopedics, plastic surgery) with a billing service launched in May 2024 and built with Assembly Health. It covers prior authorization, enrollment and credentialing, coding, submission, posting, denials, A/R clean-up and reporting, assigns each client a dedicated RCM specialist, and will re-badge a practice's in-house billing staff (Nextech, May 2024).

Nextech says the service increases collections by an average of 10% (May 2024). In October 2024, Wyatt Surgery Center, a four-OR multi-specialty ASC in Tucson that includes ophthalmology, selected it and reported a collections increase of nearly 20% (Nextech, October 2024).

Surgery center and clinic: practices, plus that one named ASC.

Where the work happens: inside Nextech. The service is "fully integrated within Nextech's specialty-specific platform," so it's for Nextech customers.

Ophthalmology depth: ophthalmology is one of five Nextech specialties; coder credentials not stated.

Access and sign-off: a dedicated RCM specialist for regular reviews. Write-off process not described.

Pricing: not published.

Best for: practices already on Nextech that want billing on the same contract as the software.

7. ModMed BOOST

Modernizing Medicine's billing service, run on ModMed's own EHR and practice management platform from Boca Raton, Florida. BOOST collected about $1.8 billion in claims for clients in the twelve months to October 2024 (ModMed, October 2024).

It includes an inbound patient billing call center, monthly financial reporting with a client management team, eligibility review, claim filing, denial management and resubmissions (modmed.com/boost-rcm, October 2026).

Surgery center and clinic: ModMed sells ophthalmology ASC software with cataract workflows, but its only specialty-specific BOOST product is for gastroenterology, and the BOOST page's ASC line refers to GI centers (modmed.com, October 2026).

Where the work happens: inside ModMed only. The billers are trained on ModMed's EHR and PM, and the ophthalmology page tells new clients to get up to speed on its practice management system.

Ophthalmology depth: ophthalmology is one of eleven ModMed specialties; the BOOST page has no ophthalmology-specific content.

Access and sign-off: a client manager and client advisors, per the site and a customer testimonial.

Pricing: not published. The ophthalmology page says only "additional charges apply."

Best for: practices on ModMed ophthalmology that want the software vendor to run billing too.

8. OmniMD

A Hawthorne, New York, billing and software company with an ASC billing page covering orthopedics, pain management, ophthalmology and GI (omnimd.com, October 2026). The ophthalmology section is the most specific on this list for facility work: cataract surgery, IOL implant billing under revenue code 0278, and the bilateral same-session versus separate-session rules. It claims a clean claim rate above 97% and a 29-day A/R resolution, and says switching takes 30 to 45 days with a dedicated transition manager. Retina isn't mentioned.

Surgery center and clinic: facility claims on the UB-04, with physician claims on the CMS-1500 described separately.

Where the work happens: not stated for ASC clients. OmniMD sells its own billing software.

Ophthalmology depth: "ASC-credentialed coders who work exclusively on surgical center cases," in its words, with the cataract and IOL rules written out on the page.

Access and sign-off: a dedicated transition manager; the ongoing contact model isn't described.

Pricing: not published; the page links to a pricing calculator.

Best for: ASCs that want facility billing from a company that documents the IOL rules, and will ask about the professional side separately.

9. Medcare MSO

A multi-specialty billing company with an ophthalmology page covering cataracts and anterior segment, retina and vitreous, glaucoma, cornea, oculoplastics, pediatric and strabismus, and neuro-ophthalmology and uveitis (medcaremso.com, September 2026). It claims a 98.5% first-pass rate, a revenue increase of up to 35% and a 35% reduction in A/R, with no time period for any of them.

Surgery center and clinic: not stated on the ophthalmology page. Its separate ASC page covers ophthalmology among six center types.

Where the work happens: your choice. The page says the service works alongside your existing ophthalmology EHR and practice management software, with no need to switch, and offers its own software if you'd rather.

Ophthalmology depth: certified coders and the subspecialty list above; CPT examples on the page include 66984, 66982 and 67028.

Access and sign-off: a large staff with cover for absences, in its words; the contact model isn't described.

Pricing: not published. The site cites an industry range of 3% to 7% of collections without stating its own.

Best for: practices that want one vendor for billing and an EHR, with the option to keep their own.

10. Coronis Health

A multi-specialty revenue cycle company with ophthalmology as one line among behavioral health, FQHCs, hospitals, radiology, anesthesia, EMS and labs (coronishealth.com, August 2026). The ophthalmology page lists A/R, automation tools, collections and denial management, financial analysis, patient access and system integration.

