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Diagnostic Radiology

Rajaa Almestady, MD

Works at hospitals in Marysville, CA · Simi Valley, CA · Ukiah, CA … · California

Summary

Rajaa Almestady, MD (Diagnostic Radiology) is listed by Medicare at 5 hospitals in Marysville, CA, Simi Valley, CA and Ukiah, CA and other places. NPI 1649421447. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Rajaa Almestady, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Diagnostic RadiologyPrimary specialty
YesAccepts Medicare assignment
26Years since medical school (graduated 2000)
FemaleGender (as listed)
USC Care Medical Group IncGroup practice (+5 more)

Quick answers

Which hospitals does Rajaa Almestady work at?
Medicare's official clinician data lists Rajaa Almestady at 5 hospitals: Adventist Health and Rideout, Adventist Health Simi Valley, Adventist Health Ukiah Valley, Glendale Adventist Medical Center and UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Rajaa Almestady see patients?
Medicare's clinician data lists 27 practice locations, including Willits, CA, Saint Helena, CA and Quincy, CA. Call before your visit to confirm the address.
What is Rajaa Almestady's specialty?
Medicare lists Diagnostic Radiology as the primary specialty.
Does Rajaa Almestady accept Medicare assignment?
Yes. Medicare's clinician data says Rajaa Almestady 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 Rajaa Almestady?
(707) 459-6801, as listed in official Medicare / NPI Registry data.
What is Rajaa Almestady's NPI number?
1649421447. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Rajaa Almestady works

Medicare's Facility Affiliation Data lists Rajaa Almestady at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Rajaa Almestady is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 27; the Medicare profile lists all.

Group practices

Medicare enrollment lists Rajaa Almestady as a member of these groups (CMS data updated 2026-10-02).

  • USC Care Medical Group Inc1,380 clinicians in the group
  • Ukiah Adventist Hospital135 clinicians in the group
  • Seven Star Hospital Associates Inc126 clinicians in the group
  • Advanced Radiology and Interventional Associates Inc104 clinicians in the group
  • Glendale Adventist Medical Center103 clinicians in the group
  • Adventist Health Clearlake Hospital Inc.87 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Willits

Clinicians with the same Medicare primary specialty in Willits, CA — not a recommendation.

All radiologists in Willits →

Clinician information

CredentialMD
Graduation year2000
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1649421447
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians