Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY S BRIGGS APRN
NPI 1821642786
Nurse Practitioner - Pediatrics in Fairfield, CT

Active since July 30, 2019PECOS Enrolled
50 UNQUOWA PL, FAIRFIELD, CT 06824(203) 638-3394 Get Directions Write a Review

NPPES record last updated: August 31, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 31, 2026, Jul 13, 2026, Jul 30, 2019 (3 updates tracked since 2019).

About Mary S Briggs Aprn NPPES

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

MARY S BRIGGS APRN (NPI 1821642786) is an individual pediatrics provider in Fairfield, Connecticut, licensed in Connecticut (8350) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Mamaroneck.

NPPES Registry Identity

NPI1821642786
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameMARY S BRIGGSCredential: APRN
Location Address50 UNQUOWA PLFairfield, CT 06824-5014
Mailing Address38 Fern Valley RdWeston, CT 06883-1905 · (908) 447-4699
Sole ProprietorNo
Enumeration DateJuly 30, 2019
Last NPPES UpdateAugust 31, 20263 updates tracked since enumeration
NPPES CertifiedAugust 31, 2026
✔ NPI 1821642786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
Licenses✔ Licensed in CT · 8350✔ Licensed in NY · 383993
50 UNQUOWA PL, Fairfield, CT 06824

Secondary Practice Location 1

Location 1620 E Boston Post RdMamaroneck, NY 10543-3741 · Phone (914) 777-5437

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary S Briggs Aprn 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 Reassignments

2

Medicare enrollment records show Mary Briggs reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Medicine
30 SHELBURNE RD
Stamford, CT 06902
  • Reassigned Medicare billing, Connecticut enrollment
  • 63 clinicians in this Medicare group
Emergency Medicine
435 LEWIS AVE
Meriden, CT 06451
  • Reassigned Medicare billing, Connecticut enrollment
  • 69 clinicians in this Medicare group

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 06824 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
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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 3

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

Nurse Practitioner (Family)
50 UNQUOWA PL
FAIRFIELD, CT 06824
Nurse Practitioner (Pediatrics)
50 UNQUOWA PL
FAIRFIELD, CT 06824
Pediatrics
50 UNQUOWA PL
FAIRFIELD, CT 06824

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 Mary Briggs's NPI number?

The NPI number for Mary Briggs is 1821642786. It was assigned to this individual provider in the NPPES registry on July 30, 2019.

Where is Mary Briggs located?

Mary Briggs practices at 50 Unquowa Pl, Fairfield, CT 06824. The listed phone number is (203) 638-3394.

What is Mary Briggs's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Mary Briggs enrolled in Medicare?

Yes. Mary Briggs is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mary Briggs's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Briggs reassigns Medicare benefits to 2 organizations: Emergency Medicine Physicians Of Fairfield County, LLC (Stamford, CT) and Emergency Medicine Physicians Of New Haven County,llc (Meriden, CT). Each 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 Mary Briggs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Briggs accept?

Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Mary Briggs 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 Mary Briggs was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.