Kian Mehrazarin, MD

Medicare activity in 2024

Official CMS public-use data for Kian Mehrazarin, 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.

Most frequent services

1. Emergency department visit with high level of medical decision making (99285)181 services
2. X-ray of chest, 1 view (71045)71 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)59 services
4. Emergency department visit with moderate level of medical decision making (99284)43 services
5. Critical care, first 30-74 minutes (99291)32 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 cholesterol71%
• Arthritis51%
• Diabetes50%
• Heart failure47%
• Chronic kidney disease43%

Hospitals where Kian Mehrazarin works

Medicare's Facility Affiliation Data lists Kian Mehrazarin 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.

• Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050327
• St Bernardine Medical CenterSan Bernardino, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050129

Practice locations

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

• 11234 Anderson StLoma Linda, CA 92354
• 2101 N Waterman AveSan Bernardino, CA 92404 (909) 883‑8711
• 25455 Barton Rd, Suite 108aLoma Linda, CA 92354 (909) 558‑4000

Group practices

Medicare enrollment lists Kian Mehrazarin as a member of these groups (CMS data updated October 2, 2026).

• Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group
• Cep America - California1,292 clinicians in the group

Specialties

• Emergency Medicineprimary
• Critical Care (Intensivists)also

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Loma Linda

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

• Katherine E. Seebald, MD
• Aditya Agrawal, MD
• Sabina B. Moore Cohen, MD
• Heather Tassone, DO
• Robert W. Mun, DO
• William Downes, MD
• Natalie Mok, DO
• Lynda Daniel-Underwood, MD

All emergency medicine doctors 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.

• Ahmed M. Abou-Zamzam, MD
• Sonny C. Lee, MD
• Genice L. Schumann, NP
• Vincent K. Wong, MD
• Wen Long, PA
• Catherine Winter, 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