Luis Ruiz Sierra, M.D.
NPI 1902958499 · General Practice Physician · Mayaguez, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Luis Ruiz Sierra, M.D. is a General Practice Physician provider in Mayaguez, PR (NPI 1902958499).
Provider details
- NPI number
- 1902958499
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 11197 (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
19 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.
Mailing address
Registry dates
- Enumerated
- 2007-01-17
- Last updated
- 2013-06-13
Frequently asked questions
- What is Luis Ruiz Sierra's NPI number?
- Luis Ruiz Sierra's National Provider Identifier (NPI) is 1902958499, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Luis Ruiz Sierra's specialty?
- Luis Ruiz Sierra is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Luis Ruiz Sierra located?
- Luis Ruiz Sierra's practice location on file with NPPES is 4040 Calle B Ste 4, Mayaguez, PR 00682-1378.
- What is Luis Ruiz Sierra's phone number?
- The practice phone number listed in the NPPES registry for Luis Ruiz Sierra is (787) 833-5898.
- Does Luis Ruiz Sierra accept Medicare?
- Luis Ruiz Sierra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Luis Ruiz Sierra's NPI active?
- Yes — Luis Ruiz Sierra's NPI (1902958499) is active in the NPPES registry as of the last update on 2013-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.