Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mark George Chapin, PHD, LISW

Individual provider Clinical Social Worker · NPI 1710177704

Dr. Mark George Chapin, PHD, LISW is a Clinical Social Worker in Washington, District of Columbia. Licensed in Ohio. Registered with an NPI since 2007.

Licensed in
OH
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
LISW — Licensed Independent Social Worker
A social worker licensed to practise independently.

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Practice location Address may be wrong

The ZIP code does not match the city and state on this record. Call before visiting.

Wramc Bldg 2 Dept OF Social Work 6900 Georgia Ave NW
Washington, DC 20307-0001
Phone: (202) 782-6378
Fax: (202) 782-4922

No coordinates on file. Search this address in Google Maps

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence I-7114 (OH)

Record details

NPI number1710177704
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , LISW
Sole proprietorNo
NPI enumeratedJuly 26, 2007
Last updated in NPPESJuly 26, 2007

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