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

Dr. Gregory Paul Hollis, PHD

Individual provider Clinical Neuropsychologist · NPI 1982855276

Dr. Gregory Paul Hollis, PHD is a Clinical Neuropsychologist in Saint Louis, Missouri. Practices as a sole proprietor. Licensed in Georgia.

Licensed in
GA
In the registry since
2008
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

12647 Olive Blvd Ste 600
Saint Louis, MO 63141-6393
Phone: (800) 325-3982
Show map & directions

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

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence PSY001417 (GA)

Record details

NPI number1982855276
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedOctober 5, 2008
Last updated in NPPESOctober 5, 2008

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