Chadron Vassar, D.O

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

2021044086 Issued in MO

Practice address

1100 N Kentucky Ave
West Plains, MO 65775-2029

Phone

(417) 256-9111

NPI assigned

Apr 7, 2015

Sex

Male

Sole proprietor

No

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

Specialties & licenses 6

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in ME, MO, SD, IA, ND5 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 5

Specialty

Anesthesiology

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Eastern Maine Medical CenterGroup PAC ID 2062315161, 659 clinicians

State University of IowaGroup PAC ID 7618884230, 1,886 clinicians

Trinity HealthGroup PAC ID 7911816020, 292 clinicians

Avera St LukesGroup PAC ID 6406764927, 164 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northern Light Eastern Maine Medical Center Hospital, Bangor, ME, CCN 200033
• Avera St Lukes Hospital, Aberdeen, SD, CCN 430014
• Trinity Hospitals Hospital, Minot, ND, CCN 350006

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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.

• Avera St. Luke's

  dba Avera Internal Medicine Aberdeen

  • Internal Medicine Physician
  • Aberdeen, SD
  • NPI 1215100813
  Medicare reassignment Care Compare group NPD
• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147
  Medicare reassignment Care Compare group NPD
• State University of Iowa

  dba University of Iowa Health Care

  • Family Medicine Physician
  • Iowa City, IA
  • NPI 1477554814
  Medicare reassignment Care Compare group NPD
• Trinity Health

  dba Trinity Medical Group

  • Multi-Specialty Clinic/Center
  • Minot, ND
  • NPI 1083653752
  Medicare reassignment Care Compare group NPD
• Ozarks Medical Center

  dba Ozarks Healthcare

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  Medicare reassignment
• Avera St. Luke's

  dba Aberdeen Plastic Surgery Associates

  • Plastic and Reconstructive Surgery Physician
  • Aberdeen, SD
  • NPI 1851547798
  NPD
• Avera St. Lukes

  dba Avera Medical Group Nephrology Aberdeen

  • Nephrology Physician
  • Aberdeen, SD
  • NPI 1477594430
  NPD
• Eastern Maine Medical Center

  • Rehabilitation Hospital Unit
  • Bangor, ME
  • NPI 1780674689
  NPD
• Trinity Health

  dba Trinity Portable X-Ray

  • Portable X-ray and/or Other Portable Diagnostic Imaging Supplier
  • Minot, ND
  • NPI 1629636204
  NPD
• Trinity Health

  dba TCC-Western Dakota X-Ray

  • Radiology Clinic/Center
  • Williston, ND
  • NPI 1962738542
  NPD
• Granite Peak Anesthesiology Consultants

  • Anesthesiology Physician
  • Billings, MT
  • NPI 1700637907
  NPD (past)

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

• Avera St Lukes

  • General Acute Care Hospital
  • Aberdeen, SD
  • NPI 1457309270
  Care Compare affiliation
• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147
  Care Compare affiliation
• Trinity Hospitals

  dba Trinity Health First Response Air Ambulance

  • Air Ambulance
  • Minot, ND
  • NPI 1053502773

  Hospital

  Care Compare affiliation
• Trinity Hospitals

  dba Community Ambulance Service, Inc.

  • Land Ambulance
  • Minot, ND
  • NPI 1134310857

  Hospital

  Care Compare affiliation
• Trinity Hospitals

  • General Acute Care Hospital
  • Minot, ND
  • NPI 1427103910
  Care Compare affiliation
• Trinity Hospitals

  dba Trinity Hospitals Residential Treatment Center

  • Substance Abuse Rehabilitation Facility
  • Minot, ND
  • NPI 1457539660

  Hospital

  Care Compare affiliation
• Trinity Hospitals

  dba Trinity St Joseph's CDU

  • Substance Use Disorder Rehabilitation Hospital Unit
  • Minot, ND
  • NPI 1487804092
  Care Compare affiliation
• Trinity Hospitals

  • General Acute Care Hospital
  • Minot, ND
  • NPI 1932359544
  Care Compare affiliation

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

{
    "created_epoch": "1428364800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758672000000",
    "number": "1962898825",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1100 N KENTUCKY AVE",
            "city": "WEST PLAINS",
            "state": "MO",
            "postal_code": "657752029",
            "telephone_number": "417-256-9111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1100 N KENTUCKY AVE",
            "city": "WEST PLAINS",
            "state": "MO",
            "postal_code": "657752029",
            "telephone_number": "417-256-9111"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2305 37th Ave SW",
            "address_purpose": "LOCATION",
            "city": "Minot",
            "state": "ND",
            "postal_code": "587017669",
            "country_code": "US",
            "telephone_number": "701-418-8000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "118 Northport Ave",
            "address_purpose": "LOCATION",
            "city": "Belfast",
            "state": "ME",
            "postal_code": "049156072",
            "country_code": "US",
            "telephone_number": "207-338-9345",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Hawkins Dr",
            "address_purpose": "LOCATION",
            "city": "Iowa City",
            "state": "IA",
            "postal_code": "522421009",
            "country_code": "US",
            "telephone_number": "319-356-2633",
            "fax_number": "319-356-2940",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3333 2nd Ave N Ste 240",
            "address_purpose": "LOCATION",
            "city": "Billings",
            "state": "MT",
            "postal_code": "591012033",
            "country_code": "US",
            "telephone_number": "406-248-3290",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "VASSAR",
        "first_name": "CHADRON",
        "credential": "D.O",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-07",
        "last_updated": "2025-09-24",
        "certification_date": "2025-09-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "ME",
            "license": "DO3213",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MO",
            "license": "2021044086",
            "primary": true
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "ND",
            "license": "19119",
            "primary": false
        },
        {
            "code": "207LP3000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pediatric Anesthesiology",
            "state": "IA",
            "license": "DO-05137",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IA",
            "license": "DO-05137",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MT",
            "license": "84627",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://cobiusconnect.cobius.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.1068.1",
            "affiliationName": "Cobius Healthcare Solutions",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "address_1": "2720 Dundee Rd # 302",
            "city": "Northbrook",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600622609",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Ryan Nathaniel Vaisler, M.D.
• Carolyn Valade
• Maureen Gaye Vance, RPH
• Scott Vance
• Addy Vanoskeuls
• Patricia Lynn Velarde
• Janet Verduzco, BACHELOR OF SCIENCE
• Lonnie Ray Vetter, D.D.S.
• Visionary Imaging LLC
• Vocational Visionary Opportunities

• Anesthesiology Physician in West Plains, MO
• Providers in West Plains, MO by specialty
• Anesthesiology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 24, 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.