MATTHEW G MASIELLO (MD) – Pediatrics Physician, NPI 1720083892

MATTHEW G MASIELLO (MD) is a healthcare provider. based in Boston, Massachusetts. specializing in Pediatrics Physician. They hold the professional credentials MD. They hold a License No. MD048546L (PA). The NPI Number for MATTHEW G MASIELLO (MD) is 1720083892

Main info

Male
Name
MATTHEW G MASIELLO (MD)
NPI
1720083892
Phone
(800) 225-8885
Address
PO BOX 415348
Enumeration Date
16 June 2005
Last Update Date
9 November 2020

Contacts

Secure Messaging
mmasiello23242@UmassMemorial.direct-ci.com
FHIR Endpoint
https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness85
Years active:20State licenses:2Other namesUpdated within 12 months

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Provider Addresses for MATTHEW G MASIELLO (MD)

  • PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States

    BOSTON, MA 022415348

    Phone: (800) 225-8885

    Fax: (508) 334-1977

    Type: Mailing

  • Umass Memorial-Healthalliance Hospital, 60, Hospital Road, West Leominster, Leominster, Worcester County, Massachusetts, 01453, United States

    LEOMINSTER, MA 014532205

    Phone: (978) 466-2257

    Fax: (978) 466-2291

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2017-01-18

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20170118002658IPediatric MedicineMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02241)

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Reviews

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Frequently asked questions

Can I cross-check MATTHEW G MASIELLO (MD) using NPI 1720083892?
NPI 1720083892 belongs to MATTHEW G MASIELLO (MD); compare other details if you need extra assurance.
Active or inactive — what applies to MATTHEW G MASIELLO (MD)?
You should see MATTHEW G MASIELLO (MD) as active in CMS-hosted NPPES data.
What area of care is associated with MATTHEW G MASIELLO (MD)?
MATTHEW G MASIELLO (MD)'s record emphasizes Pediatrics Physician. Clinical services aligned with this taxonomy classification.
Where in Massachusetts is MATTHEW G MASIELLO (MD) registered?
Use Boston, Massachusetts as the headline location for MATTHEW G MASIELLO (MD) here.
Can I trust this NPI listing for MATTHEW G MASIELLO (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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