Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Joseph Olesnavage, PHD

Individual provider Psychologist · NPI 1942237672

John Joseph Olesnavage, PHD is a Psychologist in Big Bay, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

3926 Squaw Beach Rd
Big Bay, MI 49808-0254
Phone: (906) 250-4799
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 6301010173 (MI)

Record details

NPI number1942237672
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 27, 2006
Last updated in NPPESJuly 7, 2009