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Mark K Keohane, M.D.

Orthopaedic Surgery Physician in O Fallon, MO · enumerated 2005.

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

National Provider Identifier

1710980750

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Registry record

Entity type Individual (Type 1)
Name Mark K Keohane
Credential M.D.
Sex Male
Practice address 9323 Phoenix Village Pkwy, O Fallon, MO, 63366
Phone (636) 561-5030
Fax (636) 561-5033
Enumeration date May 23, 2005
Last updated in NPPES Mar 1, 2012

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 34653 (MO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
4061116 Other - AETNA
43177 Other - CMR
18883 Other - BLUE CROSS BLUE SHIELD
122683 Other - HEALTHLINK
351240001 Other - CIGNA DMERC
900094 Other - UHC
4434V6097 Other - HEALTHCARE USA
9043 Other - EXCLUSIVE CHOICE
2253V3458 Other - GHP/ADVANTRA
SP10133 Other - CIGNA

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

What is the NPI number for Mark Keohane?
The National Provider Identifier (NPI) for Mark Keohane is 1710980750, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Keohane practice?
The practice location on file with NPPES is in O Fallon, MO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-01.