Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Joseph Olesnavage, PH.D.
Psychologist in Big Bay, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942237672
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Registry record
Entity type Individual (Type 1)
Name John Joseph Olesnavage
Credential PH.D.
Sex Male
Practice address 3926 Squaw Beach Road, Big Bay, MI, 49808
Phone (906) 250-4799
Enumeration date Jun 27, 2006
Last updated in NPPES Jul 7, 2009
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License 6301010173 (MI) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 237649000 | Other | MI | MAGELLAN HEALTH |
| 680E210290 | Other | MI | BCBSM PIN NUMBER |
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.
Frequently asked questions
What is the NPI number for John Olesnavage?
The National Provider Identifier (NPI) for John Olesnavage is 1942237672, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Olesnavage practice?
The practice location on file with NPPES is in Big Bay, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-07.