NPIMap

Individual provider Active NPI

Thomas Trouillot, M.D.

  • Gastroenterology Physician
  • Denver, CO
National Provider Identifier
1902850811
Registry record updated Apr 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
CDRH.0031056 Issued in CO
Practice address
1960 Ogden St
Suite 220
Denver, CO 80218-1022
Phone
(303) 861-0808
Fax
(303) 861-2193
NPI assigned
May 22, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 8, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 118703 MT
Gastroenterology Physician 207RG0100X CDRH.0031056 CO Primary

Addresses

Primary practice location

1960 Ogden St
Suite 220
Denver, CO 80218-1022

Mailing address

1960 N Ogden St Ste 220
Denver, CO 80218-3668
Phone (303) 861-0808

Other practice location 1

320 Sunnyview Ln
Kalispell, MT 59901-3129
Phone (406) 752-7441

Other practice location 2

1010 Three Springs Blvd Ste 270
Durango, CO 81301-8296
Phone (970) 764-3800

Other identifiers 2

IdentifierTypeStateIssuer
P00139254OtherCORAILROAD MEDICARE
01310564MedicaidCO

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address krmcmedicalrecords@krhdirect.org Direct Kalispell Regional Medical Center, Inc

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO, MT, WA3 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20040729001458 CO Practitioner - GastroenterologyPractitioner - Internal Medicine 8729072814 Reassigns benefits to 3 organizations
I20230608000915 MT Practitioner - Gastroenterology 8729072814 Reassigns benefits to 2 organizations
I20260619001817 WA Practitioner - Gastroenterology 8729072814 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
University of California, San Francisco School of Medicine, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Catholic Health Initiatives ColoradoGroup PAC ID 8022927342, 1,230 clinicians
Kalispell Regional Medical Center IncGroup PAC ID 5294644381, 422 clinicians
Colorado Gastroenterology Prof LLCGroup PAC ID 6608846506, 4 clinicians

Practice addresses (Care Compare)

1010 Three Springs Blvd
Suite 270
Durango, CO 81301-8296
Phone (970) 764-3800

320 Sunnyview LN
Kalispell, MT 59901-3129
Phone (406) 756-3526

4500 E 9TH Ave
Suite 720S
Denver, CO 80220-3926
Phone (303) 861-0808

Hospital & facility affiliations

  • Mercy Regional Medical Center Hospital, Durango, CO, CCN 060013
  • Logan Health Medical Center Hospital, Kalispell, MT, CCN 270051
  • HCA Healthone Rose Hospital, Denver, CO, CCN 060032
  • HCA Florida West Hospital Hospital, Pensacola, FL, CCN 100231

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy85
Upper gastrointestinal (GI) endoscopy for acid reflux55

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
CDRH.0031056COMDGastroenterology Physician
118703MTMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Catholic Health Initiatives Colorado Current Accepting new patients
RCHP Billings - Missoula LLC Current Accepting new patients
Denver Digestive Health Specialists Inc Gastroenterology CurrentSince Feb 19, 2024 Accepting new patients
RCHP Billings - Missoula LLC CurrentSince Sep 4, 2023 Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Jan 25, 2024 Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Jan 25, 2024 Accepting new patients
Denver Surgicenter, LLC PastSince Mar 20, 2004 Accepting new patients
Mile High Gastroenterology,P.C. Gastroenterology Past Accepting new patients
Jonathon J Dormish DPM LLC Past Accepting new patients
Catholic Health Initiatives Colorado Past Accepting new patients

Locations

9100 E Mineral Cir
Centennial, CO 80112
Phone (303) 561-5193

8155 E 1st Ave
Denver, CO 80230
Phone (303) 344-4844

4500 E 9th Ave
Ste 720S
Denver, CO 80220
Phone (303) 355-3525

1010 Three Springs Blvd
Ste 270
Durango, CO 81301
Phone (970) 764-3800

41 State Highway 67
Woodland Park, CO 80863
Phone (719) 686-0551

2230 N Reserve St
Ste 402
Missoula, MT 59808
Phone (406) 327-3850

2230 N Reserve St
Missoula, MT 59808
Phone (406) 721-0533

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

Organizations & group practices 13

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.

View all 13

Hospital & facility affiliations 13

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

View all 13

NPI Registry JSON

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

{
    "created_epoch": "1148256000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1902850811",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1960 N OGDEN ST STE 220",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802183668",
            "telephone_number": "303-861-0808",
            "fax_number": "303-861-2193"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1960 OGDEN ST",
            "address_2": "SUITE 220",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802181022",
            "telephone_number": "303-861-0808",
            "fax_number": "303-861-2193"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "320 Sunnyview Ln",
            "address_purpose": "LOCATION",
            "city": "Kalispell",
            "state": "MT",
            "postal_code": "599013129",
            "country_code": "US",
            "telephone_number": "406-752-7441",
            "fax_number": "406-257-0304",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1010 Three Springs Blvd Ste 270",
            "address_purpose": "LOCATION",
            "city": "Durango",
            "state": "CO",
            "postal_code": "813018296",
            "country_code": "US",
            "telephone_number": "970-764-3800",
            "fax_number": "970-764-3840",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TROUILLOT",
        "first_name": "THOMAS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-22",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MT",
            "license": "118703",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CO",
            "license": "CDRH.0031056",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "P00139254",
            "state": "CO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01310564",
            "state": "CO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "krmcmedicalrecords@krhdirect.org",
            "affiliation": "Y",
            "affiliationName": "Kalispell Regional Medical Center, Inc",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "320 Sunnyview Ln",
            "city": "Kalispell",
            "state": "MT",
            "country_code": "US",
            "postal_code": "599013129",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.