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

Randall L Wolthuis, PHD

Individual provider Clinical Psychologist · NPI 1639390743

Randall L Wolthuis, PHD is a Clinical Psychologist in Alto, Michigan. Qualified in 1987, 39 years ago. Practices as a sole proprietor and offers telehealth. Licensed in Michigan.

Years since qualifying
39
Licensed in
MI
In the registry since
2007
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

8202 Triple L Trl SE
Alto, MI 49302-9551
Phone: (616) 275-2113
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6301006480 (MI)

Record details

NPI number1639390743
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 2, 2007
Last updated in NPPESMarch 21, 2024
Certification dateMarch 21, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services