Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Justin R Harker

Individual provider Counselor · NPI 1114605672

Justin R Harker is a Clinical Psychologist in Rockville, Maryland. Qualified in 2025, 1 year ago. Licensed in Maryland.

Years since qualifying
1
Licensed in
MD
In the registry since
2023
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Practice location Address checks out

9707 Key West Ave Ste 100
Rockville, MD 20850-3992
Phone: (240) 750-6467
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X · Licence A0791 (MD)

Record details

NPI number1114605672
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 6, 2023
Last updated in NPPESJuly 6, 2023
Certification dateJuly 6, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Accepts Medicare assignment Not indicated

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