DR. JONATHAN PORTEUS PHD
NPI 1558400796
Psychologist - Group Psychotherapy in Sacramento, CA

Q: What is Jonathan Porteus's NPI number?

The NPI number for Jonathan Porteus is 1558400796. It was assigned to this individual provider in the NPPES registry on February 5, 2007.

Q: What is Jonathan Porteus's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Group Psychotherapy, with taxonomy code 103TP2701X.

Q: When was this NPI record last updated?

The NPPES record for Jonathan Porteus was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.

Active since February 05, 2007

8912 VOLUNTEER LN STE 100, SACRAMENTO, CA 95826(916) 368-3080 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Jonathan Porteus Phd NPPES

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

DR. JONATHAN PORTEUS PHD (NPI 1558400796) is an individual group psychotherapy provider in Sacramento, California, licensed in California (PSY19635) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1558400796

Entity TypeIndividualMale

Primary Taxonomy103TP2701X

Provider Legal NameDR. JONATHAN PORTEUSCredential: PHD

Location Address8912 VOLUNTEER LN STE 100Sacramento, CA 95826-3224

Mailing Address3104 O St # 336Sacramento, CA 95816-6519 · (916) 743-3022

Phone(916) 368-3080

Sole ProprietorNo

Enumeration DateFebruary 5, 2007

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1558400796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyPsychologist · Group PsychotherapyBehavioral Health & Social Service Providers

Taxonomy Code103TP2701X

Licenses✔ Licensed in CA · PSY19635✔ Licensed in NY · 14792

Definition

A psychologist who specializes in group psychology and group psychotherapy that is an evidenced-based specialty that prepares group leaders to identify and capitalize on developmental and healing possibilities embedded in the interpersonal/intrapersonal functioning of individual group members as well as collectively for the group. Emphasis is placed on the use of group dynamics to assist and treat individual group members. The specialty is applicable to all age groups, children, adolescents, adults and older adults, for a wide variety of conditions and concerns, and in numerous and diverse settings.

Also ListedPsychologistTaxonomy 103T00000X · License 14792 (NY), PSY19635 (CA)

Also ListedPsychologist · Addiction (Substance Use Disorder)Taxonomy 103TA0400X · License 14792 (NY), PSY19635 (CA)

Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 14792 (NY), PSY19635 (CA)

Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License PSY19635 (CA), 14792 (NY)

8912 VOLUNTEER LN STE 100, Sacramento, CA 95826

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Other Providers at the Same Location NPPES 7

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

MRS. LYNN ZENDER LCSW

Social Worker (Clinical)