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

Mr. William John Simpson, MFT

Individual provider Marriage & Family Therapist · NPI 1912072661

Mr. William John Simpson, MFT is a Marriage & Family Therapist in San Diego, California. Licensed in California. Registered with an NPI since 2006.

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.

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Practice location Address checks out

1202 Morena Blvd Ste 300
San Diego, CA 92110-3844
Phone: (619) 312-5490
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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 MFC39347 (CA)

Record details

NPI number1912072661
Entity typeIndividual (Type 1)
GenderMale
Credentials MFT
Sole proprietorNo
NPI enumeratedNovember 21, 2006
Last updated in NPPESMarch 3, 2011

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