Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1013971167 Individual Practitioner Male Practitioner

Dr. Markham Scott Giblin , PhD

Psychologist • Corvallis, OR

Professional Overview & Biography Verified Profile Summary

Dr. Markham Giblin, PhD is a registered healthcare professional specializing in Psychologist in Corvallis, OR. Practice services are available at 1300 NW HARRISON BLVD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1300 Nw Harrison Blvd
Ste # 140

Corvallis, OR 973305916

Telephone 5417386516
Fax 5417386517
Associated Practice Facility / Clinic
🏢 David A Hart Md Pc Facility NPI 1336680784

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Corvallis, OR

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 17.5 Yrs
State Avg: 18.9 Yrs
Regional Practice Density
29 Specialists

Practicing in Corvallis, OR (780 Statewide)

Telehealth Adoption Rate
24.1% 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 925

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.

Practice Associates & Co-Workers

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

28 Associated Practitioners
Stephen Williams , GRADUATE STUDENT

Counselor - Professional

NPI 1043087737

GRADUATESTUDENT

Dominic Lathos

Counselor - Professional

NPI 1043844848
Brooke Landberg , LPC

Counselor - Mental Health

NPI 1043929045

Licensed Professional Counselor

Jillian Alden , COUNSELING INTERN

Counselor - Professional

NPI 1063288926

COUNSELINGINTERN

Jess Porquez

Counselor - Professional

NPI 1073203006
Veronica Krim

Counselor - Professional

NPI 1144032806

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 1300 NW HARRISON BLVD, STE # 140, CORVALLIS, OR 973305916 (Tel: 5417386516)

📍
Updated Business Mailing Address July 08, 2007

Registered at 1300 NW HARRISON BLVD, STE # 140, CORVALLIS, OR 973305916 (Tel: 5417386516)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as MARKHAM GIBLIN, PHD

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

Psychologist (License #925 in OR)

🟢
Initial NPI Registration & Enumeration April 14, 2006

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: 1013971167
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 14, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

1300 Nw Harrison Blvd, Ste # 140

Corvallis, OR 973305916

Phone: 5417386516

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.