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

Individual provider Cardiovascular Disease Physician · NPI 1114957511

John Joseph Mahmarian, MD is a Cardiovascular Disease (Cardiology) in Houston, Texas. Graduated from New York Medical College in 1980, 46 years ago. Practices with Tmh Physician Associates PLLC, a 1,899-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
46
Trained at
New York Medical College
Licensed in
TX
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

6550 Fannin St Smith Tower Ste 1901
Houston, TX 77030-2717
Phone: (713) 441-1100
Fax: (713) 790-2643
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence F9767 (TX)

Record details

NPI number1114957511
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 3, 2006
Last updated in NPPESMarch 7, 2014

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1980 (46 years in practice)
Group practice Tmh Physician Associates Pllc — 1899 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations13 on file with Medicare

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