Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. STEPHEN IRA KATZ PH.D.
NPI 1154369015
Psychologist - Clinical in Palo Alto, CA

Active since June 03, 2006
3801 MIRANDA AVE, PALO ALTO, CA 94304(650) 493-5000(650) 496-2504 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Stephen Ira Katz Ph.d. NPPES

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

DR. STEPHEN IRA KATZ PH.D. (NPI 1154369015) is an individual clinical provider in Palo Alto, California, licensed in California (PSY6266) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1154369015
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. STEPHEN IRA KATZCredential: PH.D.
Location Address3801 MIRANDA AVEPalo Alto, CA 94304-1207
Mailing Address3801 Miranda AvePalo Alto, CA 94304-1207 · (650) 493-5000 · Fax (650) 496-2504
Fax(650) 496-2504
Sole ProprietorNo
Enumeration DateJune 3, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1154369015 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License Licensed in CA · PSY6266
Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

3801 MIRANDA AVE, Palo Alto, CA 94304

Other Providers at the Same Location NPPES 20

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

Pharmacist
3801 MIRANDA AVE
PALO ALTO, CA 94304
Psychologist (Clinical)
3801 MIRANDA AVE
PALO ALTO, CA 94304
Pharmacist
3801 MIRANDA AVE
PALO ALTO, CA 94304
Registered Nurse
3801 MIRANDA AVE
PALO ALTO, CA 94304
Internal Medicine
3801 MIRANDA AVE, VA PALO ALTO HEALTH CARE SYSTEM (111STC)
PALO ALTO, CA 94304
Obstetrics & Gynecology
3801 MIRANDA AVE, #112
PALO ALTO, CA 94304
Occupational Therapist
3801 MIRANDA AVE, PMRS (117)
PALO ALTO, CA 94304
Social Worker (Clinical)
3801 MIRANDA AVE, VAPAHCS SOCIAL WORK SERVICE, 122 PA
PALO ALTO, CA 94304

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 Stephen Katz's NPI number?

The NPI number for Stephen Katz is 1154369015. It was assigned to this individual provider in the NPPES registry on June 3, 2006.

Where is Stephen Katz located?

Stephen Katz practices at 3801 Miranda Ave, Palo Alto, CA 94304. The listed phone number is (650) 493-5000.

What is Stephen Katz's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Stephen Katz was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.