Quick answers
- Does Gretchen M. Marquez Vega accept Medicare assignment?
- Yes. Medicare's clinician data says Gretchen M. Marquez Vega 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 Gretchen M. Marquez Vega's NPI number?
- 1386502748. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Gretchen M. Marquez Vega is enrolled with Medicare (CMS data updated October 2, 2026).
- 110 Calle Doctor Santiago VeveSan German, PR 00683 (787) 319‑8632
- Parc Las Margaritas 94 Calle FlamboyaCabo Rojo, PR 00623
- Parc Las Margaritas 94 Calle Flamboyan Monte GrandeCabo Rojo, PR 00623
- PO BoxCoto Laurel, PR 00780
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in San German
Clinicians with the same Medicare primary specialty in San German, PR — not a recommendation.
Clinician information
| Credential | PSY |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386502748 |
| 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
- 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