Luis C. Anaya Hoyos, M.D.
NPI 1154578078ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· San Antonio, TX
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Gmg Health Systems Associates PA, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $3,802,560 for 4,203 claims, against $6,406 paid for services in 2024. Corcept Therapeutics was the largest of 22 companies reporting payments in 2025, $1,657 in all, mostly food and beverage.
Overview
| NPI | 1154578078 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 21, 2008 |
| Last updated in NPPES | Jun 16, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | P5506 | 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 - Endocrinology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 1,623 across 17 procedure codes |
| Paid by Medicare | $6,406 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,203 · 9,638 30-day fills |
|---|---|
| Patients | 757 |
| Total drug cost | $3,802,560 |
| Generic share | 26% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
Medical group
- Gmg Health Systems Associates PASan Antonio, TX · 117 clinicians
Industry payments (Open Payments)
- 2025$1,657 · 77 payments from 22 companies
- 2024$2,650 · 110 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $260.12 | 13 |
| Bayer Healthcare Pharmaceuticals Inc. | $249.57 | 14 |
| Novo Nordisk Inc | $236.98 | 11 |
| Radius Health, Inc. | $150.31 | 8 |
| Incyte Corporation | $125.00 | 1 |
What the 2025 payments were for
- Food and Beverage$1,657 · 77 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 88 endocrinologists in San Antonio · All endocrinologists in Texas