Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Martin Chamberlain, PHD

Individual provider Clinical Psychologist · NPI 1114137098

Dr. John Martin Chamberlain, PHD is a Clinical Psychologist in Silver Spring, Maryland. Practices as a sole proprietor. Licensed in District of Columbia and Maryland.

Licensed in
DC, MD
In the registry since
2007
Specialties on file
2
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

8720 Georgia Ave Ste 1000
Silver Spring, MD 20910-3638
Phone: (301) 495-0266
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 3623 (MD)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY1000161 (DC)

Record details

NPI number1114137098
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 22, 2007
Last updated in NPPESOctober 14, 2010
Mailing address8720 Georgia Ave, Suite 1000, Silver Spring, MD 20910-3638

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