Shahriar R. Zarnegar, MD

Medicare activity in 2024

Official CMS public-use data for Shahriar R. Zarnegar, 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)1,135 services
2. Established patient complete exam of visual system (92014)594 services
3. Imaging of optic nerve (92133)469 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)342 services
5. Measurement of corneal curvature and depth of eye (92136)329 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%
• Arthritis43%
• Diabetes42%
• Chronic kidney disease25%
• Ischemic heart disease20%

Hospitals where Shahriar R. Zarnegar works

Medicare's Facility Affiliation Data lists Shahriar R. Zarnegar 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.

• Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050107

Practice locations

Addresses where Shahriar R. Zarnegar is enrolled with Medicare (CMS data updated October 2, 2026).

• 910 E Stowell RdSanta Maria, CA 93454 (805) 925‑2637

Group practices

Medicare enrollment lists Shahriar R. Zarnegar as a member of this group (CMS data updated October 2, 2026).

• Elite Eyecare Medical Group a Medical Corporation13 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in California →

Other ophthalmologists in Santa Maria

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

• Stephen Couvillion, MD
• Stephen S. Bylsma, MD
• Randall L. Goodman, MD
• John B. Cotter, MD
• Ragui W. Sedeek, MD
• Ahmad A. Amir, MD
• Robert L. Avery, MD
• Pamela R. Golchet, MD

All ophthalmologists in Santa Maria →

Other clinicians in Elite Eyecare Medical Group a Medical Corporation

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

• Stephen S. Bylsma, MD
• Kenneth R. Kendall, OD
• Timothy E. Nelson
• David E. Bowin, OD
• Daniel R. Agarwal, MD
• Randall L. Goodman, 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