Medicare Enrolled

Dr. Gawain Dyer, M.D.

Retina Specialist (Ophthalmology) Physician · San Antonio, TX
Practice pattern: Mixed Practice— Diverse clinical practice across multiple procedure types
Speaking/Promotional
800 MCCULLOUGH AVE, San Antonio, TX 78215
2102266169
In practice since 2009 (16 years)
NPI: 1427286137 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Dyer from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Dyer? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Dyer

Dr. Gawain Dyer is a retina specialist (ophthalmology) physician in San Antonio, TX, with 16 years in practice. Based on federal Medicare data, Dr. Dyer performed 1,814 Medicare services across 642 unique beneficiaries.

Between the years covered by Open Payments, Dr. Dyer received a total of $18,051 from 27 pharmaceutical and/or device companies across 184 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in retina specialist (ophthalmology) physician. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Dyer is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 16 years in practice▲ 1,814 Medicare services$ $18,051 industry payments

Medicare Practice Summary

Medicare Utilization ↗
1,814
Medicare services
Bottom 35% in TX for retina specialist (ophthalmology) physician
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
642
Unique beneficiaries
$160
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~113 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

ProcedureVolumeAvg. paidAvg. submitted
Retinal imaging (OCT scan)498$29$120
Comprehensive eye exam, established patient484$88$175
Eye injection for retinal disease308$85$345
Aflibercept eye injection (Eylea)258$685$1,180
Injection, dexamethasone, intravitreal implant, 0.1 mg147$158$300
Injection, bevacizumab, 10 mg119$56$250
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$18,051
Total received (2018-2024)
Avg $2,579/year across 7 years
Top 22% in TX for retina specialist (ophthalmology) physician
27
Companies
184
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$9,136 (50.6%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,416 (46.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$500 (2.8%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$2,982
2023
$1,221
2022
$6,125
2021
$846
2020
$2,942
2019
$2,669
2018
$1,266

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Alimera Sciences, Inc.
$9,661
EyePoint Pharmaceuticals US, Inc.
$2,116
Alcon Vision LLC
$1,241
Genentech USA, Inc.
$772
Dutch Ophthalmic, USA
$500
Allergan Inc.
$493
Regeneron Healthcare Solutions, Inc.
$433
Novartis Pharmaceuticals Corporation
$406
Apellis Pharmaceuticals, Inc.
$399
ABBVIE INC.
$308
Allergan, Inc.
$269
Alcon Laboratories Inc
$247
Mallinckrodt Enterprises LLC
$176
BIOTISSUE HOLDINGS, INC.
$146
TissueTech, Inc.
$121
BioTissue Holdings, Inc.
$120
AbbVie Inc.
$119
Ocular Therapeutix, Inc.
$107
Bausch & Lomb Americas Inc.
$100
Mallinckrodt Hospital Products Inc.
$93
OPTOS, INC.
$78
Astellas Pharma US Inc
$46
ANI Pharmaceuticals, Inc.
$30
Dompe US, Inc.
$23
Mallinckrodt LLC
$17
Biogen, Inc.
$16
Genentech, Inc.
$13
Top 3 companies account for 72.1% of total payments
Associated products mentioned in payments ›
ACTHAR · ACTIVEFOCUS · BEOVU · COMBIGAN · Constellation · DEXTENZA · DUREZOL · EVA Ophthalmic Surgical System · EYLEA · EYLEA HD · EYP-1901 · ILUVIEN · Iluvien · Izervay · Lucentis · Monaco · Non-Covered Product · OXERVATE · OZURDEX · PROKERA · PURIFIED CORTROPHIN GEL · PanOptix · Prokera · RTH258A · SUSVIMO · Stellaris · Syfovre · VABYSMO · Vabysmo · XIIDRA · XIPERE · YUTIQ
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

The majority of payments (51%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in retina specialist (ophthalmology) physician and does not inherently indicate bias, but patients may wish to be aware.

Equivalent to $995 per 100 Medicare services performed
Looking for a retina specialist (ophthalmology) physician in San Antonio?
Compare retina specialist (ophthalmology) physicians in the San Antonio area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Retina Specialist (Ophthalmology) Physicians within 10 mi
10
Per 100K population
0.5
County median income
$70,571
Nearest hospital
BAPTIST MEDICAL CENTER
1.2 mi

Data Sources

Provider Registry NPPESWeekly updates
Medicare Enrollment PECOSMonthly updates
Practice Data Medicare Util.Annual (CY lag)
Industry Payments Open PaymentsCY 2024
Disciplinary History— Not publicN/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Dyer is a mixed practice specialist, with moderate Medicare volume, and speaking/promotional industry engagement, with 16 years of practice experience.

This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →

Frequently Asked Questions

Is Dr. Dyer experienced with retinal imaging (oct scan)?
Based on Medicare claims data, Dr. Dyer performed 498 retinal imaging (oct scan) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Dyer receive payments from pharmaceutical companies?
Yes. Dr. Dyer received a total of $18,051 from 27 companies across 184 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Dyer's costs compare to other retina specialist (ophthalmology) physicians in San Antonio?
Dr. Dyer's average Medicare payment per service is $160. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Dyer) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →