Physician Profile
Based in Ponce, PR, Luis Martinez-Sierra, M.D. is listed in the NPI registry under gastroenterology. Luis graduated from University of Puerto Rico School of Medicine in 1973.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
SANTA MARIA MEDICAL 450 CALLE FERROCARRIL, STE 210
Ponce, PR 00717
Luis Martinez-Sierra is a gastroenterologist in Ponce, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Luis Martinez-Sierra is listed at Santa Maria Medical 450 Calle Ferrocarril, Ste 210, Ponce, PR 00717. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (787) 840-5042. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Luis Martinez-Sierra's National Provider Identifier is 1376673335. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Luis Martinez-Sierra attended University of Puerto Rico School of Medicine, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
Luis Martinez-Sierra has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Luis Martinez-Sierra. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.