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

Gary Warren Hillman, DO

Individual provider Emergency Medicine Physician · NPI 1760444160

Gary Warren Hillman, DO practises Emergency Medicine in Oklahoma City, Oklahoma. Qualified in 1998, 28 years ago. Practices with Memorial Hospital of Texas County Authority, a 10-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
28
Licensed in
OK
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4050 W Memorial Rd ER Dept
Oklahoma City, OK 73120-8382 Not confirmed with CMS for 18 years — call before visiting
Phone: (405) 608-3402
Fax: (405) 749-4561
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 3957 (OK)

Record details

NPI number1760444160
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 3, 2006
Last updated in NPPESMay 23, 2008

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Memorial Hospital Of Texas County Authority — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 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 patients32
Services billed 41 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Memorial Hospital of Texas County Authority

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 5 are shown here.

Other providers in Oklahoma City