Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Nancy Jean Duffy

Individual provider School Psychologist · NPI 1811805526

Nancy Jean Duffy is a School Psychologist in Glendora, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2026

Practice location Address checks out

535 Richardson Ln
Glendora, CA 91741-1903
Phone: (626) 622-0142
Show map & directions

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

Specialties & licences

School Psychologist (primary) Taxonomy 103TS0200X · Licence 2291 (CA)

Record details

NPI number1811805526
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedSeptember 1, 2026
Last updated in NPPESSeptember 1, 2026
Certification dateSeptember 1, 2026

Other providers in Glendora