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CAROLYN LANDRY MARZILLI
NPI 1700367331
Social Worker - Clinical in Newton, MA

Active since August 22, 2018PECOS Enrolled
2014 WASHINGTON ST, NEWTON, MA 02462(508) 975-1897 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 8, 2025, Aug 22, 2018 (2 updates tracked since 2018).

About Carolyn Landry Marzilli NPPES

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

CAROLYN LANDRY MARZILLI (NPI 1700367331) is an individual clinical provider in Newton, Massachusetts, licensed in Massachusetts (118270) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1700367331
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCAROLYN LANDRY MARZILLI
Location Address2014 WASHINGTON STNewton, MA 02462-1607
Mailing Address28 Brown DrWalpole, MA 02081-2712 · (617) 784-1866
Phone(508) 975-1897
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateAugust 22, 2018
Last NPPES UpdateDecember 8, 20252 updates tracked since enumeration
NPPES CertifiedDecember 8, 2025
✔ NPI 1700367331 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MA · 118270
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
2014 WASHINGTON ST, Newton, MA 02462
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Carolyn Landry Marzilli is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4880189653
PECOS Enrollment IDI20251218003538
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.

Medicare Billing Reassignment

Medicare enrollment records show Carolyn Marzilli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grow Healthcare Group PA
1,250 mi
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, Massachusetts enrollment
  • 522 clinicians in this Medicare group
NPI 1245845932 (786) 244-7711

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02462 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
$0.00 typical visit price
range $63.72 – $189.86
Typical copayment $0.00 (range $15.93 – $47.46)
Most-billed visit code NA
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
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.

DR. ANDREA L RUSSO M.D.
Radiology (Radiation Oncology)
2014 WASHINGTON ST
NEWTON, MA 02462
Middlesex County (617) 219-1200
MAUREEN LAVELLE LICSW
Social Worker (Clinical)
2014 WASHINGTON ST
NEWTON, MA 02462
Middlesex County (617) 243-6664
SHALYNN DOHERTY
Physician Assistant
2014 WASHINGTON ST
NEWTON, MA 02462
Middlesex County (617) 831-7100
MR. KEVIN YAN KOENDERS PA-C
Physician Assistant (Surgical)
2014 WASHINGTON ST, DEPARTMENT OF ORTHOPEDICS
NEWTON, MA 02462
Middlesex County (617) 219-1674
NATHAN DANIEL BUCKLEY PA-C
Physician Assistant (Surgical)
2014 WASHINGTON ST
NEWTON, MA 02462
Middlesex County (617) 243-6000
DR. RONALD KENNETH PYE M.D.
Pediatrics (Neonatal-Perinatal Medicine)
2014 WASHINGTON ST, SCN 6 NORTH
NEWTON, MA 02462
Middlesex County (617) 243-6296
DR. TODD EARL ABBOTT M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
2014 WASHINGTON ST, NEWTON-WELLESLEY HOSPITAL
NEWTON, MA 02462
Middlesex County (434) 964-1637
DIANE MARIE POULIN RN,NP
Nurse Practitioner (Adult Health)
2014 WASHINGTON ST, NEWTON WELLESLEY HOSPITAL DEPT. OF ANESTHESIA
NEWTON, MA 02462
Middlesex County (617) 243-6298

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 Carolyn Marzilli's NPI number?

The NPI number for Carolyn Marzilli is 1700367331. It was assigned to this individual provider in the NPPES registry on August 22, 2018.

Where is Carolyn Marzilli located?

Carolyn Marzilli practices at 2014 Washington St, Newton, MA 02462. The listed phone number is (508) 975-1897.

What is Carolyn Marzilli's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Carolyn Marzilli enrolled in Medicare?

Yes. Carolyn Marzilli is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Carolyn Marzilli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn Marzilli reassigns Medicare benefits to Grow Healthcare Group PA (Miami, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Carolyn Marzilli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carolyn Marzilli accept?

Health plans from Harvard Pilgrim Health Care list Carolyn Marzilli as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Carolyn Marzilli was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.