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KATHERINE MARIE VAILLANCOURT MD
NPI 1770112260
Family Medicine in Stamford, CT

Active since April 06, 2020PECOS EnrolledAccepts Medicare Assignment
1351 WASHINGTON BLVD, STAMFORD, CT 06902(203) 621-3700(203) 621-3711 Get Directions Write a Review

NPPES record last updated: August 1, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 11, 2023, Apr 6, 2020 (2 updates tracked since 2020).

About Katherine Marie Vaillancourt Md NPPES

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

KATHERINE MARIE VAILLANCOURT MD (NPI 1770112260) is an individual family medicine provider in Stamford, Connecticut, licensed in Connecticut (75322) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1770112260
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameKATHERINE MARIE VAILLANCOURTCredential: MD
Location Address1351 WASHINGTON BLVDStamford, CT 06902-2419
Mailing Address1351 Washington BlvdStamford, CT 06902-2419 · (203) 621-3700 · Fax (203) 621-3711
Phone(203) 621-3700
Fax(203) 621-3711
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateApril 6, 2020
Last NPPES UpdateAugust 1, 20252 updates tracked since enumeration
NPPES CertifiedAugust 1, 2025
✔ NPI 1770112260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CT · 75322
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1351 WASHINGTON BLVD, Stamford, CT 06902
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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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katherine Marie Vaillancourt Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729441423
PECOS Enrollment IDI20230829001043
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 Katherine Vaillancourt reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Optimus Health Care
0.1 mi
Federally Qualified Health Center (FQHC)
780 SUMMER ST
Stamford, CT 06901
  • Reassigned Medicare billing, Connecticut enrollment
  • 132 clinicians in this Medicare group
NPI 1942574082 (203) 388-1611
Stamford Health Medical Group Inc
2.3 mi
General Practice
ONE OMEGA DRIVE, BUILDING 3, 2ND FLOOR
Stamford, CT 06907
  • Reassigned Medicare billing, Connecticut enrollment
  • 496 clinicians in this Medicare group
NPI 1154633980 (203) 276-7447

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 06902 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 20

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

BRIANNA ROBINSON LCSW
Social Worker (Clinical)
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 621-3700
DAISY MOJICA
Dental Hygienist
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 621-3900
MRS. RACHEL TOMSKY LCSW
Social Worker (Clinical)
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 621-3700
CATHERINE FOURNIER LCSW
Social Worker (Clinical)
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 388-1662
STAMFORD INTERNAL MEDICINE, PC
Internal Medicine
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 322-9472
DR. MARIA PRIBIS O.D.
Optometrist
1351 WASHINGTON BLVD, SUITE 101
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 327-5808
ASHLEY ANN TELESCO LCSW
Social Worker (Clinical)
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 388-1566
TANIA WARYCHA LPC
Counselor (Professional)
1351 WASHINGTON BLVD
STAMFORD, CT 06902
Western Connecticut Planning Region (203) 388-1659

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 Katherine Vaillancourt's NPI number?

The NPI number for Katherine Vaillancourt is 1770112260. It was assigned to this individual provider in the NPPES registry on April 6, 2020.

Where is Katherine Vaillancourt located?

Katherine Vaillancourt practices at 1351 Washington Blvd, Stamford, CT 06902. The listed phone number is (203) 621-3700.

What is Katherine Vaillancourt's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Katherine Vaillancourt enrolled in Medicare?

Yes. Katherine Vaillancourt is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Katherine Vaillancourt's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Vaillancourt reassigns Medicare benefits to 2 organizations: Optimus Health Care (Stamford, CT) and Stamford Health Medical Group Inc (Stamford, 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 Katherine Vaillancourt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Vaillancourt accept?

Health plans from Anthem Blue Cross and Blue Shield list Katherine Vaillancourt 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 Katherine Vaillancourt was last updated on August 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.