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

Dr. Riaz Ahmed Sirajuddin, MD

Individual provider Cardiovascular Disease Physician · NPI 1235186099

Dr. Riaz Ahmed Sirajuddin, MD is a Cardiovascular Disease (Cardiology) in Oklahoma City, Oklahoma. Graduated from Indiana University School of Medicine in 1991, 35 years ago. Practices with Riaz A. Sirajuddin MD PC, a 3-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Ohio and Oklahoma.

Years since qualifying
35
Trained at
Indiana University School of Medicine
Licensed in
OH, OK
In the registry since
2006
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

10413 Greenbriar Pkwy
Oklahoma City, OK 73159-7656
Phone: (405) 691-4665
Fax: (405) 378-7628
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 272 Hospital Rd Ste 125, Chillicothe, OH 45601-9031 — (740) 779-4570

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 22726 (OK)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 35.071247 (OH)
Specialist Taxonomy 174400000X · Licence 22726 (OK)

Record details

NPI number1235186099
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2006
Last updated in NPPESFebruary 24, 2026
Certification dateFebruary 24, 2026

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Riaz A. Sirajuddin Md Pc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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