Individual provider Active NPI

William Andrew Tosick III

  • Physician Assistant
  • Fredericksburg, VA
National Provider Identifier
1679428643
Registry record updated Mar 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
4600 Spotsylvania Pkwy
Fredericksburg, VA 22408-7762
Phone
(540) 498-4000
NPI assigned
Mar 3, 2026
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 3, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician AssistantGroup: 193200000X MULTI-SPECIALTY GROUP 363A00000X Primary

Addresses

Primary practice location

4600 Spotsylvania Pkwy
Fredericksburg, VA 22408-7762

Mailing address

4600 Spotsylvania Pkwy
Fredericksburg, VA 22408-7762

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1772496000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772496000000",
    "number": "1679428643",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4600 SPOTSYLVANIA PKWY",
            "city": "FREDERICKSBURG",
            "state": "VA",
            "postal_code": "224087762"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4600 SPOTSYLVANIA PKWY",
            "city": "FREDERICKSBURG",
            "state": "VA",
            "postal_code": "224087762",
            "telephone_number": "540-498-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOSICK",
        "first_name": "WILLIAM",
        "middle_name": "ANDREW",
        "name_prefix": "Mr.",
        "name_suffix": "III",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-03-03",
        "last_updated": "2026-03-03",
        "certification_date": "2026-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fredericksburg, VA

Sources for this page

Verify at the official NPI Registry.