Juan Montoyo Santiago, MD
NPI 1124779251 · General Practice Physician · San Juan, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Juan Montoyo Santiago, MD is a General Practice Physician provider in San Juan, PR (NPI 1124779251).
Provider details
- NPI number
- 1124779251
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 23103 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 134 | 36 |
| Losartan Potassium | 116 | 27 |
| Levothyroxine Sodium | 62 | — |
| Famotidine | 55 | 32 |
| Furosemide | 47 | — |
| Gabapentin | 44 | 18 |
| Amlodipine Besylate | 42 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$205 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- Bayamon Medical CenterCarr 2 Km 11.7Bayamon, PR 00959Phone: (787) 474-8282
- Ave. Roberto ClementeBloque 124 Numero 8Carolina, PR 00985-0098Phone: (787) 750-4920
Registry dates
- Enumerated
- 2022-01-11
- Last updated
- 2023-08-09
- Certified
- 2023-08-08
Frequently asked questions
- What is Juan Montoyo Santiago's NPI number?
- Juan Montoyo Santiago's National Provider Identifier (NPI) is 1124779251, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Juan Montoyo Santiago's specialty?
- Juan Montoyo Santiago is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Juan Montoyo Santiago located?
- Juan Montoyo Santiago's practice location on file with NPPES is Plaza 65 Shooping Center, 90 C. Alondra, San Juan, PR 00924.
- What is Juan Montoyo Santiago's phone number?
- The practice phone number listed in the NPPES registry for Juan Montoyo Santiago is (939) 318-3812.
- Does Juan Montoyo Santiago accept Medicare?
- Juan Montoyo Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Juan Montoyo Santiago's NPI active?
- Yes — Juan Montoyo Santiago's NPI (1124779251) is active in the NPPES registry as of the last update on 2023-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.