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

Dr. Janna Maria Casillas, PSYD

Individual provider Psychologist · NPI 1235904111

Dr. Janna Maria Casillas, PSYD is a Psychologist in Fontana, California. Practices as a sole proprietor and works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2023
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

16465 Sierra Lakes Pkwy Ste 140
Fontana, CA 92336-1242
Phone: (909) 244-9593
Fax: (833) 903-0337
Show map & directions

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

Additional practice locations (1)

  • 180 N Oakland Ave, Pasadena, CA 91101-1714 — (626) 584-5555

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 34680 (CA)

Record details

NPI number1235904111
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedNovember 20, 2023
Last updated in NPPESJune 11, 2024
Certification dateJune 11, 2024

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