Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1720051980 Individual Practitioner Male Practitioner

Dr. David William Katz , PhD

Psychologist • Lake Oswego, OR

Professional Overview & Biography Verified Profile Summary

Dr. David Katz, PhD is a registered healthcare professional specializing in Psychologist in Lake Oswego, OR. Practice services are available at 4550 KRUSE WAY under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4550 Kruse Way
Suite 225

Lake Oswego, OR 970353594

Telephone 5038031390

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Lake Oswego, OR

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 23.3 Yrs
State Avg: 18.9 Yrs
Regional Practice Density
21 Specialists

Practicing in Lake Oswego, OR (780 Statewide)

Telehealth Adoption Rate
14.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License OR 0732

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Psychologist - Clinical

NUCC Taxonomy Code: 103TC0700X

State License OR 0732

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.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

7 Associated Practitioners
Dr. Cheryn Grant , DO

Psychiatry & Neurology - Psychiatry

NPI 1053335414

Doctor of Osteopathic Medicine (D.O.)

Deborah Mertlich , LCSW

Social Worker - Clinical

NPI 1366564338

Licensed Clinical Social Worker

NPI 1467022004

Doctor of Nursing Practice

Dr. Jean Linscott , PhD

Psychologist - Clinical

NPI 1710994785

Doctor of Philosophy (Ph.D.)

NPI 1750315891

Doctor of Philosophy (Ph.D.)

Jean Pelosi , LCSW

Social Worker - Clinical

NPI 1831204767

Licensed Clinical Social Worker

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 11, 2025

Psychologist (License #0732 in OR)

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 4550 KRUSE WAY, SUITE 225, LAKE OSWEGO, OR 970353594 (Tel: 5038031390)

📍
Updated Business Mailing Address July 08, 2007

Registered at 5441 BAY CREEK DR, LAKE OSWEGO, OR 970355703 (Tel: 5038031390)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as DAVID KATZ, PH.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Psychologist (License #0732 in OR)

🟢
Initial NPI Registration & Enumeration February 08, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1720051980
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 08, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

5441 Bay Creek Dr

Lake Oswego, OR 970355703

Phone: 5038031390

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.