Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Steven Blake O'Brien, MD

Individual provider Internal Medicine Physician · NPI 1841853751

Dr. Steven Blake O'Brien, MD is an Internal Medicine in Oklahoma City, Oklahoma. Graduated from University of Oklahoma College of Medicine in 2019, 7 years ago. Practices with Absolute Best Care Oklahoma LLC, a 9-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
7
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2019
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

3400 NW Expy Ste 500
Oklahoma City, OK 73112-4492
Phone: (405) 945-4589
Fax: (405) 945-4381
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 39315 (OK)

Record details

NPI number1841853751
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 16, 2019
Last updated in NPPESJanuary 12, 2023
Certification dateJanuary 12, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Absolute Best Care Oklahoma Llc — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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