Quick answers
- Which hospitals does Maria E. Perez Grau work at?
- Medicare's official clinician data lists Maria E. Perez Grau at 2 hospitals: Doctors' Center Hospital San Juan and Hospital Pavia Santurce. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria E. Perez Grau see patients?
- Medicare's clinician data lists 1 practice location in San Juan, PR. Call before your visit to confirm the address.
- What is Maria E. Perez Grau's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Maria E. Perez Grau accept Medicare assignment?
- Yes. Medicare's clinician data says Maria E. Perez Grau 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 Maria E. Perez Grau?
- (787) 946-4401, as listed in official Medicare / NPI Registry data.
- What is Maria E. Perez Grau's NPI number?
- 1821065855. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maria E. Perez Grau works
Medicare's Facility Affiliation Data lists Maria E. Perez Grau at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Doctors' Center Hospital San JuanSanturce, PR · Acute Care Hospital · CCN 400006
- Hospital Pavia SanturceSan Juan, PR · Acute Care Hospital · CCN 400019
Practice locations
Addresses where Maria E. Perez Grau is enrolled with Medicare (CMS data updated 2026-10-02).
- 1429 Fernandez Juncos Ave, Suite 4San Juan, PR 00910 (787) 946‑4401
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists 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 | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821065855 |
| 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