Markham NightengaleM. D.

Gastroenterology·Tulsa, OK

Markham Nightengale, M. D. is a Gastroenterology provider in Tulsa, OK affiliated with 1 ambulatory surgery center in OK, as of July 2026.

NPI1144215971
Registered2005
Centers1
StateOK
Class of1988

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Ambulatory surgery centers

Centers whose service lines match this provider’s. Affiliations change; verify independently.

Tulsa Endoscopy CenterTulsa, OK · Gastroenterology · 14 on panelView center →

Markham Nightengale at a glance

Provider: Markham Nightengale
Credential: M. D.
Specialty: Gastroenterology
Procedures: Gastroenterology CPT codes
Location: Tulsa, OK
Medical school graduation: 1988
NPI registered: 2005
NPI: 1144215971
Snapshot: July 2026

Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.

Questions

Where does Markham Nightengale practice?

Markham Nightengale, M. D. is based in Tulsa, OK and is affiliated with 1 ambulatory surgery center: Tulsa Endoscopy Center in Tulsa, OK. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.

What is Markham Nightengale's NPI number?

Markham Nightengale's National Provider Identifier (NPI) is 1144215971, registered in 2005. Specialty on record: Gastroenterology; credential M. D.

How many Gastroenterology providers in Oklahoma work at ambulatory surgery centers?

25 Gastroenterology surgeons and proceduralists in Oklahoma are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Markham Nightengale among them. The Oklahoma Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.

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