Individual provider Active NPI

William Baird Belshe

  • Cardiovascular Disease Physician
  • Seattle, WA
National Provider Identifier
1245937721
Registry record updated Jun 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
MD70016798 Issued in WA
Practice address
1959 NE Pacific St
Seattle, WA 98195-0001
Phone
(206) 520-5000
NPI assigned
Feb 14, 2023
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 10, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD70016798 WA
Cardiovascular Disease Physician 207RC0000X MD70016798 WA Primary

Addresses

Primary practice location

1959 NE Pacific St
Seattle, WA 98195-0001

Mailing address

PO Box 50095
Seattle, WA 98145-5095

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260624001202 WA Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 1759746308 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Association of University PhysiciansGroup PAC ID 0446162697, 3,484 clinicians

Practice addresses (Care Compare)

1959 NE Pacific St
Seattle, WA 98195-0001
Phone (206) 598-4333

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1676332800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1245937721",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1959 NE PACIFIC ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981950001",
            "telephone_number": "206-520-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BELSHE",
        "first_name": "WILLIAM",
        "middle_name": "BAIRD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-02-14",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD70016798",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "WA",
            "license": "MD70016798",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.