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Cardiac Surgery

Peyman Benharash, MD

Works at hospitals in Los Angeles, CA · Santa Monica, CA · West Hills, CA · California

Summary

Dr. Peyman Benharash, MD is a cardiac surgeon at 100 Medical Plz, Suite 630, Los Angeles, CA 90095. Phone: (310) 825-2631. Accepts Medicare assignment. In 2024, Peyman Benharash had 106 Original Medicare patients and 235 services. NPI 1003000639. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Peyman Benharash, 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 Peyman Benharash accept Medicare assignment?
Yes. Medicare's clinician data says Peyman Benharash 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 Peyman Benharash see?
In 2024, CMS data shows 106 Original Medicare patients and 235 services for Peyman Benharash. This counts Original Medicare only and measures volume, not quality.
What is Peyman Benharash's NPI number?
1003000639. 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 Peyman Benharash, 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 patients106
Services billed to Medicare235
Different services or procedures47
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)46 services
  2. Harvest of vein using an endoscope (33508)16 services
  3. Coronary artery bypass using artery graft, 1 graft (33533)16 services
  4. Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)14 services
  5. Limited reconstruction of upper heart chamber and alteration of electrical pathway using an endoscope (33265)13 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%
  • Ischemic heart disease74%
  • Heart failure69%
  • Atrial fibrillation60%
  • Arthritis48%

Hospitals where Peyman Benharash works

Medicare's Facility Affiliation Data lists Peyman Benharash 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 Peyman Benharash is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Peyman Benharash as a member of this group (CMS data updated October 2, 2026).

  • The Regents of the University of California42 clinicians in the group

Specialties

Find other Cardiac Surgery doctors in California →

Other cardiac surgeons in Los Angeles

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

All cardiac surgeons in Los Angeles →

Other clinicians in The Regents of the University of California

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003000639
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