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

Individual provider Family Nurse Practitioner · NPI 1881060861

Gregory Marcellin, FNP-BC is a Family Nurse Practitioner in Boston, Massachusetts. Works from 2 locations. Licensed in Connecticut and Massachusetts.

Licensed in
CT, MA
In the registry since
2015
Specialties on file
2
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

1601 Washington St
Boston, MA 02118-1951
Phone: (617) 425-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1 Portsmouth Ave, Stratham, NH 03885-2585 — (603) 772-3600

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN2290802 (MA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 6225 (CT)

Record details

NPI number1881060861
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP-BC
Sole proprietorNo
NPI enumeratedAugust 13, 2015
Last updated in NPPESNovember 16, 2023
Certification dateNovember 16, 2023

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