NPPES file of Aug 9, 2026

Gholam Reza Mohammadzadeh, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Thousand Oaks, CA

Gholam Reza Mohammadzadeh, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Thousand Oaks, California, and NPI 1699743625, issued on Mar 8, 2006. Check the license (California G74293, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699743625
Name
Gholam Reza Mohammadzadeh
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License number
G74293 CA
Self-reported in NPPES; status is on the state search
Practice location
77 Rolling Oaks Dr Ste 202, Thousand Oaks, CA 91361
Phone
(805) 379-6717
Enumerated
Mar 8, 2006
Record last updated
Jun 25, 2024
Fax
(805) 379-6719
Medicaid ID
00G742930 CA
Medicare enrollment
Enrolled (PECOS I20250930003230); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1980
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 77 Rolling Oaks Dr Ste 202

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sue Ann Ferraro, NPNurse Practitioner1477218311

Verify Gholam Reza Mohammadzadeh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G74293
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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40% more Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

141 Medicare Part D claims for 56 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 12 claims were for opioids.

  1. Gholam Mohammadzadeh141
  2. Specialty average101

Most prescribed

  1. Metoprolol Tartrate21 claims
  2. Gabapentin20 claims
  3. Lorazepam16 claims
  4. Eliquis11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $407.26

6 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gholam Mohammadzadeh$407.26
  2. Specialty average$7,828.84

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Genesis Health SystemDavenport, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California

There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.

Other thoracic surgery (cardiothoracic vascular surgery) physician records in California

  1. Kelechi Abanobi, M.DLos Angeles, CA1720236953
  2. Amir Abolhoda, MDOrange, CA1891875951
  3. Reginald Abraham, M DFountain Valley, CA1720042864
  4. Adrian Acuna HigakiLos Angeles, CA1831991454
  5. Robert Adamson, M.D.San Diego, CA1043292584
  6. Alaa Afifi, MDSanta Ana, CA1609802552
  7. Ricardo Aguirre, MDDanville, CA1699739219
  8. Palash Aiyer, MDSan Francisco, CA1649832213
  9. Andrew Akcelik, MDSan Francisco, CA1992298319
  10. Akbarshakh Akhmerov, MDWest Hollywood, CA1215464276

Common questions

What is Gholam Reza Mohammadzadeh, MD's NPI number?

Gholam Reza Mohammadzadeh, MD's National Provider Identifier (NPI) is 1699743625, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gholam Reza Mohammadzadeh, MD located?

The NPPES record lists a practice address at 77 Rolling Oaks Dr Ste 202, Thousand Oaks, CA, 91361. Phone: (805) 379-6717. Providers update this record themselves, so call before visiting.

How can I verify Gholam Reza Mohammadzadeh, MD's license?

NPPES lists California license number G74293, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gholam Reza Mohammadzadeh, MD prescribe under Medicare Part D?

In 2024, Gholam Reza Mohammadzadeh, MD had 141 Medicare Part D claims for 56 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.