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

MS. Brenda L. Underhill, MS

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1255510327

MS. Brenda L. Underhill, MS is an Addiction (Substance Use Disorder) Counselor in Greenbrae, California. Registered with an NPI since 2007.

In the registry since
2007
Specialties on file
2
What do these letters mean?
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

1251 S Eliseo Dr
Greenbrae, CA 94904-2005
Phone: (415) 924-5995
Fax: (415) 924-6838
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X
Mental Health Counselor Taxonomy 101YM0800X

Record details

NPI number1255510327
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS
Sole proprietorNo
NPI enumeratedOctober 25, 2007
Last updated in NPPESOctober 25, 2007

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