Physician Profile
William O. Marrero Ortiz, MD
Unclaimed ProfileAbout Dr. Marrero Ortiz
Based in San Juan, PR, William O. Marrero Ortiz, MD is listed in the NPI registry under geriatric medicine. William is also listed as specializing in internal medicine. NPI 1619418027 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (787) 768-9813
- Email not available
Practice Locations
735 AVE PONCE DE LEON STE 415
San Juan, PR 00917
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Dr. Marrero Ortiz's specialty?
Dr. Marrero Ortiz is a geriatrician in San Juan, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Geriatric Medicine”.
NPI registry
Where can I find Dr. Marrero Ortiz?
Dr. Marrero Ortiz is listed at 735 Ave Ponce de Leon Ste 415, San Juan, PR 00917. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Marrero Ortiz?
The number on file is (787) 768-9813. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Marrero Ortiz?
Dr. Marrero Ortiz's National Provider Identifier is 1619418027. 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
How much experience does Dr. Marrero Ortiz have?
Dr. Marrero Ortiz has 9+ years experience. Registered with an NPI since 2017. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Dr. Marrero Ortiz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marrero Ortiz. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.