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

Dr. John Charles Brennan, PSYD

Individual provider Clinical Psychologist · NPI 1538595244

Dr. John Charles Brennan, PSYD is a Clinical Psychologist in Wyandotte, Michigan. Practices as a sole proprietor and works from 2 locations. Licensed in Michigan.

Licensed in
MI
In the registry since
2013
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

2955 Biddle Ave Ste 200
Wyandotte, MI 48192-5231
Phone: (248) 470-6225
Fax: (734) 324-1566
Show map & directions

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

Additional practice locations (1)

  • 105 Breakwater N, Hendersonville, TN 37075-5683 — (248) 470-6225

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6301014907 (MI)

Record details

NPI number1538595244
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedSeptember 25, 2013
Last updated in NPPESApril 8, 2021
Certification dateFebruary 23, 2021

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