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 registered under 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

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 angioplasty and stenting 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 patients342
Services billed 1,885 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $28,859 5 payments
Travel and Lodging $4,253 7 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $2,724 104 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

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

  • Carnegie Tri-County Municipal Hospital Hospital · Carnegie, OK · listed as Carnegie Tri-County Municipal Hospital Management, Inc
  • The Physicians' Hospital In Anadarko Hospital · Anadarko, OK · listed as Physicans Hospital in Anadarko
  • Adena Regional Medical Center Hospital · Chillicothe, OH
  • Ssm Health St Anthony Hospital - Oklahoma City Hospital · Oklahoma City, OK

Colleagues at Riaz A. Sirajuddin MD PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Oklahoma City