Thomas E. Flass, MD

Primary specialty

Pediatric Gastroenterology PhysicianTaxonomy code 2080P0206X

License

11730 Issued in MT

Practice address

195 Commons Loop Ste D
Kalispell, MT 59901-1912

Phone

(406) 501-6570

NPI assigned

Jan 26, 2007

Last updated

Dec 13, 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 2

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Jul 1, 2025 through Jul 1, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: tflass3552308@wm.providencedirect.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.

• Frances Mahon Deaconess Hospital

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

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

{
    "created_epoch": "1169769600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765584000000",
    "number": "1770639387",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "234 TERRACE RD",
            "city": "KALISPELL",
            "state": "MT",
            "postal_code": "599017432",
            "telephone_number": "406-270-9548"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "195 COMMONS LOOP STE D",
            "city": "KALISPELL",
            "state": "MT",
            "postal_code": "599011912",
            "telephone_number": "406-501-6570"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "202 Conway Dr Ste 200",
            "address_purpose": "LOCATION",
            "city": "Kalispell",
            "state": "MT",
            "postal_code": "599013153",
            "country_code": "US",
            "telephone_number": "844-215-7969",
            "fax_number": "406-758-7080",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLASS",
        "first_name": "THOMAS",
        "middle_name": "E.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-26",
        "last_updated": "2025-12-13",
        "certification_date": "2025-12-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0206X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Gastroenterology",
            "state": "AZ",
            "license": "79324",
            "primary": false
        },
        {
            "code": "2080P0206X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Gastroenterology",
            "state": "MT",
            "license": "11730",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "krmcmedicalrecords@krhdirect.org",
            "affiliation": "Y",
            "affiliationName": "Kalispell Regional Medical Center Inc",
            "address_1": "202 Conway Dr Ste 200",
            "city": "Kalispell",
            "state": "MT",
            "country_code": "US",
            "postal_code": "599013153",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Five Shen Wellness, Inc (Jing Shen Healing Arts)
• Chelsey Fjeldheim, LCSW
• Deborah Jo Fjelstrom, LCSW, PHD
• Michael Flamm, RPH
• Katherine Flass, PA-C
• Flathead Accessibility & Mobility
• Flathead Case Management Services LLC
• Flathead Community Health Center, Inc. (Greater Valley Health Center)
• Flathead Community Health Center, Inc. (Greater Valley Health Center)
• Flathead Community Health Center, Inc. (Greater Valley Health Center)

• Pediatric Gastroenterology Physician in Kalispell, MT
• Providers in Kalispell, MT by specialty
• Pediatric Gastroenterology Physician in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 13, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.