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Hospitalist

Sabrina Sirabonian, MD

Works at hospitals in Loma Linda, CA · California

Summary

Dr. Sabrina Sirabonian, MD is a hospitalist at 11234 Anderson St, Loma Linda, CA 92354. Phone: (909) 558-5174. Accepts Medicare assignment. NPI 1609524248. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Hospitalist
  • Address: 11234 Anderson St, Loma Linda, CA 92354 · Directions (2 more locations)
  • Phone: (909) 558‑5174
  • Medicare: Accepts Medicare assignment
  • Hospital: Loma Linda University Medical Center
  • Group practice: Faculty Physicians and Surgeons of Llusm
  • Medical school: Liberty Univ College Of Osteopathic Medicine · graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Sabrina Sirabonian, 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 Sabrina Sirabonian accept Medicare assignment?
Yes. Medicare's clinician data says Sabrina Sirabonian 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 Sabrina Sirabonian's NPI number?
1609524248. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sabrina Sirabonian works

Medicare's Facility Affiliation Data lists Sabrina Sirabonian 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.

Practice locations

Addresses where Sabrina Sirabonian is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sabrina Sirabonian as a member of this group (CMS data updated October 2, 2026).

  • Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in Loma Linda

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

All hospitalists in Loma Linda →

Other clinicians in Faculty Physicians and Surgeons of Llusm

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolLiberty Univ College Of Osteopathic Medicine
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609524248
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