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

Joseph Trevor Hardcastle, LMFT

Individual provider Marriage & Family Therapist · NPI 1538368980

Joseph Trevor Hardcastle, LMFT is a Marriage and Family Therapist in San Luis Obispo, California. Qualified in 2002, 24 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Licensed in
CA
In the registry since
2007
What do these letters mean?
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

2945 McMillan Ave Ste 136
San Luis Obispo, CA 93401-6766
Phone: (805) 781-4275
Show map & directions

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

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 42434 (CA)

Record details

NPI number1538368980
Entity typeIndividual (Type 1)
GenderMale
Credentials LMFT
Sole proprietorYes
NPI enumeratedJuly 16, 2007
Last updated in NPPESJuly 16, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMARRIAGE AND FAMILY THERAPIST
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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