Quick answers
- Which hospitals does Antonio L. Diaz work at?
- Medicare's official clinician data lists Antonio L. Diaz at 2 hospitals: Hospital Espanol Auxilio Mutuo San Pablo and Hospital Pavia Santurce. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Antonio L. Diaz see patients?
- Medicare's clinician data lists 2 practice locations, including San Juan, PR. Call before your visit to confirm the address.
- What is Antonio L. Diaz's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Antonio L. Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Antonio L. Diaz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Antonio L. Diaz?
- (787) 240-9909, as listed in official Medicare / NPI Registry data.
- What is Antonio L. Diaz's NPI number?
- 1003016775. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Antonio L. Diaz works
Medicare's Facility Affiliation Data lists Antonio L. Diaz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital Espanol Auxilio Mutuo San PabloBayamon, PR · Acute Care Hospital · CCN 400109
- Hospital Pavia SanturceSan Juan, PR · Acute Care Hospital · CCN 400019
Practice locations
Addresses where Antonio L. Diaz is enrolled with Medicare (CMS data updated 2026-10-02).
- 735 Ave Ponce De LeonSan Juan, PR 00917 (787) 240‑9909
- Suit 615 Torre Medica Auxilio Mutuo, Ave Ponce De LeonSan Juan, PR 00917
Specialties
- Nephrologyprimary
Other nephrologists in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ponce School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003016775 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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