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Dr. John Oldham, M.D.

Emergency Medicine Physician in Saint Louis, MO · enumerated 2005.

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

National Provider Identifier

1659376390

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Registry record

Entity type Individual (Type 1)
Name Dr. John Oldham
Credential M.D.
Sex Male
Practice address 11133 Dunn Rd, Rm H2241, Saint Louis, MO, 63136
Phone (314) 653-5663
Enumeration date Jun 18, 2005
Last updated in NPPES Oct 6, 2011

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License R9476 (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
201103728 Medicaid MO -
1659376390 Medicaid MO -

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 John Oldham?
The National Provider Identifier (NPI) for John Oldham is 1659376390, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Oldham practice?
The practice location on file with NPPES is in Saint Louis, MO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-06.