Yolanda Mas De Leon, M.D.
NPI 1952372880 · Internal Medicine Physician · Fajardo, PR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yolanda Mas De Leon, M.D. is a Internal Medicine Physician provider in Fajardo, PR (NPI 1952372880).
Provider details
- NPI number
- 1952372880
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 6491 (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
20 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 · 154 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 1,206 | 198 |
| Atorvastatin Calcium | 760 | 138 |
| Levothyroxine Sodiumbrand: Synthroid | 549 | 92 |
| Amlodipine Besylate | 548 | 90 |
| Gabapentin | 511 | 103 |
| Rosuvastatin Calcium | 499 | 95 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-30
- Last updated
- 2022-11-10
- Certified
- 2022-11-10
Frequently asked questions
- What is Yolanda Mas De Leon's NPI number?
- Yolanda Mas De Leon's National Provider Identifier (NPI) is 1952372880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yolanda Mas De Leon's specialty?
- Yolanda Mas De Leon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yolanda Mas De Leon located?
- Yolanda Mas De Leon's practice location on file with NPPES is 10 Calle Union, Fajardo, PR 00738-4935.
- What is Yolanda Mas De Leon's phone number?
- The practice phone number listed in the NPPES registry for Yolanda Mas De Leon is (787) 863-4886.
- Does Yolanda Mas De Leon accept Medicare?
- Yolanda Mas De Leon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yolanda Mas De Leon's NPI active?
- Yes — Yolanda Mas De Leon's NPI (1952372880) is active in the NPPES registry as of the last update on 2022-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.