Individual provider Active NPI

Mark Claus Snyder, M.D.

  • Anesthesiology Physician
  • Missoula, MT
National Provider Identifier
1821087883
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
8660 Issued in MT
Practice address
3550 Mullan Rd
Suite 103
Missoula, MT 59808-5168
Phone
(406) 728-8420
NPI assigned
Oct 20, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 8660 MT Primary

Addresses

Primary practice location

3550 Mullan Rd
Suite 103
Missoula, MT 59808-5168

Mailing address

PO Box 17527
Missoula, MT 59808-7527
Phone (406) 728-8420

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20050519001085 MT Practitioner - Anesthesiology 3173564184 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Baylor College of Medicine, 1986
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)

500 W Broadway
St Patrick Hospital
Missoula, MT 59802-4008
Phone (406) 543-7271

Hospital & facility affiliations

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

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
8660MTMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Missoula Anesthesiology, P.C. Anesthesiology CurrentSince Jul 6, 1999 Accepting new patients
Ma Critical Care Services, PC Past Accepting new patients

Locations

2833 Fort Missoula Rd
Missoula, MT 59804
Phone (406) 542-6559

902 N Orange St
Missoula, MT 59802
Phone (406) 327-3300

500 W Broadway St
Missoula, MT 59802
Phone (406) 327-1918

2825 Stockyard Rd
Ste I-200
Missoula, MT 59808
Phone (406) 728-4100

2360 Mullan Rd
Missoula, MT 59808
Phone (406) 541-4263

2827 Fort Missoula Rd
Missoula, MT 59804
Phone (406) 327-4202

3550 Mullan Rd
Ste 103
Missoula, MT 59808

Organizations & group practices 2

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.

Hospital & facility affiliations 5

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

NPI Registry JSON

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

{
    "created_epoch": "1129766400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1821087883",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 17527",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598087527",
            "telephone_number": "406-728-8420"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3550 MULLAN RD",
            "address_2": "SUITE 103",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598085168",
            "telephone_number": "406-728-8420"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SNYDER",
        "first_name": "MARK",
        "middle_name": "CLAUS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MT",
            "license": "8660",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Missoula, MT

Sources for this page

Verify at the official NPI Registry.