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

Dr. Gregory A. Grinc, PHD

Individual provider Clinical Psychologist · NPI 1285682575

Dr. Gregory A. Grinc, PHD is a Clinical Psychologist in Washington, District of Columbia. Qualified in 1978, 48 years ago. Accepts Medicare assignment and offers telehealth. Licensed in District of Columbia and Maryland.

Years since qualifying
48
Licensed in
DC, MD
In the registry since
2006
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

1400 20th St NW Ste 114
Washington, DC 20036-5906
Phone: (202) 331-8484
Fax: (202) 478-1717
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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 1027 (DC)
Clinical Psychologist Taxonomy 103TC0700X · Licence 1283 (MD)

Record details

NPI number1285682575
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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