Mary E Brennan, ARNP

Primary specialty

Occupational Health Nurse PractitionerTaxonomy code 363LX0106X

License

AP30001951 Issued in WA

Practice address

1405 Delaware St
Longview, WA 98632-2326

Phone

(360) 414-2332

Fax

(360) 414-2330

NPI assigned

Aug 24, 2005

Last updated

Sep 11, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Other identifiers 4

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

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

• Peacehealth

  dba St John Medical Center - Occupational Health

  • Durable Medical Equipment & Medical Supplies
  • Longview, WA
  • NPI 1457787053
  NPD (past)
• Peacehealth

  dba St. John Medical Center - PeaceHealth Medical Group

  • Multi-Specialty Clinic/Center
  • Longview, WA
  • NPI 1720056187
  NPD (past)

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

{
    "created_epoch": "1124841600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1861485872",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 249",
            "city": "LONGVIEW",
            "state": "WA",
            "postal_code": "986327154",
            "telephone_number": "360-414-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1405 DELAWARE ST",
            "city": "LONGVIEW",
            "state": "WA",
            "postal_code": "986322326",
            "telephone_number": "360-414-2332",
            "fax_number": "360-414-2330"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BRENNAN",
        "first_name": "MARY",
        "middle_name": "E",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-08-24",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "WA",
            "license": "AP30001951",
            "primary": false
        },
        {
            "code": "363LX0106X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Occupational Health",
            "state": "WA",
            "license": "AP30001951",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "WA",
            "license": "RN00061070",
            "primary": false
        },
        {
            "code": "163WX0106X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Occupational Health",
            "state": "WA",
            "license": "RN00061070",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LABOR & IND.",
            "identifier": "166678",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100229",
            "state": "OR"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CRIME VICTIMS",
            "identifier": "8933453",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9636150",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Simrandeep Kaur Brar, M.D.
• Amie-Jo Brassfield, CDPT
• Elizabeth Jolie Brassfield
• William Joseph Braune, RN
• Paul Fredric Brenc, M.D.
• Katrina Elizabeth Brett, DPT
• Jerry Brier
• Lance Dee Brigman, M.D.
• Matthew D. Brock, M.D.
• Jillian Shelby Brockmoller

• Occupational Health Nurse Practitioner in Longview, WA
• Providers in Longview, WA by specialty
• Occupational Health Nurse Practitioner in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.