Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1134119126 Individual Practitioner Male Practitioner

Dr. Mark A Rush , PhD

Psychologist • Denver, CO

Professional Overview & Biography Verified Profile Summary

Dr. Mark Rush, PhD is a registered healthcare professional specializing in Psychologist in Denver, CO. Practice services are available at 673 GRANT ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

673 Grant St

Denver, CO 802033506

Telephone 3039496297
Fax 3034641413
Associated Practice Facility / Clinic
🏢 Amy Gorsline, Psyd, Pllc Facility NPI 1285751875

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Denver, CO

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 23.5 Yrs
State Avg: 22.9 Yrs
Regional Practice Density
283 Specialists

Practicing in Denver, CO (1035 Statewide)

Telehealth Adoption Rate
4.6% 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 CO 1934

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 - Addiction (Substance Use Disorder)

NUCC Taxonomy Code: 103TA0400X

State License CO 1934

A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

Psychologist - Cognitive & Behavioral

NUCC Taxonomy Code: 103TB0200X

State License CO 1934

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.

Psychologist - Clinical

NUCC Taxonomy Code: 103TC0700X

State License CO 1934

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.

Psychologist - Counseling

NUCC Taxonomy Code: 103TC1900X

State License CO 1934

A psychologist who specializes in general practice and health service. It focuses on how people function both personally and in their relationships at all ages. Counseling psychology addresses the emotional, social, work, school and physical health concerns people may have at different stages in their lives, focusing on typical life stresses and more severe issues with which people may struggle as individuals and as a part of families, groups and organizations. Counseling psychologists help people with physical, emotional and mental health issues improve their sense of well-being, alleviate feelings of distress and resolve crises. They also provide assessment, diagnosis, and treatment of more severe psychological symptoms.

Psychologist - Family

NUCC Taxonomy Code: 103TF0000X

State License CO 1934

A psychologist whose specialty is founded on principles of systems theory with the interpersonal system of the family the focus of assessment, intervention and research.

Practice Associates & Co-Workers

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

3 Associated Practitioners
Dr. Elisabeth Komlos-Hrobsky , PhD

Psychologist - Clinical Child & Adolescent

NPI 1144366501

Doctor of Philosophy (Ph.D.)

Angela Ziady , BA

Counselor - Mental Health

NPI 1659593879

Bachelor of Arts

Shannon Huntsberry , MA, LPC

Counselor - Professional

NPI 1982111654

Master of Arts, Licensed Professional Counselor

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 #1934 in CO)

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Business Mailing Address July 08, 2007

Registered at 673 GRANT ST, DENVER, CO 802033506 (Tel: 3039496297)

📍
Updated Practice Location July 08, 2007

Registered at 673 GRANT ST, DENVER, CO 802033506 (Tel: 3039496297)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as MARK RUSH, PH.D.

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

Psychologist (License #1934 in CO)

🟢
Initial NPI Registration & Enumeration October 21, 2005

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: 1134119126
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 21, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

673 Grant St

Denver, CO 802033506

Phone: 3039496297

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.