Jose Mercado Santiago, MD
NPI 1306010699 · General Practice Physician · Isabela, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jose Mercado Santiago, MD is a General Practice Physician provider in Isabela, PR (NPI 1306010699).
Provider details
- NPI number
- 1306010699
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 17119 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 342 | 105 |
| Losartan Potassium | 338 | 104 |
| Metformin Hcl | 223 | 68 |
| Gabapentin | 177 | 55 |
| Insulin Nph Hum/Reg Insulin Hmbrand: Humulin 70-30 | 145 | 19 |
| Amlodipine Besylate | 145 | 47 |
| Oxycodone Hcl/Acetaminophen |
Mailing address
Registry dates
- Enumerated
- 2008-04-17
- Last updated
- 2011-03-10
Frequently asked questions
- What is Jose Mercado Santiago's NPI number?
- Jose Mercado Santiago's National Provider Identifier (NPI) is 1306010699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jose Mercado Santiago's specialty?
- Jose Mercado Santiago is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Jose Mercado Santiago located?
- Jose Mercado Santiago's practice location on file with NPPES is Carr. #2 K.m 106.4, Isabela, PR 00662.
- What is Jose Mercado Santiago's phone number?
- The practice phone number listed in the NPPES registry for Jose Mercado Santiago is (787) 484-1793.
- Does Jose Mercado Santiago accept Medicare?
- Jose Mercado Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jose Mercado Santiago's NPI active?
- Yes — Jose Mercado Santiago's NPI (1306010699) is active in the NPPES registry as of the last update on 2011-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.