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Active NPI 1841133295 Individual Practitioner Male Practitioner

Dr. Andrew Ryan Devendorf , PhD

Psychologist • Seattle, WA

Professional Overview & Biography Verified Profile Summary

Dr. Andrew Devendorf, PhD is a registered healthcare professional specializing in Psychologist in Seattle, WA. Practice services are available at 4801 RAINIER AVE S under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4801 Rainier Ave S

Seattle, WA 981182181

Telephone 8479462786

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Seattle, WA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 20.5 Yrs
State Avg: 21.7 Yrs
Regional Practice Density
322 Specialists

Practicing in Seattle, WA (1137 Statewide)

Telehealth Adoption Rate
6.2% 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

CMS Verified: 2026-04-10
Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License WA PSYC.PY.61670611

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.

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active April 10, 2026

NPI status registered as active in NPPES database

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Updated Practice Location April 10, 2026

Registered at 4801 RAINIER AVE S, SEATTLE, WA 981182181 (Tel: 8479462786)

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Updated Business Mailing Address April 10, 2026

Registered at 4801 RAINIER AVE S, SEATTLE, WA 981182181 (Tel: 8479462786)

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Provider Name / Credentials Updated April 10, 2026

Recorded as ANDREW DEVENDORF, PHD

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Medical Taxonomy / Specialty Registered (Primary Specialty) April 10, 2026

Psychologist (License #PSYC.PY.61670611 in WA)

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Initial NPI Registration & Enumeration April 10, 2026

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1841133295
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 10, 2026
Last Update: April 10, 2026
Sole Proprietor: Yes

Mailing Address

4801 Rainier Ave S

Seattle, WA 981182181

Phone: 8479462786

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.