Marcos Santiago Hernandez, MD
NPI 1619080389ActiveIndividual· Specialist· San Juan, PR
Specialist (MD) in San Juan, Puerto Rico, licensed in PR, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $741,927 for 7,377 claims, against $15,110 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $100.54 in all, mostly food and beverage. Lists Presbyterian Community Hospital as a hospital affiliation.
Overview
| NPI | 1619080389 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 16, 2006 |
| Last updated in NPPES | Jul 1, 2026 |
| Certified by provider | Jul 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 80006 | 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 | 77 |
|---|---|
| Services billed | 255 across 9 procedure codes |
| Paid by Medicare | $15,110 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,377 · 18,142 30-day fills |
|---|---|
| Patients | 479 |
| Total drug cost | $741,927 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Presbyterian Community HospitalSan Juan, PR
Industry payments (Open Payments)
- 2025$100.54 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $65.54 | 1 |
| E.R. Squibb & Sons, L.L.C. | $35.00 | 1 |
What the 2025 payments were for
- Food and Beverage$100.54 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Specialist providers in San Juan
- 1023096112
- 1053334201
- 1184614927
- 1205812492
- 1225088388
- 1356303549
- 1376608984
- 1417906751
- 1487661146
- 1538262183
- 1558361618
- 1619050523