William Oliver Samuelson IV, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

12307 Issued in SD

Practice address

575 N Sioux Point Road
Dakota Dunes, SD 57049-5312

Phone

(605) 217-2667

Fax

(605) 217-2900

NPI assigned

Jul 21, 2014

Last updated

Dec 10, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 5

Addresses

Medicare fee-for-service enrollment

Enrolled in IA, NE, SD3 enrollments

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 3

Specialty

Orthopedic Surgery

Education

Texas Tech University Health Science Center School of Medicine, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cnos PCGroup PAC ID 4284548942, 98 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Orange City Area Health System Hospital, Orange City, IA, CCN 161360
• Dunes Surgical Hospital Hospital, Dakota Dunes, SD, CCN 430089
• Floyd Valley Healthcare Hospital, Le Mars, IA, CCN 161368
• St Lukes Regional Medical Center Hospital, Sioux City, IA, CCN 160146
• Cherokee Regional Medical Center Hospital, Cherokee, IA, CCN 161362

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: williamsamuelson@cnos.allscriptsdirect.net
• Direct secure messaging: wsamuelson783242@direct.unitypoint.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.

• Cnos PC

  • Orthopaedic Surgery Physician
  • Dakota Dunes, SD
  • NPI 1881604320

  IA, NE

  Medicare reassignment Care Compare group NPD
• Cnos, PC

  • Orthopaedic Surgery Physician
  • South Sioux City, NE
  • NPI 1750047304
  NPD
• St Luke's Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• Frances Mahon Deaconess Hospital

  • Critical Access Hospital
  • Glasgow, MT
  • NPI 1689685323
  NPD (past)

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

• Siouxland Surgery Center Limited Liability Partnership

  dba Dunes Surgical Hospital

  • Special Hospital
  • Dakota Dunes, SD
  • NPI 1093714073
  Care Compare affiliation
• Floyd Valley Healthcare

  • Critical Access Hospital
  • Le Mars, IA
  • NPI 1326109315
  Care Compare affiliation
• Northwest Iowa Hospital Corporation

  dba St Lukes Regional Medical Center

  • General Acute Care Hospital
  • Sioux City, IA
  • NPI 1962594622
  Care Compare affiliation
• Orange City Municipal Hospital

  dba Northwest Surgery

  • Specialist
  • Orange City, IA
  • NPI 1265479323

  Hospital

  Care Compare affiliation
• Orange City Municipal Hospital

  dba Orange City Area Health System

  • Critical Access Hospital
  • Orange City, IA
  • NPI 1700856796
  Care Compare affiliation
• Orange City Municipal Hospital

  dba Orange City Area Health System

  • Family Medicine Physician
  • Orange City, IA
  • NPI 1962477992

  Hospital

  Care Compare affiliation
• Sioux Valley Memorial Hospital Association

  dba Cherokee Regional Medical Center

  • Critical Access Hospital
  • Primghar, IA
  • NPI 1689640500
  Care Compare affiliation

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

{
    "created_epoch": "1405900800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1518374644",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "575 N SIOUX POINT ROAD",
            "city": "DAKOTA DUNES",
            "state": "SD",
            "postal_code": "570495312",
            "telephone_number": "605-217-2667",
            "fax_number": "605-217-2900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "575 N SIOUX POINT ROAD",
            "city": "DAKOTA DUNES",
            "state": "SD",
            "postal_code": "570495312",
            "telephone_number": "605-217-2667",
            "fax_number": "605-217-2900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2730 Pierce St Ste 300",
            "address_purpose": "LOCATION",
            "city": "Sioux City",
            "state": "IA",
            "postal_code": "511043765",
            "country_code": "US",
            "telephone_number": "712-224-8677",
            "fax_number": "712-277-1662",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SAMUELSON",
        "first_name": "WILLIAM",
        "middle_name": "OLIVER",
        "name_prefix": "Dr.",
        "name_suffix": "IV",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-07-21",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "MN",
            "license": "60328",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "NE",
            "license": "32965",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "IA",
            "license": "MD-47819",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "SD",
            "license": "12307",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Daniel Ben Rubens, SLP
• Lukas Sachau
• Sage Medical Prof LLC
• Juan Ignacio Salinas Cobian, OT
• Joanna B Salinas, NP-C
• Kristy Sandman, ATHLETIC TRAINER
• Matthew Santiago, CRNA
• Alexander M. Sarkisian, M.D.
• Nancy P Schenk, MD
• Adisyn Schmitz

• Orthopaedic Surgery Physician in Dakota Dunes, SD
• Providers in Dakota Dunes, SD by specialty
• Orthopaedic Surgery Physician in South Dakota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 10, 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.