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

Gregory Daniel Holler, PHD

Individual provider Behavior Technician · NPI 1154132967

Gregory Daniel Holler, PHD is a Behavior Technician in Antioch, California. Practices as a sole proprietor. Registered with an NPI since 2025.

In the registry since
2025
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

4849 Lone Tree Way Ste C
Antioch, CA 94531-8644
Phone: (925) 391-8055
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Behavior Technician (primary) Taxonomy 106S00000X

Record details

NPI number1154132967
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 20, 2025
Last updated in NPPESJanuary 20, 2025
Certification dateJanuary 20, 2025
Mailing address121 Pleasant Pl, Antioch, CA 94509-1842

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