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

John Manfred Maas, EDD

Individual provider Psychologist · NPI 1730239906

John Manfred Maas, EDD is a Psychologist in San Rafael, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
EDD — Doctor of Education
A doctorate in education.

See every abbreviation used in this directory →

Practice location Address checks out

820 Las Gallinas Ave
San Rafael, CA 94903-3452
Phone: (415) 444-3037
Fax: (415) 444-3019
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY8849 (CA)

Record details

NPI number1730239906
Entity typeIndividual (Type 1)
GenderMale
Credentials EDD
Sole proprietorNo
NPI enumeratedJanuary 11, 2007
Last updated in NPPESJuly 8, 2007
Mailing address820 Las Gallinas Ave, San Rafael, CA 94903-3452

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