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

Marissa Harrington, LCSW

Individual provider Social Worker · NPI 1831727999

Marissa Harrington, LCSW is a Clinical Social Worker in Hampton Bays, New York. Qualified in 2019, 7 years ago. Practices with Meeting House Lane Medical Practice PC, a 123-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
7
Licensed in
NY
In the registry since
2020
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

182 W Montauk Hwy Bldg B Ste B
Hampton Bays, NY 11946
Phone: (631) 594-3910
Fax: (631) 594-3911
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 518 Montauk Hwy Ste 102, Amagansett, NY 11930-2110 — (631) 267-5373
  • 1444 5th Ave, Bay Shore, NY 11706-4147 — (631) 647-3100
  • 325 Meeting House Lane, Southampton, NY 11968 — (631) 283-2100

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 097765 (NY)
Social Worker Taxonomy 104100000X · Licence 108856-01 (NY)

Record details

NPI number1831727999
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedApril 1, 2020
Last updated in NPPESJanuary 23, 2025
Certification dateJanuary 23, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Meeting House Lane Medical Practice Pc — 123 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Hampton Bays