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

William Sherwin

Individual provider Marriage & Family Therapist · NPI 1780848374

William Sherwin is a Marriage & Family Therapist in Rancho Santa Margarita, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008

Practice location Address checks out

42 Calle Verano
Rancho Santa Margarita, CA 92688-2647
Phone: (415) 940-5221
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 49178 (CA)

Record details

NPI number1780848374
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJuly 14, 2008
Last updated in NPPESSeptember 25, 2025
Certification dateSeptember 25, 2025

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