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

Marissa Anne Sylvia, FNP

Individual provider Family Nurse Practitioner · NPI 1609746940

Marissa Anne Sylvia, FNP is a Nurse Practitioner in Boston, Massachusetts. Qualified in 2024, 2 years ago. Practices with Children's Hospital Radiology Foundation, Inc, a 58-clinician group. Licensed in Massachusetts.

Years since qualifying
2
Licensed in
MA
In the registry since
2025
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN2314857 (MA)

Record details

NPI number1609746940
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedNovember 11, 2025
Last updated in NPPESFebruary 18, 2026
Certification dateFebruary 18, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Children'S Hospital Radiology Foundation, Inc. — 58 clinicians
Accepts Medicare assignment Not indicated

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