Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Nathan Klammer, MD

Individual provider Emergency Medicine Physician · NPI 1104405869

Nathan Klammer, MD is an Emergency Medicine in Tulsa, Oklahoma. Graduated from University of Arkansas College of Medicine in 2021, 5 years ago. Practices with Creek Nation Hospital and Clinics, a 390-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
5
Trained at
University of Arkansas College of Medicine
Licensed in
OK
In the registry since
2021
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

1145 S Utica Ave Ste 365
Tulsa, OK 74104-4004
Phone: (918) 728-3354
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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 42931 (OK)

Record details

NPI number1104405869
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 7, 2021
Last updated in NPPESApril 9, 2025
Certification dateApril 9, 2025
Mailing address1145 S Utica Ave Ste 365, Tulsa, OK 74104-4004

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice Creek Nation Hospital And Clinics — 390 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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