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DIANA L. GUEST MFT
NPI 1659506384
Marriage & Family Therapist in San Diego, CA

Active since May 26, 2009
1767 GRAND AVE, SUITE 4, SAN DIEGO, CA 92109(858) 274-1662(858) 273-9410 Get Directions Write a Review

NPPES record last updated: May 26, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Diana L. Guest Mft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA L. GUEST MFT (NPI 1659506384) is an individual marriage & family therapist in San Diego, California, licensed in California (MFC31177) and active in the NPI registry since May 2009.

NPPES Registry Identity

NPI1659506384
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameDIANA L. GUESTCredential: MFT
Location Address1767 GRAND AVE, SUITE 4San Diego, CA 92109-4400
Mailing Address1767 Grand Ave, Suite 4San Diego, CA 92109-4400 · (858) 274-1662 · Fax (858) 273-9410
Phone(858) 274-1662
Fax(858) 273-9410
Sole ProprietorYes
Enumeration DateMay 26, 2009
✔ NPI 1659506384 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · MFC31177
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
1767 GRAND AVE, San Diego, CA 92109
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Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CINDY ANNE PIRAZZINI MFT
Marriage & Family Therapist
1767 GRAND AVE, STE 4
SAN DIEGO, CA 92109
San Diego County (877) 293-8123
MS. DIANE DEVORE LCSW
Social Worker (Clinical)
1767 GRAND AVE, SUITE 4
SAN DIEGO, CA 92109
San Diego County (858) 444-7126
DR. BARBARA ANNE THOMSON MFT
Marriage & Family Therapist
1767 GRAND AVE, #4
SAN DIEGO, CA 92109
San Diego County (760) 944-7448
DR. CAROL RUSS PH.D.
Psychologist (Clinical)
1767 GRAND AVE, SUITE 4
PACIFIC BEACH, CA 92109
San Diego County (858) 755-8206
MRS. DANA PETERS MFT
Marriage & Family Therapist
1767 GRAND AVE, SUITE 4
SAN DIEGO, CA 92109
San Diego County (858) 333-7980

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Guest's NPI number?

The NPI number for Diana Guest is 1659506384. It was assigned to this individual provider in the NPPES registry on May 26, 2009.

Where is Diana Guest located?

Diana Guest practices at 1767 Grand Ave Suite 4, San Diego, CA 92109. The listed phone number is (858) 274-1662.

What is Diana Guest's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Diana Guest was last updated on May 26, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.