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

Markham L Nightengale, MD

Individual provider Gastroenterology Physician · NPI 1144215971

Markham L Nightengale, MD is a Gastroenterology in Tulsa, Oklahoma. Qualified in 1988, 38 years ago. Practices with Creek Nation Hospital and Clinics, a 390-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
38
Licensed in
OK
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4200 E Skelly Dr Ste 700
Tulsa, OK 74135-3256
Phone: (918) 438-7050
Fax: (918) 221-0835
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 18311 (OK)

Record details

NPI number1144215971
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 19, 2005
Last updated in NPPESMarch 19, 2025
Certification dateMarch 19, 2025
Mailing addressPo Box 305, Lowell, AR 72745-0305

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1988 (38 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

Other providers in Tulsa