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

Halsey Newbrough Simmons, MFT

Individual provider Marriage & Family Therapist · NPI 1164585444

Halsey Newbrough Simmons, MFT is a Marriage & Family Therapist in Pleasant Hill, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

140 Mayhew Way Ste 300
Pleasant Hill, CA 94523-4398
Phone: (707) 315-8889
Fax: (888) 488-6656
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 30120 (CA)

Record details

NPI number1164585444
Entity typeIndividual (Type 1)
GenderMale
Credentials MFT
Sole proprietorYes
NPI enumeratedDecember 18, 2006
Last updated in NPPESMarch 18, 2025
Certification dateMarch 14, 2025

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