Individual provider Active NPI

Patrick M Lassen, M.D.

  • Urology Physician
  • Longview, WA
National Provider Identifier
1285632919
Registry record updated Mar 3, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urology PhysicianTaxonomy code 208800000X
License
MD000037114 Issued in WA
Practice address
625 9TH Ave
Suite 120
Longview, WA 98632-2464
Phone
(360) 636-8950
Fax
(360) 636-8951
NPI assigned
Jul 7, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 3, 2020

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Urology Physician 208800000X MD000037114 WA Primary

Addresses

Primary practice location

625 9TH Ave
Suite 120
Longview, WA 98632-2464

Mailing address

625 9TH Ave
Suite 120
Longview, WA 98632-2464
Phone (360) 425-3720

Other identifiers 1

IdentifierTypeStateIssuer
8239790MedicaidWA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR
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
I20251121003383 OR Practitioner - Urology 0446147946 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Urology
Education
Oregon Health Sciences University School of Medicine, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Salem HealthGroup PAC ID 8628986668, 470 clinicians

Practice addresses (Care Compare)

890 Oak St SE
Salem, OR 97301-3905
Phone (503) 561-5200

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Prostate resection1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD000037114WAMDUrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Salem Health CurrentSince Dec 22, 2025 Accepting new patients
Salem Health CurrentSince Dec 22, 2025 Accepting new patients

Locations

665 Winter St SE
Salem, OR 97301
Phone (503) 370-5634

890 Oak St SE
Salem, OR 97301
Phone (503) 585-0830

Interoperability endpoints

  • Direct secure messaging: plassen50707@direct.peacehealth.org

Organizations & group practices 2

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.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1120694400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1583193600000",
    "number": "1285632919",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "625 9TH AVE",
            "address_2": "SUITE 120",
            "city": "LONGVIEW",
            "state": "WA",
            "postal_code": "986322464",
            "telephone_number": "360-425-3720",
            "fax_number": "360-425-0090"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "625 9TH AVE",
            "address_2": "SUITE 120",
            "city": "LONGVIEW",
            "state": "WA",
            "postal_code": "986322464",
            "telephone_number": "360-636-8950",
            "fax_number": "360-636-8951"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LASSEN",
        "first_name": "PATRICK",
        "middle_name": "M",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-07",
        "last_updated": "2020-03-03",
        "certification_date": "2020-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "WA",
            "license": "MD000037114",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8239790",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Longview, WA

Sources for this page

Verify at the official NPI Registry.