Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. William L Parker III, PHD

Individual provider Counseling Psychologist · NPI 1093926198

Dr. William L Parker III, PHD is a Clinical Psychologist in Grand Rapids, Michigan. Qualified in 1987, 39 years ago. Practices as a sole proprietor, accepts Medicare assignment 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.

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Practice location Address checks out

2894 Thornapple River Dr SE
Grand Rapids, MI 49546-6857
Phone: (616) 285-6080
Fax: (616) 285-5466
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X · Licence 6301007243 (MI)

Record details

NPI number1093926198
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 24, 2007
Last updated in NPPESJuly 8, 2007

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 Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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