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

Individual provider Gastroenterology Physician · NPI 1174518906

Douglas B Kliewer, MD is an Internal Medicine in Tulsa, Oklahoma. Graduated from University of Oklahoma College of Medicine in 1994, 32 years ago. Practices with Cherokee Nation, a 448-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
32
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2005
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

6465 S Yale Ave Ste 1002
Tulsa, OK 74136-7812
Phone: (918) 481-4706
Fax: (918) 481-4765
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 20114 (OK)

Record details

NPI number1174518906
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 19, 2005
Last updated in NPPESMarch 29, 2016
Mailing addressPo Box 305, Lowell, AR 72745-0305

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Cherokee Nation — 448 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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