Steven Onstad, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

10764 Issued in MT

Practice address

2825 Stockyard Rd
Missoula, MT 59808-1503

Phone

(406) 728-8420

NPI assigned

May 11, 2006

Sex

Male

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 1

Medicare fee-for-service enrollment

Enrolled in MT

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

Anesthesiology

Education

Oregon Health Sciences University School of Medicine, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Missoula Anesthesiology PCGroup PAC ID 5597669960, 45 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St. Patrick Hospital Hospital, Missoula, MT, CCN 270014
• Community Medical Center Hospital, Missoula, MT, CCN 270023

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Missoula Anesthesiology, P.C.

  • Anesthesiology Physician
  • Missoula, MT
  • NPI 1710931225
  Medicare reassignment Care Compare group NPD
• Ma Critical Care Services, PC

  • Critical Care Medicine (Anesthesiology) Physician
  • Missoula, MT
  • NPI 1114221983
  NPD (past)

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

• Providence Health & Services Mt

  dba Providence St Patrick Hospital

  • General Acute Care Hospital
  • Missoula, MT
  • NPI 1023032588
  Care Compare affiliation
• Providence Health & Services Mt

  dba Montana Cancer Center at Providence St. Patrick Hospital

  • Medical Oncology Physician
  • Missoula, MT
  • NPI 1326483587

  Hospital

  Care Compare affiliation
• Providence Health & Services Mt

  dba St Patrick Hospital Pathology

  • Anatomic Pathology & Clinical Pathology Physician
  • Missoula, MT
  • NPI 1366185928

  Hospital

  Care Compare affiliation
• Providence Health & Services Mt

  dba St Patrick Hospital Psych

  • Psychiatric Hospital Unit
  • Missoula, MT
  • NPI 1619058302
  Care Compare affiliation
• RCHP Billings - Missoula LLC

  dba Community Medical Center

  • General Acute Care Hospital
  • Missoula, MT
  • NPI 1346642899
  Care Compare affiliation

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

{
    "created_epoch": "1147305600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1215987284",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2825 STOCKYARD RD.",
            "address_2": "BLDG I-200",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "59808"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2825 STOCKYARD RD",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598081503",
            "telephone_number": "406-728-8420"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ONSTAD",
        "first_name": "STEVEN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-11",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MT",
            "license": "10764",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0144279",
            "state": "MT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Anna Melissa Olsonoski, LCSW
• Laura Olsonoski, OTD
• Alexander Omura, M.D.
• One Love Foundation
• Shena M Oneill, FNP
• Onyx Counseling Services
• Opportunity Resources Inc
• Tricia A Opstad, CCC-SLP
• Optimum Health and Wellness, PLLC
• Options Counseling, LLC

• Anesthesiology Physician in Missoula, MT
• Providers in Missoula, MT by specialty
• Anesthesiology Physician in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.