Quick answers
- Does Massoud Shahidi accept Medicare assignment?
- Yes. Medicare's clinician data says Massoud Shahidi 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 Massoud Shahidi see?
- In 2024, CMS data shows 22 Original Medicare patients and 28 services for Massoud Shahidi. This counts Original Medicare only and measures volume, not quality.
- What is Massoud Shahidi's NPI number?
- 1588703284. 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 Massoud Shahidi, 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 | 22 |
|---|---|
| Services billed to Medicare | 28 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 63 |
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure73%
- High cholesterol68%
- Diabetes59%
- Chronic kidney disease50%
Hospitals where Massoud Shahidi works
Medicare's Facility Affiliation Data lists Massoud Shahidi 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.
- Saint Francis Medical CenterLynwood, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050104
Practice locations
Addresses where Massoud Shahidi is enrolled with Medicare (CMS data updated October 2, 2026).
- 3630 E Imperial HwyLynwood, CA 90262 (714) 503‑0195
- 555 E Hardy StInglewood, CA 90301 (714) 503‑0195
Group practices
Medicare enrollment lists Massoud Shahidi as a member of this group (CMS data updated October 2, 2026).
- Landmark Anesthesia Medical Group18 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Landmark Anesthesia Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588703284 |
| 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