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Neurosurgery

Ashkaun S. Razmara, MD

Works at hospitals in Fairfield, CA · California

Summary

Dr. Ashkaun S. Razmara, MD is a neurosurgeon at 4500 Business Ctr Dr, Fairfield, CA 94534. May accept Medicare assignment. NPI 1023570496. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Neurosurgeon (Medicare lists Neurosurgery)
  • Address: 4500 Business Ctr Dr, Fairfield, CA 94534 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Hospital: NorthBay Medical Center
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Male
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Ashkaun S. Razmara, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ashkaun S. Razmara accept Medicare assignment?
Medicare's clinician data says Ashkaun S. Razmara may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Ashkaun S. Razmara's NPI number?
1023570496. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ashkaun S. Razmara works

Medicare's Facility Affiliation Data lists Ashkaun S. Razmara 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.

  • NorthBay Medical CenterFairfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050367

Practice locations

Addresses where Ashkaun S. Razmara is enrolled with Medicare (CMS data updated October 2, 2026).

  • 4500 Business Ctr DrFairfield, CA 94534
  • 490 Illinois StSan Francisco, CA 94143

Specialties

Find other Neurosurgery doctors in California →

Other neurosurgeons in Fairfield

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

All neurosurgeons in Fairfield →

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1023570496
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians