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

Dr. Kelly Diane Darby Holder, PHD

Individual provider Psychologist · NPI 1477565612

Dr. Kelly Diane Darby Holder, PHD is a Clinical Psychologist in Grand Rapids, Michigan. Graduated from Loma Linda University School of Medicine in 2005, 21 years ago. Practices with Advantage Health/Saint Mary's Medical Group, a 494-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan, Pennsylvania and Tennessee.

Years since qualifying
21
Trained at
Loma Linda University School of Medicine
Licensed in
MI, PA, TN
In the registry since
2006
Specialties on file
3
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

250 Cherry St SE
Grand Rapids, MI 49503-4608
Phone: (616) 685-5600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 500 University Dr, Hershey, PA 17033-2360 — (717) 531-8515

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6301019678 (MI)
Psychologist Taxonomy 103T00000X · Licence PS016389 (PA)
Psychologist Taxonomy 103T00000X · Licence 2973 (TN)

Record details

NPI number1477565612
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedAugust 13, 2006
Last updated in NPPESFebruary 4, 2026
Certification dateFebruary 4, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Advantage Health/Saint Mary'S Medical Group — 494 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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