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

Miss. Hillary Mastrosimone

Individual provider Marriage & Family Therapist · NPI 1336483973

Miss. Hillary Mastrosimone is a Marriage & Family Therapist in Pasadena, California. Registered with an NPI since 2012.

In the registry since
2012

Practice location Address checks out

65 N Madison Ave Ste 302
Pasadena, CA 91101-2035
Phone: (626) 587-2827
Show map & directions

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

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X

Record details

NPI number1336483973
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedNovember 20, 2012
Last updated in NPPESJanuary 1, 2016

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