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MARISSA ANNE SYLVIA FNP
NPI 1609746940
Nurse Practitioner - Family in Boston, MA

Active since November 11, 2025PECOS Enrolled
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: February 18, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Marissa Anne Sylvia Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARISSA ANNE SYLVIA FNP (NPI 1609746940) is an individual family provider in Boston, Massachusetts, licensed in Massachusetts (RN2314857) and active in the NPI registry since November 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1609746940
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARISSA ANNE SYLVIACredential: FNP
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Phone(617) 355-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateNovember 11, 2025
Last NPPES UpdateFebruary 18, 2026
NPPES CertifiedFebruary 18, 2026
✔ NPI 1609746940 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MA · RN2314857
300 LONGWOOD AVE, Boston, MA 02115
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marissa Anne Sylvia Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8628559788
PECOS Enrollment IDI20260226000925
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MISS LAUREN ASHLEY MASTERSON P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marissa Sylvia's NPI number?

The NPI number for Marissa Sylvia is 1609746940. It was assigned to this individual provider in the NPPES registry on November 11, 2025.

Where is Marissa Sylvia located?

Marissa Sylvia practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Marissa Sylvia's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marissa Sylvia enrolled in Medicare?

Yes. Marissa Sylvia is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Marissa Sylvia was last updated on February 18, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.