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DR. JUSTIN COLLMANN PH.D.
NPI 1386017754
Psychologist - Cognitive & Behavioral in Sebastopol, CA

Active since November 07, 2015
435 PETALUMA AVE, SUITE 110E, SEBASTOPOL, CA 95472(707) 536-6956 Get Directions Write a Review

NPPES record last updated: November 7, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Justin Collmann Ph.d. NPPES

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

DR. JUSTIN COLLMANN PH.D. (NPI 1386017754) is an individual cognitive & behavioral provider in Sebastopol, California, licensed in California (27539) and active in the NPI registry since November 2015.

NPPES Registry Identity

NPI1386017754
Entity TypeIndividualMale
Primary Taxonomy103TB0200X
Provider Legal NameDR. JUSTIN COLLMANNCredential: PH.D.
Location Address435 PETALUMA AVE, SUITE 110ESebastopol, CA 95472-4277
Mailing Address1152 Prunetree CtSanta Rosa, CA 95401-4984 · (707) 536-6956
Phone(707) 536-6956
Sole ProprietorYes
Enumeration DateNovember 7, 2015
✔ NPI 1386017754 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Cognitive & BehavioralBehavioral Health & Social Service Providers
Taxonomy Code103TB0200X
License✔ Licensed in CA · 27539
Definition
A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.
435 PETALUMA AVE, Sebastopol, CA 95472
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Other Providers at the Same Location NPPES 8

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

ALLIE M ANDRUS MCCANN MFT, ATR-BC
Marriage & Family Therapist
435 PETALUMA AVE, #140
SEBASTOPOL, CA 95472
Sonoma County (707) 219-8484
MS. MARCY JANE BASEL L.AC.
Acupuncturist
435 PETALUMA AVE, SUITE 120
SEBASTOPOL, CA 95472
Sonoma County (707) 824-8747
SALLY CRISS LAC
Acupuncturist
435 PETALUMA AVE, SUITE 124
SEBASTOPOL, CA 95472
Sonoma County (707) 823-6565
MS. JANEECE FIELDS LMFT
Marriage & Family Therapist
435 PETALUMA AVE
SEBASTOPOL, CA 95472
Sonoma County (808) 342-5037
MR. DAVID BERNARR WALKER LAC.
Acupuncturist
435 PETALUMA AVE, SUITE 130
SEBASTOPOL, CA 95472
Sonoma County (707) 829-1228
DR. ERIN KAY RILEY PH.D.
Psychologist
435 PETALUMA AVE, SUITE #140
SEBASTOPOL, CA 95472
Sonoma County (707) 829-2509
HILL PARK INTEGRATIVE MEDICAL CENTER
General Practice
435 PETALUMA AVE, SUITE 150
SEBASTOPOL, CA 95472
Sonoma County (707) 861-7300
MR. PAUL GUSTAV TAMMINEN LCSW
Social Worker (Clinical)
435 PETALUMA AVE, SUITE 140
SEBASTOPOL, CA 95472
Sonoma County (707) 823-9950

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 Justin Collmann's NPI number?

The NPI number for Justin Collmann is 1386017754. It was assigned to this individual provider in the NPPES registry on November 7, 2015.

Where is Justin Collmann located?

Justin Collmann practices at 435 Petaluma Ave Suite 110E, Sebastopol, CA 95472. The listed phone number is (707) 536-6956.

What is Justin Collmann's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Cognitive & Behavioral, with taxonomy code 103TB0200X.

When was this NPI record last updated?

The NPPES record for Justin Collmann was last updated on November 7, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.