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

Cathy A Castagna-Petersen, MS, LMFT

Individual provider Professional Counselor · NPI 1871022277

Cathy A Castagna-Petersen, MS, LMFT is a Professional Counselor in Fountain Valley, California. Licensed in California. Registered with an NPI since 2017.

Licensed in
CA
In the registry since
2017
What do these letters mean?
MS — Master of Science
A graduate science degree.
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

10529 Slater Ave
Fountain Valley, CA 92708
Phone: (714) 855-7707
Show map & directions

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

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 18775 (CA)

Record details

NPI number1871022277
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , LMFT
Sole proprietorNo
NPI enumeratedJune 8, 2017
Last updated in NPPESJuly 21, 2022

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