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Diagnostic Radiology

Kourosh Nourisamie, MD

Works at hospitals in Long Beach, CA · California

Summary

Dr. Kourosh Nourisamie, MD is a radiologist at 1100 N Tustin Ave, Suite A, Santa Ana, CA 92705. Phone: (714) 835-6055. Accepts Medicare assignment. In 2024, Kourosh Nourisamie had 1,952 Original Medicare patients and 55,381 services. NPI 1124000757. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 1100 N Tustin Ave, Suite A, Santa Ana, CA 92705 · Directions (40 more locations)
  • Phone: (714) 835‑6055
  • Medicare: Accepts Medicare assignment
  • Hospital: Memorialcare Long Beach Medical Center
  • Group practice: Cedars-Sinai Medical Care Foundation (+5 more)
  • Medical school: graduated 1989 (37 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Kourosh Nourisamie, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kourosh Nourisamie accept Medicare assignment?
Yes. Medicare's clinician data says Kourosh Nourisamie 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 Kourosh Nourisamie see?
In 2024, CMS data shows 1,952 Original Medicare patients and 55,381 services for Kourosh Nourisamie. This counts Original Medicare only and measures volume, not quality.
What is Kourosh Nourisamie's NPI number?
1124000757. 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 Kourosh Nourisamie, 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 patients1,952
Services billed to Medicare55,381
Different services or procedures104
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)38,050 services
  2. Injection, gadoterate meglumine, 0.1 ml (A9575)14,950 services
  3. X-ray of chest, 1 view (71045)223 services
  4. Ct scan of abdomen and pelvis before and after contrast (74178)222 services
  5. Complete ultrasound scan of abdomen (76700)162 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%
  • Arthritis50%
  • Diabetes42%
  • Ischemic heart disease31%
  • Chronic kidney disease30%

Hospitals where Kourosh Nourisamie works

Medicare's Facility Affiliation Data lists Kourosh Nourisamie 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.

Practice locations

Addresses where Kourosh Nourisamie is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 41; the Medicare profile lists all.

Group practices

Medicare enrollment lists Kourosh Nourisamie as a member of these groups (CMS data updated October 2, 2026).

  • Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
  • Memorialcare Medical Foundation566 clinicians in the group
  • Beverly Radiology Medical Group III328 clinicians in the group
  • Desert Advanced Imaging Medical Center208 clinicians in the group
  • Fresno Imaging Center133 clinicians in the group
  • Menalam Health Services PC113 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Santa Ana

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

All radiologists in Santa Ana →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

Clinician information

CredentialMD
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124000757
CorrectionsReport 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

  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