Trevin T. Nishibun, MD

Medicare activity in 2024

Official CMS public-use data for Trevin T. Nishibun, 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.

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 cholesterol75%

Hospitals where Trevin T. Nishibun works

Medicare's Facility Affiliation Data lists Trevin T. Nishibun 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.

• Casa Colina HospitalPomona, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050782
• Providence St Mary Medical CenterApple Valley, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050300
• San Antonio Regional HospitalUpland, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050099

Practice locations

Addresses where Trevin T. Nishibun is enrolled with Medicare (CMS data updated October 2, 2026).

• 255 E Bonita AvePomona, CA 91767 (909) 596‑7733
• 255 E Bonita Ave, Suite 3bPomona, CA 91767 (909) 593‑3550
• 999 San Bernardino RdUpland, CA 91786 (909) 985‑2811

Group practices

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

• Allied Anesthesia Medical Group Inc191 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in California →

Other anesthesiologists in Pomona

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

• Smita J. Shah, MD
• Kunal R. Jardosh, MD
• Stanley Hoang, MD
• Patience B. Keregha, MD
• Anna A. Adongo, MD
• Michael Richman, MD
• Caleb P. Chu, MD
• Talia H. Dagher, MD

All anesthesiologists in Pomona →

Other clinicians in Allied Anesthesia Medical Group Inc

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

• Nancy Rios, MD
• Son B. Tran, MD
• Smita J. Shah, MD
• Nicole Andonian, MD
• Nicholas B. Pombo, MD
• Peter G. Sawras, MD

Clinician information

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