Chelsea Mackay, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA.PA.61690554 Issued in WA

Practice address

220 Unity St
Bellingham, WA 98225-4420

Phone

(360) 676-6177

Fax

(360) 671-3574

NPI assigned

Apr 1, 2021

Last updated

Jul 28, 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 1

Addresses

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

Physician Assistant

Education

Mercer University School of Medicine, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Unity Care NorthwestGroup PAC ID 7911897699, 39 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Peacehealth Home Health of Whatcom County Home health agency, Bellingham, WA, CCN 507307

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Arts, Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cmackay816627@direct.ochin.org

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.

• Unity Care Northwest

  • Federally Qualified Health Center (FQHC)
  • Bellingham, WA
  • NPI 1760430532
  Medicare reassignment Care Compare group NPD (past)
• Unity Care Northwest

  • Federally Qualified Health Center (FQHC)
  • Bellingham, WA
  • NPI 1316785207
  NPD
• Unity Care Northwest

  • Federally Qualified Health Center (FQHC)
  • Ferndale, WA
  • NPI 1376013250
  NPD

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

• Peacehealth

  dba PeaceHealth Home Health of Whatcom County

  • Home Health Agency
  • Bellingham, WA
  • NPI 1710639901
  Care Compare affiliation

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

{
    "created_epoch": "1617235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1790363448",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "220 UNITY ST",
            "city": "BELLINGHAM",
            "state": "WA",
            "postal_code": "982254420",
            "telephone_number": "360-676-6177",
            "fax_number": "360-671-3574"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "220 UNITY ST",
            "city": "BELLINGHAM",
            "state": "WA",
            "postal_code": "982254420",
            "telephone_number": "360-676-6177",
            "fax_number": "360-671-3574"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACKAY",
        "first_name": "CHELSEA",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-01",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA.PA.61690554",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Etjen L Mack-Palmer, LMHC
• Emilie Veronica Mack
• Tanya Rose Mack, RN
• Tia Mack
• Bruce Cole Mackay, MD
• Sarah Emily Mackay, B.A.
• Alaysha Mae Mackenzie, RDH
• Delynn Poole Mackenzie, LMHC
• Marsha E Mackenzie
• Kayla Maclain

• Physician Assistant in Bellingham, WA
• Providers in Bellingham, WA by specialty
• Physician Assistant in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 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.