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

MS. Diane Irene Royal, MFT

Individual provider Marriage & Family Therapist · NPI 1568674000

MS. Diane Irene Royal, MFT is a Marriage & Family Therapist in Castro Valley, California. Practices as a sole proprietor. 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.

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Practice location Address checks out

20284 Redwood Rd
Castro Valley, CA 94546-4312
Phone: (510) 512-2463
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 43644 (CA)

Record details

NPI number1568674000
Entity typeIndividual (Type 1)
GenderFemale
Credentials MFT
Sole proprietorYes
NPI enumeratedMay 4, 2007
Last updated in NPPESNovember 13, 2008

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