Mariela Marquez Pantoja, M.D.
NPI 1376978098ActiveIndividual· Internal Medicine, Nephrology· Juncos, PR
Internal Medicine, Nephrology (M.D.) in Juncos, Puerto Rico, licensed in PR, with an NPI issued in September 2013. Their prescriptions cost Medicare Part D more than their services did: $385,353 for 1,794 claims, against $2,449 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 5 companies reporting payments in 2025, $220.46 in all, mostly food and beverage.
Overview
| NPI | 1376978098 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 12, 2013 |
| Last updated in NPPES | Jul 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 19598 | PR |
| General Practice | 208D00000X | 29470R | 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 - Nephrology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 39 across 5 procedure codes |
| Paid by Medicare | $2,449 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,794 · 2,104 30-day fills |
|---|---|
| Patients | 240 |
| Total drug cost | $385,353 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Industry payments (Open Payments)
- 2025$220.46 · 9 payments from 5 companies
- 2024$329.80 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $68.02 | 2 |
| Vifor Pharma, Inc. | $53.57 | 3 |
| Bayer Puerto Rico Inc. | $47.50 | 2 |
| Calliditas Therapeutics US Inc. | $29.42 | 1 |
| Lilly USA, LLC | $21.95 | 1 |
What the 2025 payments were for
- Food and Beverage$220.46 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Juncos
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