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MATTHEW NAGY MD
NPI 1487356655
Pediatrics in Boston, MA

Active since March 20, 2023PECOS Enrolled
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: August 20, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 20, 2026, Mar 20, 2023 (2 updates tracked since 2023).

About Matthew Nagy Md NPPES

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

MATTHEW NAGY MD (NPI 1487356655) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (1026630) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2023).

NPPES Registry Identity

NPI1487356655
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameMATTHEW NAGYCredential: MD
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 CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 2023
Enumeration DateMarch 20, 2023
Last NPPES UpdateAugust 20, 20262 updates tracked since enumeration
NPPES CertifiedAugust 20, 2026
✔ NPI 1487356655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MA · 1026630
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
300 LONGWOOD AVE, Boston, MA 02115
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Matthew Nagy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3971062944
PECOS Enrollment IDI20260829000361
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 Matthew Nagy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Children's Hospital Pediatric Associates, Inc
Same address
Pediatrics
300 LONGWOOD AVE
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,358 clinicians in this Medicare group
NPI 1457306664 (617) 355-6000

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 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
MRS. LAUREN ASHLEY SHARIS 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 Matthew Nagy's NPI number?

The NPI number for Matthew Nagy is 1487356655. It was assigned to this individual provider in the NPPES registry on March 20, 2023.

Where is Matthew Nagy located?

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

What is Matthew Nagy's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Matthew Nagy enrolled in Medicare?

Yes. Matthew Nagy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Matthew Nagy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Nagy reassigns Medicare benefits to Children's Hospital Pediatric Associates, Inc (Boston, MA). 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 Matthew Nagy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Nagy was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.