Quick answers
- Which hospitals does Maria E. Justiniano work at?
- Medicare's official clinician data lists Maria E. Justiniano at 1 hospital: Hospital de la Concepcion. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria E. Justiniano see patients?
- Medicare's clinician data lists 2 practice locations, including Mayaguez, PR. Call before your visit to confirm the address.
- What is Maria E. Justiniano's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Maria E. Justiniano accept Medicare assignment?
- Yes. Medicare's clinician data says Maria E. Justiniano 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.
- Does Maria E. Justiniano offer telehealth?
- Medicare's clinician data says Maria E. Justiniano offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Maria E. Justiniano?
- (787) 806-3939, as listed in official Medicare / NPI Registry data.
- What is Maria E. Justiniano's NPI number?
- 1619084217. 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. Justiniano works
Medicare's Facility Affiliation Data lists Maria E. Justiniano at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital de la ConcepcionSan German, PR · Acute Care Hospital · CCN 400021
Practice locations
Addresses where Maria E. Justiniano is enrolled with Medicare (CMS data updated 2026-10-02).
- Calle De Diego, Suite 115Mayaguez, PR 00682 (787) 806‑3939
- Paseo Los Robles, C/ J M Monje 3029Mayaguez, PR 00682
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Puerto Rico
Clinicians with the same Medicare primary specialty in Puerto Rico — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Central Del Caribe Escuela De Medicina |
| Graduation year | 1998 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1619084217 |
| 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