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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Glen Edward Diacon Jr., MD

Specialist in Ada, OK · enumerated 2005.

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

National Provider Identifier

1588659957

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Registry record

Entity type Individual (Type 1)
Name Glen Edward Diacon Jr.
Credential MD
Sex Male
Practice address Ada, OK, 74820
Phone (580) 332-0112
Fax (580) 332-1005
Enumeration date Sep 13, 2005
Last updated in NPPES Aug 11, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 16231 (OK) 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
100137260A Medicaid OK -

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 Glen Diacon practice?
The practice location on file with NPPES is in Ada, OK. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Glen Diacon?
The National Provider Identifier (NPI) for Glen Diacon is 1588659957, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-11.