Surgery center and clinic: not stated. The ophthalmology page refers to surgical procedures generally and never to surgery centers.

Where the work happens: "You can keep your system of record," per the page.

Ophthalmology depth: no coder credentials, no subspecialty list and no ophthalmology-specific numbers on the page.

Access and sign-off: experts described as working "as part of your organization"; the contact model isn't described.

Pricing: not published.

Best for: groups already using Coronis for other specialties that want ophthalmology under the same contract.

Which one fits your situation

You run an ophthalmology ASC with an attached clinic. Two companies on this list say in their own copy that they bill both the facility and the professional side for ophthalmology: Expert Medical Billing and Assembly Health. Everyone else either bills practices, bills facilities, or doesn't say. Ask any company you're considering which claim form their ophthalmology team files most, and who handles the other one.

You're a high-volume cataract center and the backlog is old. The number to ask about is the share of receivables over 90 days. Expert Medical Billing publishes two ophthalmology cases with that number before and after. Agnite Health publishes turnaround targets in hours. Nobody else on the list publishes an ophthalmology outcome you can check.

You're on Nextech or ModMed and the vendor is offering billing. Both services run inside the vendor's platform and neither publishes pricing. The question to settle before signing is what happens to the billing if you ever change software, because neither vendor says.

You're on AdvancedMD. Two ophthalmology-only firms, PMRG and Agnite Health, are built on it, and Medcare MSO works alongside it. If you're not on AdvancedMD, the first two mean a platform move.

You want to keep your EHR and get an eye-care-only biller. Fast Pay Health works in any eye-care system. Expert Medical Billing works in any system, in any specialty it serves.

Questions to ask an ophthalmology billing company

1. Which claim form does your ophthalmology team file most, the CMS-1500 or the UB-04, and who files the other one for us?
2. Who codes our cataract cases, and are they OCS or CPC certified?
3. How do you handle bilateral cataracts done in separate sessions, and premium IOLs billed to the patient?
4. For intravitreal injections, do you bill the drug and the procedure on the same claim, and how do you track the drug units?
5. Will you work inside our EHR and practice management system, or does our billing move to yours?
6. Who approves a write-off, and does every adjustment carry a name?
7. Can our front desk call your team directly?
8. What is the share of receivables over 90 days across your ophthalmology clients, and can we see one before-and-after?
9. What's the rate, and is there a setup fee?

Frequently asked questions

What does ophthalmology billing cost?

Among the ten companies here, only Expert Medical Billing publishes a rate: 2.9% to 4.9% of monthly insurance collections, by volume. Our guide to what ASC billing costs has the survey data behind the range. Medcare MSO cites an industry range of 3% to 7% without stating its own. ModMed says additional charges apply for BOOST. The rest quote after a call.

Can one company bill both our surgery center and our clinic?

Yes, but ask. On this list, Expert Medical Billing and Assembly Health say so for ophthalmology in their own copy. OmniMD describes facility billing and treats physician billing as separate.

Does an ophthalmology-only biller beat an ASC-only biller?

It depends on which side of the encounter is bleeding. An ophthalmology-only practice biller may never have filed a UB-04. An ASC-only biller may not know a premium IOL from a standard one. For a center with a clinic attached, the company has to do both. ASC-wide billers that don't claim ophthalmology, such as nimble solutions and SIS, are covered in our ranking of ASC billing companies.

Why do so many eye-care billers run on AdvancedMD?

AdvancedMD runs a marketplace of partner billing companies and some, like PMRG and Agnite Health, build their service on it. It's a good fit if you're already on the platform, and a migration if you're not.

What should we check on a vendor's own billing service?

Two things: whether the team is trained on ophthalmology or on the software, and what happens to the billing if you change software. Neither Nextech nor ModMed publishes an answer to the second.

What's a good first-pass clean claim rate for ophthalmology?

The companies on this list that publish one claim 97% to 99%. Ask how it's counted, because a rate measured at the clearinghouse and a rate measured at the payer are different numbers. Expert Medical Billing says on its site that it will show you how its 98% is counted.

How this list was built

Company websites were read on 17 October 2026, and press releases and trade press articles are cited with their publication month. No company paid for placement. Companies that rank themselves first on their own top-ten lists were read but not relied on for anything except their own stated facts. Every entry can be checked against the pages named in it, and corrections go to the address on our contact page.

If you run an ophthalmology ASC and want to see how a dedicated team would work inside your systems, book a discovery call. If the question is still whether the center has outgrown in-house billing, the ASC guide at thepracticeoperator.co/asc-billing covers that first.