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

Altha Gail Mason

Individual provider Marriage & Family Therapist · NPI 1760008239

Altha Gail Mason is a Marriage & Family Therapist in Mill Valley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2020

Practice location Address checks out

700 E Blithedale Ave Ste 2
Mill Valley, CA 94941-1596
Phone: (415) 505-0723
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 17462 (CA)

Record details

NPI number1760008239
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedJune 22, 2020
Last updated in NPPESJune 22, 2020
Certification dateJune 22, 2020
Mailing address700 E Blithedale Ave Ste 2, Mill Valley, CA 94941-1596

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