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

James Willis

Individual provider Behavior Technician · NPI 1639773583

James Willis is a Behavior Technician in Walnut Creek, California. Practices as a sole proprietor and works from 2 locations. Registered with an NPI since 2020.

In the registry since
2020

Practice location Address checks out

3075 Citrus Cir Ste 240
Walnut Creek, CA 94598-2667
Phone: (925) 256-1100
Fax: (925) 256-1100
Show map & directions

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

Additional practice locations (1)

  • 4410 Red Maple Ct, Concord, CA 94521-4434 — (925) 586-5507

Specialties & licences

Behavior Technician (primary) Taxonomy 106S00000X

Record details

NPI number1639773583
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedNovember 22, 2020
Last updated in NPPESNovember 22, 2020
Certification dateNovember 22, 2020
Mailing address3075 Citrus Cir Ste 240, Walnut Creek, CA 94598-2667

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