Quick answers
- Which hospitals does Nicolas C. Casellas Castillo work at?
- Medicare's official clinician data lists Nicolas C. Casellas Castillo at 1 hospital: Hospital Pavia Santurce. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nicolas C. Casellas Castillo see patients?
- Medicare's clinician data lists 3 practice locations, including San Juan, PR. Call before your visit to confirm the address.
- What is Nicolas C. Casellas Castillo's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Nicolas C. Casellas Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Nicolas C. Casellas Castillo 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 Nicolas C. Casellas Castillo?
- (787) 726-7975, as listed in official Medicare / NPI Registry data.
- What is Nicolas C. Casellas Castillo's NPI number?
- 1770540304. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicolas C. Casellas Castillo works
Medicare's Facility Affiliation Data lists Nicolas C. Casellas Castillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital Pavia SanturceSan Juan, PR · Acute Care Hospital · CCN 400019
Practice locations
Addresses where Nicolas C. Casellas Castillo is enrolled with Medicare (CMS data updated 2026-10-02).
- Chinea Bldg, 655 Pavia Fernandez Street Suite 302San Juan, PR 00909
- Chinea Bldg 655 Pavia, Fernandez Street Suite 302San Juan, PR 00909
- Fernandez St, Suite 302San Juan, PR 00909 (787) 726‑7975
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Graduation year | 1985 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770540304 |
| 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