Gabriel Montalvo-Castro, M.D.
NPI 1851704589 · General Practice Physician · Bayamon, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1851704589
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME141853 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 33 | 33 |
| Methylprednisolone | 27 | 27 |
| Prednisone | 19 | 19 |
| Diclofenac Potassium | 15 | 15 |
| Cephalexin | 14 | 14 |
| Dexamethasone | 13 | 13 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 13 | 13 |
| Nitrofurantoin Macrocrystalbrand: Nitrofurantoin |
Practice location
Mailing address
Additional practice locations (1)
- Hf16 Calle Lizzie GrahamToa Baja, PR 00949-3634Phone: (293) 578-7795
Registry dates
- Enumerated
- 2014-06-10
- Last updated
- 2024-02-21
- Certified
- 2024-02-21
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.