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MAGGIE YAU MD
NPI 1184129355
Pediatrics in St Johnsbury, VT

Active since March 28, 2018PECOS Enrolled
97 SHERMAN DR STE 1, ST JOHNSBURY, VT 05819(802) 748-5131(802) 748-4237 Get Directions Write a Review

NPPES record last updated: April 2, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 2, 2026, Aug 16, 2021, Mar 28, 2018 (3 updates tracked since 2018).

About Maggie Yau Md NPPES

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

MAGGIE YAU MD (NPI 1184129355) is an individual pediatrics provider in St Johnsbury, Vermont, licensed in Vermont (042.0018620) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184129355
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMAGGIE YAUCredential: MD
Location Address97 SHERMAN DR STE 1St Johnsbury, VT 05819-9280
Mailing AddressPo Box 905St Johnsbury, VT 05819-0905 · (802) 748-5131 · Fax (802) 748-4237
Phone(802) 748-5131
Fax(802) 748-4237
Sole ProprietorNo
Enumeration DateMarch 28, 2018
Last NPPES UpdateApril 2, 20263 updates tracked since enumeration
NPPES CertifiedApril 2, 2026
✔ NPI 1184129355 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in VT · 042.0018620
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.
97 SHERMAN DR STE 1, St Johnsbury, VT 05819
Open in Google Maps ↗

Other Identifiers 2

Medicaid6720308VT
Medicaid3149948NH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter from NH Healthy Families, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maggie Yau 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 Maggie Yau reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northeastern Vermont Regional Hospital, Inc
Same address
Primary Care
97 SHERMAN DRIVE
St Johnsbury, VT 05819
  • Reassigned Medicare billing, Vermont enrollment
  • 15 clinicians in this Medicare group
NPI 1487732301 (802) 748-5131

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 05819 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
$85.89 typical visit price
range $55.80 – $168.48
Typical copayment $21.47 (range $13.95 – $42.12)
Most-billed visit code 99203
Established Patient
$98.40 typical visit price
range $18.08 – $137.84
Typical copayment $24.60 (range $4.52 – $34.46)
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

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

DR. ALEXA C KEMENY MD
Pediatrics
97 SHERMAN DR STE 1
ST JOHNSBURY, VT 05819
Caledonia County (802) 748-5131

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 Maggie Yau's NPI number?

The NPI number for Maggie Yau is 1184129355. It was assigned to this individual provider in the NPPES registry on March 28, 2018.

Where is Maggie Yau located?

Maggie Yau practices at 97 Sherman Dr Ste 1, St Johnsbury, VT 05819. The listed phone number is (802) 748-5131.

What is Maggie Yau's specialty?

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

Is Maggie Yau enrolled in Medicare?

Yes. Maggie Yau is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maggie Yau's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maggie Yau reassigns Medicare benefits to Northeastern Vermont Regional Hospital, Inc (St Johnsbury, VT). 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 Maggie Yau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maggie Yau accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter from NH Healthy Families, Ambetter of Alabama and Ambetter of North Carolina and 3 other insurers list Maggie Yau 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 Maggie Yau was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.