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Mark Adrain Kiefer, MD

Colon & Rectal Surgery Physician in Tulsa, OK · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1992896567

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Registry record

Entity type Individual (Type 1)
Name Mark Adrain Kiefer
Credential MD
Sex Male
Practice address 1705 E 19th St Ste 502, Tulsa, OK, 74104
Phone (918) 748-7800
Fax (918) 403-6349
Enumeration date Sep 27, 2006
Last updated in NPPES Oct 2, 2020

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 27205 (OK) Secondary
208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 27205 (OK) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Mark Kiefer practice?
The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Kiefer?
The National Provider Identifier (NPI) for Mark Kiefer is 1992896567, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-02.