Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1598737629 Individual Practitioner Male Practitioner

Dr. Gregory Harry Powell , PhD

Psychologist • Frederick, MD

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Powell, PhD is a registered healthcare professional specializing in Psychologist in Frederick, MD. Practice services are available at 97 THOMAS JOHNSON DR under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

97 Thomas Johnson Dr
Ste 202

Frederick, MD 21702

Telephone 3016956455
Fax 3016956456
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Frederick, MD

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 29.0 Yrs
State Avg: 27.5 Yrs
Regional Practice Density
28 Specialists

Practicing in Frederick, MD (1248 Statewide)

Telehealth Adoption Rate
17.9% 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 MD 2236

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

4 Associated Practitioners
Kevin Lawlor

Psychologist

NPI 1154393270
NPI 1164494282

Doctor of Psychology (Psy.D.)

NPI 1235101361

Doctor of Psychology (Psy.D.)

Julieann Ipsan , LCSW-C

Social Worker - Clinical

NPI 1366057028

Licensed Clinical Social Worker - Certified

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 97 THOMAS JOHNSON DR, STE 202, FREDERICK, MD 21702 (Tel: 3016956455)

📍
Updated Business Mailing Address July 08, 2007

Registered at 97 THOMAS JOHNSON DR, STE 202, FREDERICK, MD 21702 (Tel: 3016956455)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as GREGORY POWELL, PHD

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

Psychologist (License #2236 in MD)

🟢
Initial NPI Registration & Enumeration February 02, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Gregory Powell. Be the first to share your experience!

Sign in to leave a review for Dr. Gregory Powell

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1598737629
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 02, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

97 Thomas Johnson Dr, Ste 202

Frederick, MD 21702

Phone: 3016956455

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.