Michael Y. Karapetian, MD

Medicare activity in 2024

Official CMS public-use data for Michael Y. Karapetian, 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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)2,391 services
2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)1,468 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,409 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)1,264 services
5. Critical care, first 30-74 minutes (99291)276 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%
• Diabetes75%
• Arthritis72%
• Ischemic heart disease67%
• Heart failure55%

Hospitals where Michael Y. Karapetian works

Medicare's Facility Affiliation Data lists Michael Y. Karapetian 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.

• Glendale Memorial Hospital & Health CenterGlendale, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050058
• Hollywood Presbyterian Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050063

Practice locations

Addresses where Michael Y. Karapetian is enrolled with Medicare (CMS data updated October 2, 2026).

• 5220 Santa Monica Blvd, Suite ELos Angeles, CA 90029 (323) 913‑9300

Group practices

Medicare enrollment lists Michael Y. Karapetian as a member of this group (CMS data updated October 2, 2026).

• Michael y Karapetian MD Medical Clinic Inc2 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Angeles

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

• Daniel H. Oblitas, MD
• Anna Milanesi, MD
• Tara Vartanian, MD
• Derek A. Scott, MD
• Michael D. Borookhim, MD
• Mabel Vasquez, MD
• Eric Esrailian, MD
• Anita Batra, MD

All internal medicine doctors in Los Angeles →

Other clinicians in Michael y Karapetian MD Medical Clinic Inc

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

• Nouneh O. Danielyan, 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