DR. WILLIAM JOSEPH FOSTER JR. M.D., PH.D.
NPI 1356390462
Ophthalmology - Retina Specialist in Montreal, QUEBEC

Q: What is William Foster's NPI number?

The NPI number for William Foster is 1356390462. It was assigned to this individual provider in the NPPES registry on May 8, 2006.

Q: What is William Foster's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Q: When was this NPI record last updated?

The NPPES record for William Foster was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since May 08, 2006PECOS EnrolledAccepts Medicare Assignment

1100 AVENUE BEAUMONT, SUITE 305, MONTREAL, QUEBEC H3P 3 Get Directions Write a Review

NPPES record last updated: December 16, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Dec 16, 2025, Mar 21, 2017, Feb 21, 2017 (3 updates tracked since 2017).

On this page

About Dr. William Joseph Foster Jr. M.d., Ph.d. NPPES

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

DR. WILLIAM JOSEPH FOSTER JR. M.D., PH.D. (NPI 1356390462) is an individual retina specialist in Montreal, QUEBEC, licensed in Vermont (042.0016623) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Newport, and is a graduate of Duke University School Of Medicine (1999).

NPPES Registry Identity

NPI1356390462

Entity TypeIndividualMale

Primary Taxonomy207WX0107X

Provider Legal NameDR. WILLIAM JOSEPH FOSTER JR.Credential: M.D., PH.D.

Location Address1100 AVENUE BEAUMONT, SUITE 305Montreal, QUEBEC H3P 3H5

Mailing Address2207 Concord Pike # 166Wilmington, DE 19803-2908 · (855) 250-3937 · Fax (855) 250-5500

Sole ProprietorNo

Medical School CMSDuke University School Of MedicineGraduated 1999

Enumeration DateMay 8, 2006

Last NPPES UpdateDecember 16, 20253 updates tracked since enumeration

NPPES CertifiedDecember 16, 2025

✔ NPI 1356390462 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0107X

Licenses✔ Licensed in VT · 042.0016623✔ Licensed in MD · D72604✔ Licensed in PA · MD443007✔ Licensed in CA · A83251✔ Licensed in NY · 239580✔ Licensed in MI · 4301093303✔ Licensed in DE · C1-0009712

Definition

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

1100 AVENUE BEAUMONT, Montreal, QUEBEC H3P 3

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Secondary Practice Location 1

Location 15452 US-5, Suite HNewport, VT 05855 · Phone (855) 250-3937 · Fax (855) 250-5500

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William Joseph Foster Jr. M.d., Ph.d. 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 ID9335100932

PECOS Enrollment IDI20260202000322

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.

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 Foster's NPI number?

The NPI number for William Foster is 1356390462. It was assigned to this individual provider in the NPPES registry on May 8, 2006.

Where is William Foster located?

William Foster practices at 1100 Avenue Beaumont Suite 305, Montreal, QUEBEC H3P 3.

What is William Foster's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is William Foster enrolled in Medicare?

Yes. William Foster 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.

When was this NPI record last updated?

The NPPES record for William Foster was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.