Quick answers
- Does Alfredo S. Colon Martinez accept Medicare assignment?
- Yes. Medicare's clinician data says Alfredo S. Colon Martinez accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Alfredo S. Colon Martinez's NPI number?
- 1942391495. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alfredo S. Colon Martinez works
Medicare's Facility Affiliation Data lists Alfredo S. Colon Martinez at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Auxilio Mutuo HospitalSan Juan, PR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 400016
Practice locations
Addresses where Alfredo S. Colon Martinez is enrolled with Medicare (CMS data updated October 2, 2026).
- 66 Calle GeorgettiSan Juan, PR 00925 (787) 765‑4208
Group practices
Medicare enrollment lists Alfredo S. Colon Martinez as a member of this group (CMS data updated October 2, 2026).
- Grupo Gineco-Obstetrico del Norte PSC2 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Other clinicians in Grupo Gineco-Obstetrico del Norte PSC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1977 (49 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942391495 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians