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

Mr. Grant Jay Zweifel, MFT

Individual provider Marriage & Family Therapist · NPI 1669539516

Mr. Grant Jay Zweifel, MFT is a Marriage & Family Therapist in Visalia, California. Practices as a sole proprietor and works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

520 E Tulare Ave
Visalia, CA 93292-3629
Phone: (559) 623-0900
Show map & directions

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

Additional practice locations (1)

  • 204 N Floral St Ste A, Visalia, CA 93291-4957 — (559) 739-1944

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence MFC 37910 (CA)

Record details

NPI number1669539516
Entity typeIndividual (Type 1)
GenderMale
Credentials MFT
Sole proprietorYes
NPI enumeratedJanuary 2, 2007
Last updated in NPPESSeptember 11, 2020
Certification dateSeptember 11, 2020

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