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

Mr. John A. Yunker, MS, LICPSYCHO

Individual provider Psychologist · NPI 1225114515

Mr. John A. Yunker, MS, LICPSYCHO is a Psychologist in Clayton, Missouri. Practices as a sole proprietor. Licensed in Missouri.

Licensed in
MO
In the registry since
2006
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

225 S Meramec Ave Ste 202
Clayton, MO 63105-3511
Phone: (314) 727-7266
Fax: (314) 994-1929
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY 00875 (MO)

Record details

NPI number1225114515
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , LICPSYCHO
Sole proprietorYes
NPI enumeratedOctober 29, 2006
Last updated in NPPESJuly 8, 2007

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