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

Individual provider Clinical Social Worker · NPI 1578732863

Dr. Mark Peter Jacobsen, PHD, LICSW is a Clinical Social Worker in Washington, District of Columbia. Practices as a sole proprietor. Licensed in District of Columbia, Maryland and Virginia.

Licensed in
DC, MD, VA
In the registry since
2008
Specialties on file
3
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

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Practice location Address checks out

2607 Connecticut Ave NW
Washington, DC 20008-1522
Phone: (703) 521-1710
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LC303458 (DC)
Clinical Social Worker Taxonomy 1041C0700X · Licence 06666 (MD)
Clinical Social Worker Taxonomy 1041C0700X · Licence 0904004705 (VA)

Record details

NPI number1578732863
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , LICSW
Sole proprietorYes
NPI enumeratedFebruary 21, 2008
Last updated in NPPESFebruary 21, 2008

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