Monica Mendez Ayala, M.D.
NPI 1477580983ActiveIndividual· Specialist· Manati, PR
Specialist (M.D.) in Manati, Puerto Rico, trained at University Central del Caribe Escuela de Medicina (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $7,972,979 for 2,600 claims, against $18,508 paid for services in 2024. Janssen Pharmaceuticals, Inc was the largest of 21 companies reporting payments in 2025, $2,756 in all, mostly food and beverage.
Overview
| NPI | 1477580983 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 28, 2006 |
| Last updated in NPPES | Mar 20, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 13157 | PR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 39 |
|---|---|
| Services billed | 2,102 across 30 procedure codes |
| Paid by Medicare | $18,508 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,600 · 3,236 30-day fills |
|---|---|
| Patients | 420 |
| Total drug cost | $7,972,979 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University Central del Caribe Escuela de Medicina |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical groups
- Doctor's Center Hematology and Oncology Group, PSCArecibo, PR · 6 clinicians
- Doctors Center Hematology and Oncology Group Bayamon PSCBayamon, PR · 4 clinicians
- Bayamon Oncology Medical CspBayamon, PR · 2 clinicians
Industry payments (Open Payments)
- 2025$2,756 · 116 payments from 21 companies
- 2024$2,637 · 117 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $371.89 | 16 |
| E.R. Squibb & Sons, L.L.C. | $338.78 | 10 |
| Astrazeneca Pharmaceuticals LP | $329.31 | 14 |
| Merck Sharp & Dohme LLC | $282.53 | 13 |
| Novartis Pharmaceuticals Corporation | $205.99 | 9 |
What the 2025 payments were for
- Food and Beverage$2,756 · 116 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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