Marcial A. Walker, M.D.
NPI 1811959158ActiveIndividual· Urology· Caguas, PR
Urology (M.D.) in Caguas, Puerto Rico, trained at University of Puerto Rico School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $31,093 for 1,779 claims, against $14,590 paid for services in 2024. Ferring Pharmaceuticals Inc. was the largest of 4 companies reporting payments in 2024, $281.46 in all, mostly food and beverage.
Overview
| NPI | 1811959158 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 3, 2006 |
| Last updated in NPPES | Feb 24, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 12551 | 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 - Urology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 111 across 12 procedure codes |
| Paid by Medicare | $14,590 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,779 · 4,285 30-day fills |
|---|---|
| Patients | 674 |
| Total drug cost | $31,093 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Urology |
Industry payments (Open Payments)
- 2024$281.46 · 4 payments from 4 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Ferring Pharmaceuticals Inc. | $127.84 | 1 |
| Coloplast Corp | $96.14 | 1 |
| Boston Scientific Corporation | $38.73 | 1 |
| Tolmar, Inc. | $18.75 | 1 |
What the 2024 payments were for
- Food and Beverage$281.46 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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