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

Individual provider Clinical Psychologist · NPI 1497966691

Dr. Melanie Starr Costello, PHD is a Clinical Psychologist in Washington, District of Columbia. Practices as a sole proprietor. Licensed in District of Columbia.

Licensed in
DC
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

1633 Q St NW Ste 200
Washington, DC 20009-6351
Phone: (202) 588-5008
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychoanalysis Psychologist (primary) Taxonomy 103TP0814X · Licence PSY1000193 (DC)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY1000193 (DC)

Record details

NPI number1497966691
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 28, 2007
Last updated in NPPESSeptember 11, 2025

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