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Emergency Medicine

Quinn T. Fujii, DO

Works at hospitals in Santa Rosa, CA · California

Summary

Dr. Quinn T. Fujii, DO is an emergency medicine doctor at 1165 Montgomery Dr, Santa Rosa, CA 95405. Phone: (707) 546-3210. Accepts Medicare assignment. In 2024, Quinn T. Fujii had 608 Original Medicare patients and 979 services. NPI 1255894200. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1165 Montgomery Dr, Santa Rosa, CA 95405 · Directions
  • Phone: (707) 546‑3210
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence Santa Rosa Memorial Hospital
  • Group practice: Providence Medical Foundation
  • Medical school: Touro Un College Of Osteopathic Medicine, Vallejo · graduated 2019 (7 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Quinn T. Fujii, 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 Quinn T. Fujii accept Medicare assignment?
Yes. Medicare's clinician data says Quinn T. Fujii 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 Quinn T. Fujii see?
In 2024, CMS data shows 608 Original Medicare patients and 979 services for Quinn T. Fujii. This counts Original Medicare only and measures volume, not quality.
What is Quinn T. Fujii's NPI number?
1255894200. 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 Quinn T. Fujii, 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 patients608
Services billed to Medicare979
Different services or procedures34
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)379 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)250 services
  3. Emergency department visit with moderate level of medical decision making (99284)142 services
  4. Critical care, first 30-74 minutes (99291)102 services
  5. Emergency department visit with low level of medical decision making (99283)22 services

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 pressure75%
  • High cholesterol73%
  • Arthritis49%
  • Anxiety40%
  • Depression37%
  • Ischemic heart disease36%

Hospitals where Quinn T. Fujii works

Medicare's Facility Affiliation Data lists Quinn T. Fujii 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 Quinn T. Fujii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Quinn T. Fujii as a member of this group (CMS data updated October 2, 2026).

  • Providence Medical Foundation1,466 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Santa Rosa

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

All emergency medicine doctors in Santa Rosa →

Other clinicians in Providence Medical Foundation

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

Clinician information

CredentialDO
Medical schoolTouro Un College Of Osteopathic Medicine, Vallejo
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255894200
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians