Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Michael Bryer-Ash, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1649205899

Michael Bryer-Ash, MD practises Endocrinology in Oklahoma City, Oklahoma. Qualified in 1979, 47 years ago. Practices with Central Oklahoma American Indian Health Council, Inc, a 61-clinician group and accepts Medicare assignment. Licensed in California, Oklahoma, Tennessee and Virginia.

Years since qualifying
47
Licensed in
CA, OK, TN, VA
In the registry since
2006
Specialties on file
4
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

4913 W Reno Ave
Oklahoma City, OK 73127-6339
Phone: (405) 948-4900
Fax: (405) 948-4933
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 26124 (OK)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 28961 (TN)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence A39345 (CA)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 0101275128 (VA)

Record details

NPI number1649205899
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESJanuary 24, 2023
Certification dateJanuary 24, 2023

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Group practice Central Oklahoma American Indian Health Council, Inc. — 61 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Removal of nail tissue 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 patients87
Services billed 1,246 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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.

Colleagues at Central Oklahoma American Indian Health Council, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 61 clinicians in the practice; 12 are shown here.

Other providers in Oklahoma City