Chelsea J Twamley, CNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

CP000563 Issued in SD

Practice address

3801 S Elmwood Ave
Sioux Falls, SD 57105-6565

Phone

(605) 306-6100

NPI assigned

Sep 2, 2009

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

• Chelsea J Golden Former name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in SD, MN2 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 2

Specialty

Nurse Practitioner

Education

Other, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dakota Vascular Prof LLCGroup PAC ID 9931588399, 6 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Avera McKennan Hospital & University Health Center Hospital, Sioux Falls, SD, CCN 430016
• Avera Sacred Heart Hospital Hospital, Yankton, SD, CCN 430012
• Brookings Health System Hospital, Brookings, SD, CCN 430008
• Madison Regional Health System Hospital, Madison, SD, CCN 431300

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Nurse Practitioner, Nurse Practitioner

State licenses

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.

• Dakota Vascular Prof LLC

  • Vascular Surgery Physician
  • Sioux Falls, SD
  • NPI 1407591258

  MN

  Medicare reassignment Care Compare group NPD
• Avera Marshall

  • Critical Access Hospital
  • Marshall, MN
  • NPI 1568401016
  Medicare reassignment NPD
• Sanford Clinic

  • Surgery Physician
  • Sioux Falls, SD
  • NPI 1194733535

  MN

  Medicare reassignment
• Sanford Health Network

  • Critical Access Hospital
  • Vermillion, SD
  • NPI 1790721280
  Medicare reassignment
• Sanford Health Network

  • Family Medicine Physician
  • Vermillion, SD
  • NPI 1013921733

  Nurse Practitioner

  NPD
• Sanford Health Network

  • Family Medicine Physician
  • Aberdeen, SD
  • NPI 1861597981
  NPD
• Avera Marshall

  • Optometrist
  • Marshall, MN
  • NPI 1487422465
  NPD
• Avera Marshall

  • Community Health Clinic/Center
  • Marshall, MN
  • NPI 1912265059
  NPD
• Avera Marshall

  • Multi-Specialty Clinic/Center
  • Marshall, MN
  • NPI 1962641936
  NPD (past)

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

• Avera McKennan

  • Obstetrics & Gynecology Physician
  • Sioux Falls, SD
  • NPI 1003188269

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Rheumatology Physician
  • Sioux Falls, SD
  • NPI 1013177393

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Psychiatry Physician
  • Sioux Falls, SD
  • NPI 1013980598

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Orthopaedic Surgery Physician
  • Sioux Falls, SD
  • NPI 1093262131

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Neurological Surgery Physician
  • Sioux Falls, SD
  • NPI 1114113693

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Physical Medicine & Rehabilitation Physician
  • Sioux Falls, SD
  • NPI 1134195332

  Hospital

  Care Compare affiliation
• Avera McKennan

  • General Acute Care Hospital
  • Sioux Falls, SD
  • NPI 1154531630
  Care Compare affiliation
• Avera McKennan

  • General Acute Care Hospital
  • Sioux Falls, SD
  • NPI 1184834764
  Care Compare affiliation
• Avera McKennan

  • Gastroenterology Physician
  • Sioux Falls, SD
  • NPI 1194799882

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Obstetrics & Gynecology Physician
  • Sioux Falls, SD
  • NPI 1336111962

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Family Medicine Physician
  • Sioux Falls, SD
  • NPI 1376575514

  Hospital

  Care Compare affiliation
• Avera McKennan

  • Endocrinology, Diabetes & Metabolism Physician
  • Sioux Falls, SD
  • NPI 1396711016

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1251849600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750291200000",
    "number": "1760615074",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3801 S ELMWOOD AVE",
            "city": "SIOUX FALLS",
            "state": "SD",
            "postal_code": "571056565",
            "telephone_number": "605-306-6100",
            "fax_number": "605-306-6500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3801 S ELMWOOD AVE",
            "city": "SIOUX FALLS",
            "state": "SD",
            "postal_code": "571056565",
            "telephone_number": "605-306-6100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TWAMLEY",
        "first_name": "CHELSEA",
        "middle_name": "J",
        "credential": "CNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-09-02",
        "last_updated": "2025-06-19",
        "certification_date": "2025-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "SD",
            "license": "CP000563",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "VT",
            "license": "101.0108558",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "SD",
            "license": "CP000563",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ctwamley@dakotavascular.com",
            "affiliation": "N",
            "address_1": "3801 S Elmwood Ave",
            "city": "Sioux Falls",
            "state": "SD",
            "country_code": "US",
            "postal_code": "571056565",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "CHELSEA",
            "last_name": "GOLDEN",
            "middle_name": "J",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Family Nurse Practitioner in Sioux Falls, SD
• Providers in Sioux Falls, SD by specialty
• Family Nurse Practitioner in South Dakota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 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.