Heather Ann Day, APNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

AP60466571 Issued in WA

Practice address

1800 Cooks Hill Rd Ste G
Centralia, WA 98531-9162

Phone

(360) 736-3042

Fax

(360) 736-2967

NPI assigned

Oct 6, 2009

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Other names 1

• Heather A Lassila Former name

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lewis County Community Health Services 31 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence Centralia Hospital Hospital, Centralia, WA, CCN 500019

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: heather.dayarnp.p1@direct.valleyviewhc.nextgenshare.com

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.

• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Chehalis, WA
  • NPI 1134164692

  WA

  Medicare reassignment Care Compare group NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Edmonds, WA
  • NPI 1447484274

  WA

  Medicare reassignment NPD
• Multicare Health System

  • Neurological Surgery Physician
  • Tacoma, WA
  • NPI 1497766638

  WA

  Medicare reassignment NPD
• Northwest Physician Associates PC

  • Physician Assistant
  • Arlington, WA
  • NPI 1275567919

  Nurse Practitioner, WA

  Medicare reassignment NPD
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Olympia, WA
  • NPI 1104265925
  Care Compare group NPD
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Centralia, WA
  • NPI 1811669658
  Care Compare group NPD
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Olympia, WA
  • NPI 1124739974
  Care Compare group
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Raymond, WA
  • NPI 1205196540
  Care Compare group
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Chehalis, WA
  • NPI 1326729864
  Care Compare group
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Centralia, WA
  • NPI 1437418175
  Care Compare group
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Pe Ell, WA
  • NPI 1548520059
  Care Compare group
• Lewis County Community Health Services

  • Federally Qualified Health Center (FQHC)
  • Onalaska, WA
  • NPI 1659631141
  Care Compare group

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

• Providence Health & Services Washington

  • General Acute Care Hospital
  • Centralia, WA
  • NPI 1376624981

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1254787200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750032000000",
    "number": "1265767487",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2690 NE KRESKY AVE",
            "city": "CHEHALIS",
            "state": "WA",
            "postal_code": "985322412",
            "telephone_number": "360-330-9595",
            "fax_number": "360-330-9560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1800 COOKS HILL RD STE G",
            "city": "CENTRALIA",
            "state": "WA",
            "postal_code": "985319162",
            "telephone_number": "360-736-3042",
            "fax_number": "360-736-2967"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DAY",
        "first_name": "HEATHER",
        "middle_name": "ANN",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-10-06",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WA",
            "license": "AP60466571",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2037352",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HEATHER",
            "last_name": "LASSILA",
            "middle_name": "A",
            "credential": "ARNP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Aaron Matthew Dalan, MD
• Kathleen Marie Dan, LMT
• Huy D Dang, DPM
• Kyndall R Daniels, AAC
• Kyle Edward Davidson
• Amanda De Los Santos, AAC
• Sheryl Faye Dean, OTR/L
• Christyn Deangelis
• Amy Michelle Dearing
• Austyn Madison Deel

• All providers in Centralia, WA
• Family Nurse Practitioner in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.