Grisselle M. Robaina Santiago, MD
NPI 1821719857ActiveIndividual· General Practice· Carolina, PR
General Practice (MD) with Physician Healthcare Administration LLC, practicing in Carolina, Puerto Rico. Part D covered 303 prescriptions written in 2024, 95% of them generic. Lists Hospital Perea as a hospital affiliation.
Overview
| NPI | 1821719857 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 8, 2022 |
| Last updated in NPPES | Feb 20, 2026 |
| Certified by provider | Feb 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| General Practice Primary | 208D00000X | 22874 | 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 - General Practice (PR) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 303 · 303 30-day fills |
|---|---|
| Patients | 159 |
| Total drug cost | $2,791 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | General Practice |
Medical group
- Physician Healthcare Administration LLCMayaguez, PR · 5 clinicians
Hospital affiliation
- Hospital PereaMayaguez, PR
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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