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

Tara Van Drunen, MD

Individual provider Emergency Medicine Physician · NPI 1598787442

Tara Van Drunen, MD practises Emergency Medicine in Lawton, Oklahoma. Graduated from University of Washington School of Medicine in 2003, 23 years ago. Practices with Mercy Clinic Oklahoma Communities, a 648-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California, Montana and Nevada.

Years since qualifying
23
Trained at
University of Washington School of Medicine
Licensed in
CA, MT, NV
In the registry since
2006
Specialties on file
3
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

1515 NE Lawrie Tatum Rd
Lawton, OK 73507-3002
Phone: (580) 354-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1010 S 7650 E, Crow Agency, MT 59022 — (406) 638-3500
  • 30 13th St, Havre, MT 59501-5222 — (406) 265-2211
  • 6 13th Ave E, Polson, MT 59860-5315 — (406) 883-5680

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 17744 (NV)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MED-PHYS-LIC-142025 (MT)
General Practice Physician Taxonomy 208D00000X · Licence A93666 (CA)

Record details

NPI number1598787442
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 23, 2006
Last updated in NPPESSeptember 28, 2026
Certification dateSeptember 28, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Mercy Clinic Oklahoma Communities — 648 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients108
Services billed 122 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Mercy Clinic Oklahoma Communities

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 648 clinicians in the practice; 12 are shown here.

Other providers in Lawton