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

John Michael Duffey, LPC

Individual provider Professional Counselor · NPI 1043794324

John Michael Duffey, LPC is a Professional Counselor in Greenfield, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2018
What do these letters mean?
LPC — Licensed Professional Counselor
A licensed mental health counsellor.

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Practice location Partly verified

Some contact details are missing from the federal record.

Child & Family Therapeutic Systems 4811 S 76 St #305
Greenfield, WI 53220-4364
Phone: (414) 325-7741
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Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 7094-125 (WI)

Record details

NPI number1043794324
Entity typeIndividual (Type 1)
GenderMale
Credentials LPC
Sole proprietorYes
NPI enumeratedSeptember 21, 2018
Last updated in NPPESJuly 1, 2025
Certification dateJune 13, 2025
Mailing address7100 W Bluemound Rd, Wauwatosa, WI 53213-3723

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