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

Dr. Alireza Parhizgar, MD

Individual provider Internal Medicine Physician · NPI 1013122597

Dr. Alireza Parhizgar, MD practises Internal Medicine in Houston, Texas. Qualified in 1998, 28 years ago. Practices with Physicians Referral Service, a 2,727-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
28
Licensed in
CA, TX
In the registry since
2007
Specialties on file
3
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

6720 Bertner Ave
Houston, TX 77030-2604
Phone: (713) 798-2222
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1515 Holcombe Blvd, Houston, TX 77030-4000 — (713) 792-6161

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence N2231 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence A99156 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence N2231 (TX)

Record details

NPI number1013122597
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 10, 2007
Last updated in NPPESSeptember 26, 2025
Certification dateSeptember 26, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Physicians Referral Service — 2727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients191
Services billed 579 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Physicians Referral Service

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2727 clinicians in the practice; 12 are shown here.

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