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

Austin Gajewski, DO

Individual provider Internal Medicine Physician · NPI 1992292429

Austin Gajewski, DO practises Internal Medicine in Tulsa, Oklahoma. Qualified in 2018, 8 years ago. Practices with Tulsa Hospital Medicine Physicians Group, LLC, a 132-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Oklahoma and Wisconsin.

Years since qualifying
8
Licensed in
OK, WI
In the registry since
2018
Specialties on file
3
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

1120 S Utica Ave
Tulsa, OK 74104-4090
Phone: (918) 579-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1500 Red River St, Austin, TX 78701-1918 — (512) 324-8355
  • 700 S Park St, Madison, WI 53715-1830 — (608) 251-6100

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 7796 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence 74741-21 (WI)
Hospitalist Physician Taxonomy 208M00000X · Licence 74741 (WI)

Record details

NPI number1992292429
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 19, 2018
Last updated in NPPESFebruary 17, 2025
Certification dateFebruary 17, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Tulsa Hospital Medicine Physicians Group, Llc — 132 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 patients730
Services billed 809 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Tulsa Hospital Medicine Physicians Group, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 132 clinicians in the practice; 12 are shown here.

Other providers in Tulsa