Quick answers
- Does Mastaneh Nikravesh accept Medicare assignment?
- Yes. Medicare's clinician data says Mastaneh Nikravesh 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.
- How many Medicare patients does Mastaneh Nikravesh see?
- In 2024, CMS data shows 12 Original Medicare patients and 21 services for Mastaneh Nikravesh. This counts Original Medicare only and measures volume, not quality.
- What is Mastaneh Nikravesh's NPI number?
- 1508429143. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Mastaneh Nikravesh, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 12 |
|---|---|
| Services billed to Medicare | 21 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 67 |
Hospitals where Mastaneh Nikravesh works
Medicare's Facility Affiliation Data lists Mastaneh Nikravesh at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026
Practice locations
Addresses where Mastaneh Nikravesh is enrolled with Medicare (CMS data updated October 2, 2026).
- 5395 Ruffin Rd, Suite 204San Diego, CA 92123 (858) 571‑3630
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 461‑1920
- 751 Med Ctr CtChula Vista, CA 91911 (619) 461‑1920
Group practices
Medicare enrollment lists Mastaneh Nikravesh as a member of these groups (CMS data updated October 2, 2026).
- Emergency and Acute Care Medical Corporation422 clinicians in the group
- San Diego Critical Care Medical Group Inc78 clinicians in the group
- Zachary C Cohen MD Apc17 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Other clinicians in Emergency and Acute Care Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508429143 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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