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

Matlock Jeffries, MD

Individual provider Internal Medicine Physician · NPI 1033439146

Matlock Jeffries, MD practises Rheumatology in Oklahoma City, Oklahoma. Graduated from University of Oklahoma College of Medicine in 2010, 16 years ago. Practices with Oklahoma Medical Research Foundation, an 11-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
16
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2010
Specialties on file
2
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

920 Sl Young Blvd
Oklahoma City, OK 73104
Phone: (405) 271-5963
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 27883 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence 27883 (OK)

Record details

NPI number1033439146
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2010
Last updated in NPPESJune 22, 2018

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Oklahoma Medical Research Foundation — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients71
Services billed 2,690 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Practises at

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

  • O U Medical Center Hospital · Oklahoma City, OK · listed as Ou Medical Center
  • Ssm Health St Anthony Hospital - Oklahoma City Hospital · Oklahoma City, OK

Colleagues at Oklahoma Medical Research Foundation

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

Other providers in Oklahoma City