Ann M Knowles, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD00035979 Issued in WA

Practice address

3927 Rucker Ave
Everett, WA 98201-4833

Phone

(425) 339-5442

NPI assigned

Jul 7, 2006

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 6

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

University of Nebraska College of Medicine, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Optum Care Washington PLLCGroup PAC ID 6406752153, 684 clinicians

Practice addresses (Care Compare)

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: aknowles12371@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 and National Provider Directory roles.

• Optum Care Washington PLLC

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1831186766

  Family Medicine

  Medicare reassignment Care Compare group NPD
• Optum Care Washington PLLC

  • Durable Medical Equipment & Medical Supplies
  • Marysville, WA
  • NPI 1194428425

  Family Medicine

  NPD
• Optum Care Washington PLLC

  • Ambulatory Surgical Clinic/Center
  • Everett, WA
  • NPI 1154318103
  NPD (past)

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

{
    "created_epoch": "1152230400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1669404562",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7600 EVERGREEN WAY",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982036421",
            "telephone_number": "206-860-5414"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3927 RUCKER AVE",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982014833",
            "telephone_number": "425-339-5442"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNOWLES",
        "first_name": "ANN",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-07",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD00035979",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "080148615",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "L&I CRIME VICTIM",
            "identifier": "8924384",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP HEALTH COOPERATIVE",
            "identifier": "423898049",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "REGENCE BLUESHIELD",
            "identifier": "67444",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8223919",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "L&I REGULAR",
            "identifier": "0131540",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kirsten Michelle Knickerbocker
• Chelsea Elizabeth Knight, RN
• Erin Knight
• Tausha Ann Knight, ADN,RN
• Tracey Ann Knight
• Justin Knox Knowles
• Angela Renee Knox, MA-C
• Frances Melinda Knox, MD
• Terri A Knudson
• Ladonna Lea Knutsen, PTA

• Internal Medicine Physician in Everett, WA
• Providers in Everett, WA by specialty
• Internal Medicine Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2026; 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.