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

Dr. Elizabeth Mason, DO

Individual provider Hospitalist Physician · NPI 1922530716

Dr. Elizabeth Mason, DO practises Internal Medicine in Tulsa, Oklahoma. Graduated from Oklahoma State University College of Osteopathic Medicine in 2017, 9 years ago. Practices with Usacs Observation Medicine Services of Oklahoma, LLC, a 200-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
9
Trained at
Oklahoma State University College of Osteopathic Medicine
Licensed in
OK
In the registry since
2017
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

1705 E 19th St Ste 302
Tulsa, OK 74104-5410
Phone: (918) 748-7555
Fax: (918) 403-6352
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 2100 S. Wheeling Ave, Tulsa, OK 74104 — (918) 744-3131
  • 4444 E 41st St, Tulsa, OK 74135-2527 — (918) 619-4400
  • 4502 E 41st St, Tulsa, OK 74135-2536 — (918) 660-3464

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 6511 (OK)

Record details

NPI number1922530716
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 30, 2017
Last updated in NPPESJune 1, 2026
Certification dateJune 1, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOKLAHOMA STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2017 (9 years in practice)
Group practice Usacs Observation Medicine Services Of Oklahoma, Llc — 200 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients271
Services billed 861 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.

Colleagues at Usacs Observation Medicine Services of Oklahoma, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 200 clinicians in the practice; 12 are shown here.

Other providers in Tulsa