Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Gholam Reza Mohammadzadeh, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1699743625

Dr. Gholam Reza Mohammadzadeh, MD practises Thoracic Surgery in Thousand Oaks, California. Graduated from Rush Medical College of Rush University in 1980, 46 years ago. Practices with Genesis Health System, a 262-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
46
Trained at
Rush Medical College of Rush University
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

77 Rolling Oaks Dr Ste 202
Thousand Oaks, CA 91361-1018
Phone: (805) 379-6717
Fax: (805) 379-6719
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence G74293 (CA)

Record details

NPI number1699743625
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 8, 2006
Last updated in NPPESJune 25, 2024
Certification dateJune 25, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyTHORACIC SURGERY
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1980 (46 years in practice)
Group practice Genesis Health System — 262 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Coronary artery bypass graft (CABG) 38 times · 90th percentile
Varicose vein removal 37 times · 69th percentile
Pacemaker insertion or repair 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients220
Services billed 764 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Genesis Medical Center-Davenport Hospital · Davenport, IA · listed as Genesis Medical Center
  • Mercyone Genesis Dewitt Medical Center Hospital · Dewitt, IA · listed as Dewitt ER PC Services
  • Genesis Hlth System Dba Genesis Mdl Ctr-Illini Hospital · Silvis, IL
  • Trinity Rock Island Hospital · Rock Island, IL
  • Genesis Vna Home health agency · Bettendorf, IA

Colleagues at Genesis Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 262 clinicians in the practice; 12 are shown here.

Other providers in Thousand Oaks