Katherine Ewing, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA60909642 Issued in WA

Practice address

3927 Rucker Ave
Everett, WA 98201

Phone

(425) 339-5422

Fax

(425) 339-5444

NPI assigned

Jul 10, 2014

Last updated

Sep 20, 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 3

Addresses

Other names 1

• Katherine Maureau Former name

Medicare fee-for-service enrollment

Enrolled in MI, WA, OR3 enrollments

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 3

Specialty

Physician Assistant

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Optum Care Washington PLLCGroup PAC ID 6406752153, 684 clinicians

Oregon Healthcare Resources LLCGroup PAC ID 4486835477, 160 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kewing110219@westdirect.optum.com
• Direct secure messaging: kewing17312@direct.tecmc.com

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.

• Optum Care Washington PLLC

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1831186766
  Medicare reassignment Care Compare group
• Oregon Healthcare Resources, LLC

  dba Oregon Medical Group

  • Multi-Specialty Clinic/Center
  • Eugene, OR
  • NPI 1982907572
  Medicare reassignment Care Compare group
• The Polyclinic PLLC

  dba Optum - Broadway

  • Audiologist
  • Seattle, WA
  • NPI 1174594634
  Medicare reassignment NPD
• Hospitalist Physicians Medical Group of Michigan, PC

  • Emergency Medicine Physician
  • Chelsea, MI
  • NPI 1003978867
  Medicare reassignment
• Optum Care Washington PLLC

  • Durable Medical Equipment & Medical Supplies
  • Marysville, WA
  • NPI 1194428425
  NPD
• Optum Care Washington PLLC

  • Ambulatory Surgical Clinic/Center
  • Arlington, WA
  • NPI 1366154304
  NPD
• The Polyclinic PLLC

  dba Optum Tacoma

  • Durable Medical Equipment & Medical Supplies
  • Tacoma, WA
  • NPI 1831411487
  NPD
• Hospitalist Physicians Medical Group of Michigan, PC

  • Emergency Medicine Physician
  • Saint Joseph, MI
  • NPI 1407618234
  NPD
• Oregon Healthcare Resources, LLC

  dba Oregon Medical Group Urgent Care

  • Urgent Care Clinic/Center
  • Eugene, OR
  • NPI 1215761002
  NPD
• The Polyclinic PLLC

  dba Optum Care Washington

  • Durable Medical Equipment & Medical Supplies
  • Seattle, WA
  • NPI 1346620200
  NPD (past)

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

{
    "created_epoch": "1404950400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758326400000",
    "number": "1477969319",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 5127",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982065127",
            "telephone_number": "425-339-5422",
            "fax_number": "425-339-5444"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3927 RUCKER AVE",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "98201",
            "telephone_number": "425-339-5422",
            "fax_number": "425-339-5444"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2830 Crescent Ave",
            "address_purpose": "LOCATION",
            "city": "Eugene",
            "state": "OR",
            "postal_code": "974087397",
            "country_code": "US",
            "telephone_number": "541-686-9000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5701 Bow Pointe Dr Ste 100",
            "address_purpose": "LOCATION",
            "city": "Clarkston",
            "state": "MI",
            "postal_code": "483463199",
            "country_code": "US",
            "telephone_number": "248-625-2273",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "EWING",
        "first_name": "KATHERINE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-07-10",
        "last_updated": "2025-09-20",
        "certification_date": "2025-09-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "OR",
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA60909642",
            "primary": true
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "MI",
            "license": "5601007039",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATHERINE",
            "last_name": "MAUREAU",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Expedition Physical Therapy PLLC
• Eye-Q Docs of Everett LTD (Eye Doctors of Everett)
• Kevin Jon Eyre, B.A.
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• Physician Assistant in Everett, WA
• Providers in Everett, WA by specialty
• Physician Assistant in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 20, 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.