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

Lon Hamilton Jr., PHD

Individual provider Psychologist · NPI 1740424902

Lon Hamilton Jr., PHD is a Psychologist in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2009.

Licensed in
DC
In the registry since
2009
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3502 18th St NE
Washington, DC 20018-2738
Phone: (240) 533-6657
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PRC608 (DC)

Record details

NPI number1740424902
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 30, 2009
Last updated in NPPESSeptember 5, 2022
Certification dateSeptember 5, 2022

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