Quick answers
- Does Kousha Zarnegar accept Medicare assignment?
- Yes. Medicare's clinician data says Kousha Zarnegar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Kousha Zarnegar see?
- In 2024, CMS data shows 442 Original Medicare patients and 733 services for Kousha Zarnegar. This counts Original Medicare only and measures volume, not quality.
- What is Kousha Zarnegar's NPI number?
- 1326082876. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Kousha 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.
| Original Medicare patients | 442 |
|---|---|
| Services billed to Medicare | 733 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Nuclear medicine study from skull base to mid-thigh with ct scan (78815)283 services
- Nuclear medicine study whole body with ct scan (78816)41 services
- Injection for x-ray imaging procedure into vein of arm or leg (36005)38 services
- Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)35 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)28 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 cholesterol71%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)60%
- Arthritis50%
- Diabetes41%
- Chronic kidney disease32%
Hospitals where Kousha Zarnegar works
Medicare's Facility Affiliation Data lists Kousha 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.
- Imperial Valley Health - El Centro HospitalEl Centro, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050045
- Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050485
- UC San Diego Health Hillcrest - Hillcrest Medical CenterSan Diego, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050025
Practice locations
Addresses where Kousha Zarnegar is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1401 W Merced Ave, Suite 102West Covina, CA 91790 (626) 813‑9988
- 1415 Ross AveEl Centro, CA 92243 (800) 926‑8273
- 200 W Arbor DrSan Diego, CA 92103
- 2801 Atlantic AveLong Beach, CA 90806 (562) 933‑1554
- 447 N El Camino RealEncinitas, CA 92024 (858) 657‑7000
Group practices
Medicare enrollment lists Kousha Zarnegar as a member of these groups (CMS data updated October 2, 2026).
- Regents of the University of California2,089 clinicians in the group
- Memorialcare Medical Foundation566 clinicians in the group
- United Medical Imaging Healthcare Inc58 clinicians in the group
Specialties
- Nuclear Medicineprimary
Other nuclear medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Regents of the University of California
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326082876 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians