Mark L. Mayo, MD
NPI 1538144423ActiveIndividual· Ophthalmology· Bellaire, TX
Ophthalmology (MD) in Bellaire, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1990). In 2024 Medicare paid $636,907 for 961 patients, and Part D covered 4,198 of their prescriptions, 53% of them generic. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $580.88 in all, mostly food and beverage.
Overview
| NPI | 1538144423 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 13, 2005 |
| Last updated in NPPES | Jan 30, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | J0106 | TX |
| Ophthalmology, Ophthalmic Plastic and Reconstructive Surgery | 207WX0200X | J0106 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 961 |
|---|---|
| Services billed | 3,970 across 52 procedure codes |
| Paid by Medicare | $636,907 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,198 · 4,968 30-day fills |
|---|---|
| Patients | 1,485 |
| Total drug cost | $229,215 |
| Generic share | 53% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Ophthalmology |
Medical group
- Eye Center of Texas LLPPasadena, TX · 19 clinicians
Industry payments (Open Payments)
- 2025$580.88 · 12 payments from 3 companies
- 2024$523.98 · 12 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $522.24 | 10 |
| Glaukos Corporation | $36.80 | 1 |
| Sun Pharmaceutical Industries Inc. | $21.84 | 1 |
What the 2025 payments were for
- Food and Beverage$580.88 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 ophthalmologists in Bellaire · All ophthalmologists in Texas