Isak Elkayam, MD

Medicare activity in 2024

Official CMS public-use data for Isak Elkayam, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)70 services
2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)36 services
3. Telephone medical discussion with physician, 11-20 minutes (99442)32 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)17 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 cholesterol73%
• High blood pressure68%
• Arthritis34%
• Chronic kidney disease29%
• Ischemic heart disease25%
• Diabetes23%

Hospitals where Isak Elkayam works

Medicare's Facility Affiliation Data lists Isak Elkayam 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.

• Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050116

Practice locations

Addresses where Isak Elkayam is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 1236 N Magnolia AveAnaheim, CA 92801 (714) 995‑1000
• 15216 Vanowen St, Suite 1aVan Nuys, CA 91405 (818) 785‑7875
• 18546 Roscoe Blvd, Suite 300Northridge, CA 91324 (818) 886‑4028
• 7301 Medical Ctr Dr, Suite 500West Hills, CA 91307 (818) 226‑3666
• 824 E Carson St, Suite 104Carson, CA 90745 (310) 830‑9706

Group practices

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

• Healthcare Partners Affiliates Medical Group754 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Anaheim

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

• James C. Hwang, MD
• Kun Chhai Meas, MD
• Alex E. Lim, MD
• Jun Ho Chae, MD
• Brian D. Borsook, MD
• Maria Elena L. Hetts, MD
• Henry Cheng, MD
• Cornelia Holmes, MD

All family doctors in Anaheim →

Other clinicians in Healthcare Partners Affiliates Medical Group

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

• Sina Dadfarmay, MD
• Jonathan M. Shiau, MD
• Christina Yarwood, PA
• Lisa Chau, PA
• Wesley C. Babaran, MD
• Daniel K. McKenzie, 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