Calvin Einar Mein, M.D.
NPI 1164487617ActiveIndividual· Ophthalmology· San Antonio, TX
Ophthalmology (M.D.) in San Antonio, Texas, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1975). In 2024 Medicare paid $3,441,434 for 902 patients, and Part D covered 582 of their prescriptions, 70% of them generic. Alcon Vision LLC was the largest of 9 companies reporting payments in 2025, $1,345 in all, mostly food and beverage.
Overview
| NPI | 1164487617 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 18, 2006 |
| Last updated in NPPES | Jun 12, 2024 |
| Certified by provider | Jun 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | F7842 | TX |
| Ophthalmology, Retina Specialist | 207WX0107X | F7842 | 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 | 902 |
|---|---|
| Services billed | 31,063 across 55 procedure codes |
| Paid by Medicare | $3,441,434 |
Part D prescriptions in 2024
| Prescriptions (claims) | 582 · 940 30-day fills |
|---|---|
| Patients | 194 |
| Total drug cost | $53,347 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 1975 |
| Medicare specialty | Ophthalmology |
Medical group
- Retina Consultants of Houston PLLCPearland, TX · 25 clinicians
Industry payments (Open Payments)
- 2025$1,345 · 17 payments from 9 companies
- 2024$1,271 · 19 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $408.16 | 3 |
| Regeneron Pharmaceuticals, Inc. | $313.25 | 3 |
| Regeneron Healthcare Solutions, Inc. | $158.19 | 2 |
| Amgen Inc. | $149.93 | 1 |
| Genentech, Inc. | $108.54 | 1 |
What the 2025 payments were for
- Food and Beverage$1,345 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 205 ophthalmologists in San Antonio · All ophthalmologists in Texas