Kaven Hosseinzadeh, MD

Medicare activity in 2024

Official CMS public-use data for Kaven Hosseinzadeh, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)832 services
2. Hospital discharge day management, more than 30 minutes (99239)181 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)113 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 cholesterol75%
• Arthritis57%
• Ischemic heart disease55%
• Diabetes50%
• Heart failure50%

Hospitals where Kaven Hosseinzadeh works

Medicare's Facility Affiliation Data lists Kaven Hosseinzadeh 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
• Loma Linda University Medical Center-MurrietaMurrieta, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050770

Practice locations

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

• 39765 Date St, Suite 102Murrieta, CA 92563 (951) 894‑4665

Group practices

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

• Healthcare Crossing Corporation17 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Murrieta

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

• Sara Alsarray, MD
• Eunice Rhee, DO
• Pye Aung, MD
• Richard J. Reynolds Iii, MD
• Kuang Cheng Chen, DO
• Cain Ranjan, MD
• Ilya Yakhnenko, MD
• Brian Yang, MD

All internal medicine doctors in Murrieta →

Other clinicians in Healthcare Crossing Corporation

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

• Helen L. Tran, MD
• Heather J. Pleskow-Weisman, MD
• Sarah N. Matthews, DO
• Christopher A. Toupin, MD
• Suzanne E. Chang, MD
• Debralynne Zickafoose, 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