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WILLIAM L GAGNON DMD
NPI 1942424767
Dentist in Hudson, NH

Active since April 12, 2007Opted out of Medicare · through Nov 16, 2026
5 GEORGE ST, HUDSON, NH 03051(603) 889-8499(603) 889-2199 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William L Gagnon Dmd NPPES

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

WILLIAM L GAGNON DMD (NPI 1942424767) is an individual dentist in Hudson, New Hampshire, licensed in New Hampshire (NH2001) and active in the NPI registry since April 2007. He has opted out of Medicare through November 16, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1942424767
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameWILLIAM L GAGNONCredential: DMD
Location Address5 GEORGE STHudson, NH 03051
Mailing Address5 George StHudson, NH 03051 · (603) 889-8499 · Fax (603) 889-2199
Phone(603) 889-8499
Fax(603) 889-2199
Sole ProprietorNo
Enumeration DateApril 12, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1942424767 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in NH · NH2001
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
5 GEORGE ST, Hudson, NH 03051
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

William L Gagnon Dmd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from November 16, 2016 through November 16, 2026.

Opt-Out Effective DateNovember 16, 2016
Opt-Out In Effect ThroughNovember 16, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03051 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
$89.14 typical visit price
range $57.75 – $174.26
Typical copayment $22.28 (range $14.43 – $43.56)
Most-billed visit code 99203
Established Patient
$71.85 typical visit price
range $18.70 – $142.15
Typical copayment $17.96 (range $4.67 – $35.53)
Most-billed visit code 99213
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 14

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

HUDSON DENTAL ASSOC PA
Dentist
5 GEORGE ST
HUDSON, NH 03051
Hillsborough County (603) 889-8499
DR. CHRISTINE LONEGAN D.M.D
Dentist (General Practice)
5 GEORGE ST
HUDSON, NH 03051
Hillsborough County (603) 889-8499
MRS. AMY SCHWEIGERT HAYES M.S., CCC-SLP
Speech-Language Pathologist
5 GEORGE ST
HUDSON, NH 03051
Hillsborough County (603) 579-3601
BRENDA L LYNCH
Speech-Language Pathologist
5 GEORGE ST
HUDSON, NH 03051
Hillsborough County (603) 579-3601
MRS. PAULA WELLS MORIN PTA
Physical Therapy Assistant
5 GEORGE ST, SNHRC
HUDSON, NH 03051
Hillsborough County (603) 598-0729
MEGAN TRAPP
Physical Therapist
5 GEORGE ST
HUDSON, NH 03051
Hillsborough County (603) 579-3601
SARAH MARGARET WILDES M.S., CCC-SLP
Speech-Language Pathologist
5 GEORGE ST
HUDSON, NH 03051
Hillsborough County (603) 598-0729
LINDA BOTOS PT
Physical Therapist (Cardiopulmonary)
5 GEORGE ST, SNHRC
HUDSON, NH 03051
Hillsborough County (603) 598-0729

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 William Gagnon's NPI number?

The NPI number for William Gagnon is 1942424767. It was assigned to this individual provider in the NPPES registry on April 12, 2007.

Where is William Gagnon located?

William Gagnon practices at 5 George St, Hudson, NH 03051. The listed phone number is (603) 889-8499.

What is William Gagnon's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is William Gagnon enrolled in Medicare?

No. William Gagnon has opted out of Medicare through November 16, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for William Gagnon was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.