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MARGARET O.P. FALLON MD
NPI 1780104968
Pediatrics in Waltham, MA

Active since June 20, 2017PECOS Enrolled
52 SECOND AVE, WALTHAM, MA 02451(617) 726-2000 Get Directions Write a Review

NPPES record last updated: April 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 9, 2020, Jun 20, 2017 (2 updates tracked since 2017).

About Margaret O.p. Fallon Md NPPES

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

MARGARET O.P. FALLON MD (NPI 1780104968) is an individual pediatrics provider in Waltham, Massachusetts, licensed in Massachusetts (271340) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780104968
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARGARET O.P. FALLONCredential: MD
Location Address52 SECOND AVEWaltham, MA 02451-1127
Mailing Address55 Fruit StBoston, MA 02114-2621 · (617) 726-2000
Phone(617) 726-2000
Sole ProprietorNo
Enumeration DateJune 20, 2017
Last NPPES UpdateApril 21, 20252 updates tracked since enumeration
NPPES CertifiedApril 21, 2025
✔ NPI 1780104968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MA · 271340
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.
52 SECOND AVE, Waltham, MA 02451
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Margaret O.p. Fallon Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02451 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 7

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

REBECCA EVE O'DONNELL BLAKE PA-C
Physician Assistant
52 SECOND AVE
WALTHAM, MA 02451
Middlesex County (781) 487-6181
MRS. CRISTIN M LAVITA
Registered Nurse (Pediatrics)
52 SECOND AVE
WALTHAM, MA 02451
Middlesex County (781) 487-4340
YIMING YU PA
Physician Assistant
52 SECOND AVE
WALTHAM, MA 02451
Middlesex County (617) 726-2000
MICHAEL ANDREW VROLYK
Physician Assistant
52 SECOND AVE
WALTHAM, MA 02451
Middlesex County (177) 249-3386
ROBERT MARC SCHAINFELD DO
Internal Medicine
52 SECOND AVE, STE 2100
WALTHAM, MA 02451
Middlesex County (781) 487-2840
NATASHA D EDWARDS FNP
Nurse Practitioner (Family)
52 SECOND AVE
WALTHAM, MA 02451
Middlesex County (781) 487-4040
DR. MATTHEW ANTONIO DIMATTEO DNP, FNP-BC
Nurse Practitioner (Family)
52 SECOND AVE
WALTHAM, MA 02451
Middlesex County (781) 487-6006

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 Margaret Fallon's NPI number?

The NPI number for Margaret Fallon is 1780104968. It was assigned to this individual provider in the NPPES registry on June 20, 2017.

Where is Margaret Fallon located?

Margaret Fallon practices at 52 Second Ave, Waltham, MA 02451. The listed phone number is (617) 726-2000.

What is Margaret Fallon's specialty?

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

Is Margaret Fallon enrolled in Medicare?

Yes. Margaret Fallon is registered in the Medicare PECOS enrollment system.

What insurance does Margaret Fallon accept?

Health plans from Anthem Blue Cross and Blue Shield list Margaret Fallon 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 Margaret Fallon was last updated on April 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.