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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARISSA E PARRILLO DO
NPI 1013412659
Pediatrics - Pediatric Critical Care Medicine in Boston, MA

Active since March 27, 2018PECOS Enrolled
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 30, 2026, Sep 17, 2025, Sep 10, 2025 and 2 more (5 updates tracked since 2018).

About Marissa E Parrillo Do NPPES

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

MARISSA E PARRILLO DO (NPI 1013412659) is an individual pediatric critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (287119) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013412659
Entity TypeIndividualFemale
Primary Taxonomy2080P0203X
Provider Legal NameMARISSA E PARRILLOCredential: DO
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Phone(617) 355-6000
Sole ProprietorNo
Enumeration DateMarch 27, 2018
Last NPPES UpdateJuly 30, 20265 updates tracked since enumeration
NPPES CertifiedJuly 30, 2026
✔ NPI 1013412659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0203X
License✔ Licensed in MA · 287119
Definition
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
Also ListedPediatricsTaxonomy 208000000X · License 287119 (MA)
Also ListedPediatrics · Hospice and Palliative MedicineTaxonomy 2080H0002X · License 287119 (MA)
300 LONGWOOD AVE, Boston, MA 02115
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Other Identifiers 1

Medicaid110135531AMA

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 E Parrillo Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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 Parrillo's NPI number?

The NPI number for Marissa Parrillo is 1013412659. It was assigned to this individual provider in the NPPES registry on March 27, 2018.

Where is Marissa Parrillo located?

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

What is Marissa Parrillo's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Marissa Parrillo enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Marissa Parrillo was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.