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

Mr. Irvin Leroy Holtzhouse, MA, TLLP

Individual provider Counseling Psychologist · NPI 1982965299

Mr. Irvin Leroy Holtzhouse, MA, TLLP is a Counseling Psychologist in Caro, Michigan. Licensed in Michigan. Registered with an NPI since 2012.

Licensed in
MI
In the registry since
2012
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

See every abbreviation used in this directory →

Practice location Address checks out

651 N State St
Caro, MI 48723-1543
Phone: (989) 673-5700
Fax: (989) 672-2555
Show map & directions

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

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X · Licence 6301015082 (MI)

Record details

NPI number1982965299
Entity typeIndividual (Type 1)
GenderMale
Credentials MA , TLLP
Sole proprietorNo
NPI enumeratedJune 4, 2012
Last updated in NPPESJune 4, 2012