MR. WILLIAM ANDREW TOSICK III
NPI 1679428643
Physician Assistant in Fredericksburg, VA

Q: What is William Tosick's NPI number?

The NPI number for William Tosick is 1679428643. It was assigned to this individual provider in the NPPES registry on March 3, 2026.

Q: What is William Tosick's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for William Tosick was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 March 03, 2026PECOS Enrolled

4600 SPOTSYLVANIA PKWY, FREDERICKSBURG, VA 22408(540) 498-4000 Get Directions Write a Review

NPPES record last updated: March 3, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

On this page

About Mr. William Andrew Tosick Iii NPPES

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

MR. WILLIAM ANDREW TOSICK III (NPI 1679428643) is an individual physician assistant in Fredericksburg, Virginia and active in the NPI registry since March 2026. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1679428643

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameMR. WILLIAM ANDREW TOSICK III

Location Address4600 SPOTSYLVANIA PKWYFredericksburg, VA 22408-7762

Mailing Address4600 Spotsylvania PkwyFredericksburg, VA 22408-7762

Phone(540) 498-4000

Sole ProprietorYes

Enumeration DateMarch 3, 2026

NPPES CertifiedMarch 3, 2026

✔ NPI 1679428643 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

4600 SPOTSYLVANIA PKWY, Fredericksburg, VA 22408

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. William Andrew Tosick Iii is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22408 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

$86.88 typical visit price

range $56.19 – $170.30

Typical copayment $21.72 (range $14.04 – $42.57)

Most-billed visit code 99203

Established Patient

$70.08 typical visit price

range $18.07 – $138.91

Typical copayment $17.52 (range $4.51 – $34.72)

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 20

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

SHERIDAN EMERGENCY PHYSICIAN SERVICES OF VIRGINIA, INC

Emergency Medicine