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

Marissa O'Connor

Individual provider Social Worker · NPI 1386286896

Marissa O'Connor is a Social Worker in Deer Park, New York. Practices as a sole proprietor and works from 2 locations. Registered with an NPI since 2019.

In the registry since
2019

Practice location Address checks out

770 Grand Blvd Ste 17
Deer Park, NY 11729-5725
Phone: (516) 361-3576
Fax: (631) 392-4358
Show map & directions

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

Additional practice locations (1)

  • 30 Tremont Rd, Lindenhurst, NY 11757-1734 — (516) 361-3576

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1386286896
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedOctober 16, 2019
Last updated in NPPESOctober 16, 2019
Mailing address30 Tremont Rd, Lindenhurst, NY 11757-1734

Other providers in Deer Park