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

Individual provider Clinical Social Worker · NPI 1104930247

Erik Marks, LICSW is a Clinical Social Worker in Somerville, Massachusetts. Qualified in 1999, 27 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
27
Licensed in
MA
In the registry since
2006
What do these letters mean?
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

403 Highland Ave Ste 211
Somerville, MA 02144-2530
Phone: (617) 448-9916
Fax: (855) 739-4903
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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 110882 (MA)

Record details

NPI number1104930247
Entity typeIndividual (Type 1)
GenderMale
Credentials LICSW
Sole proprietorYes
NPI enumeratedAugust 18, 2006
Last updated in NPPESAugust 1, 2025
Certification dateAugust 1, 2025
Mailing address872 Mass Ave, Suite 2-1, Cambridge, MA 02139-3073

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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