Abdol M. Memar-Zia, MD

Medicare activity in 2024

Official CMS public-use data for Abdol M. Memar-Zia, 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)870 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)398 services
3. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)320 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)267 services
5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)197 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 cholesterol75%
• High blood pressure73%
• Arthritis45%
• Diabetes32%
• Ischemic heart disease22%
• Osteoporosis18%

Hospitals where Abdol M. Memar-Zia works

Medicare's Facility Affiliation Data lists Abdol M. Memar-Zia 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.

• Adventist Health Simi ValleySimi Valley, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050236
• Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050549

Practice locations

Addresses where Abdol M. Memar-Zia is enrolled with Medicare (CMS data updated October 2, 2026).

• 1687 Erringer RdSimi Valley, CA 93065 (805) 527‑6666

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Simi Valley

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

• Jenna R. Gharzeddine, MD
• Sangkyu Noh, DO
• Grace E. Shin, DO
• Cynthia Velez, MD
• Jasbir S. Tiwana, MD
• Albert C. Kam, MD
• William A. Lee, MD
• Sohail R. Abdi Moradi, MD

All internal medicine doctors in Simi Valley →

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