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DR. MARGARET ANASTASIA CONNOLLY MD
NPI 1790942589
Pediatrics in Stony Brook, NY

Active since May 20, 2008PECOS Enrolled
11 TH FLOOR HEALTH SCIENCES CTR, STONY BROOK CHILDREN'S HOSPITAL, STONY BROOK, NY 11794(631) 444-7884(631) 444-8968 Get Directions Write a Review

NPPES record last updated: April 21, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Margaret Anastasia Connolly Md NPPES

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

DR. MARGARET ANASTASIA CONNOLLY MD (NPI 1790942589) is an individual pediatrics provider in Stony Brook, New York, licensed in New York (257913) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790942589
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MARGARET ANASTASIA CONNOLLYCredential: MD
Location Address11 TH FLOOR HEALTH SCIENCES CTR, STONY BROOK CHILDREN'S HOSPITALStony Brook, NY 11794-8111
Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-0650
Phone(631) 444-7884
Fax(631) 444-8968
Sole ProprietorNo
Enumeration DateMay 20, 2008
Last NPPES UpdateApril 21, 2015
✔ NPI 1790942589 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · 257913
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.
11 TH FLOOR HEALTH SCIENCES CTR, Stony Brook, NY 11794
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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)

Dr. Margaret Anastasia Connolly 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.

Medicare Billing Reassignment

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

Stony Brook Children's Service, University Faculty Practice Corporatio
0.5 mi
Pediatrics
SUNY @ STONY BROOK, HSC, L11, RM 020
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 191 clinicians in this Medicare group
NPI 1083660575 (631) 444-1362

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 11794 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

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 Connolly's NPI number?

The NPI number for Margaret Connolly is 1790942589. It was assigned to this individual provider in the NPPES registry on May 20, 2008.

Where is Margaret Connolly located?

Margaret Connolly practices at 11 Th Floor Health Sciences Ctr Stony Brook Children's Hospital, Stony Brook, NY 11794. The listed phone number is (631) 444-7884.

What is Margaret Connolly's specialty?

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

Is Margaret Connolly enrolled in Medicare?

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

Which organization bills Medicare for Margaret Connolly's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Connolly reassigns Medicare benefits to Stony Brook Children's Service, University Faculty Practice Corporatio (Stony Brook, NY). 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 Margaret Connolly'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 Margaret Connolly was last updated on April 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.