Lynette Serwa Owusu Williams

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

4800 Sand Point Way NE
Seattle, WA 98105-3901

Phone

(206) 987-2000

NPI assigned

Sep 16, 2024

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

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

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.

• Providence Health & Services-Wa

  • Mammography Clinic/Center
  • Everett, WA
  • NPI 1336390442
  Medicare reassignment NPD
• Seattle Children'S Hospital

  • Specialist
  • Seattle, WA
  • NPI 1003319500
  Medicare reassignment NPD
• Providence Health & Services-Wa

  • Pediatric Nurse Practitioner
  • Everett, WA
  • NPI 1790936185
  NPD
• Providence Health & Services-Washington

  • Ambulatory Surgical Clinic/Center
  • Everett, WA
  • NPI 1588294854
  NPD
• Seattle Children'S Hospital

  • Rehabilitation Hospital Unit
  • Seattle, WA
  • NPI 1184708992
  NPD
• Seattle Childrens Hospital

  • Clinic Pharmacy
  • Seattle, WA
  • NPI 1245342153
  NPD
• Seattle Children'S Hospital

  • Home Infusion Agency
  • Bothell, WA
  • NPI 1245383348
  NPD (past)

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

{
    "created_epoch": "1726444800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762128000000",
    "number": "1992532766",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4800 SAND POINT WAY NE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981053901",
            "telephone_number": "206-987-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4800 SAND POINT WAY NE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981053901",
            "telephone_number": "206-987-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "LYNETTE",
        "middle_name": "SERWA OWUSU",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-09-16",
        "last_updated": "2025-11-03",
        "certification_date": "2025-11-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Leston Williams
• Levi R Williams
• Lily Williams
• Lisa Williams
• Lisa Howard Williams, MD
• Maegon Williams
• Mailyn Faye Williams, PA-C, RDMS, RVT
• Marcia S. Williams, PHD, MPH
• Marvin Wallace Williams, ARNP
• Matthew Williams, RN

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 3, 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.