Jose Antonio Ayala Sr., M.D.
NPI 1538102264ActiveIndividual· Internal Medicine· Bayamon, PR
Internal Medicine (M.D.) in Bayamon, Puerto Rico, trained at University of Puerto Rico School of Medicine (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $723,134 for 19,181 claims, against $6,895 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 2 companies reporting payments in 2025, $49.08 in all, mostly food and beverage.
Overview
| NPI | 1538102264 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 13, 2006 |
| Last updated in NPPES | Apr 11, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 8495 | PR |
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 - Internal Medicine (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 21 |
|---|---|
| Services billed | 116 across 10 procedure codes |
| Paid by Medicare | $6,895 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19,181 · 42,266 30-day fills |
|---|---|
| Patients | 982 |
| Total drug cost | $723,134 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Internal Medicine |
Industry payments (Open Payments)
- 2025$49.08 · 2 payments from 2 companies
- 2024$48.18 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $25.00 | 1 |
| Pbg Puerto Rico LLC | $24.08 | 1 |
What the 2025 payments were for
- Food and Beverage$49.08 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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