Individual provider Active NPI

Thomas G Heffron, MD

  • Transplant Surgery Physician
  • Denver, CO
National Provider Identifier
1063522423
Registry record updated Oct 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Transplant Surgery PhysicianTaxonomy code 204F00000X
License
47369 Issued in CO
Practice address
2535 S Downing St Ste 400
Denver, CO 80210-5851
Phone
(303) 777-7112
Fax
(303) 722-7010
NPI assigned
Aug 30, 2006
Last updated
Oct 21, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 21, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Transplant Surgery Physician 204F00000X 47369 CO Primary
Surgery Physician 208600000X 47369 CO

Addresses

Primary practice location

2535 S Downing St Ste 400
Denver, CO 80210-5851

Mailing address

PO Box 300369
Denver, CO 80203-0369
Phone (303) 957-1310

Other identifiers 1

IdentifierTypeStateIssuer
91171009MedicaidCO

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address thomas.heffron@surgone.directbygreenway.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
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
I20090622000364 CO Practitioner - General SurgeryPractitioner - Surgical OncologyPractitioner - Other (Physician) 5890846406 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
General SurgeryAlso: Surgical Oncology
Education
University of Nebraska College of Medicine, 1982
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Surgone PCGroup PAC ID 9032002985, 39 clinicians
Traumaone, PLLCGroup PAC ID 2961724190, 11 clinicians

Practice addresses (Care Compare)

1601 E 19TH Ave
Suite 6300
Denver, CO 80218-1255
Phone (303) 839-5669

2525 S Downing St
Denver, CO 80210-5817

2535 D S Downing St
Suite 460
Denver, CO 80210-5817
Phone (303) 744-1065

2535 S Downing St
Denver, CO 80210-5850
Phone (303) 778-5797

2535 S Downing St
400 Surgone Porter Office
Denver, CO 80210-5851
Phone (303) 788-8989

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Hernia repair (minimally invasive)1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
47369COMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Surgone, PC Transplant Surgery CurrentSince Jul 1, 2009 Accepting new patients
Traumaone, PLLC CurrentSince Dec 1, 2024 Accepting new patients
Portercare Adventist Health System Current Accepting new patients
Surgone, PC Surgery CurrentSince Jul 1, 2009 Accepting new patients
Portercare Adventist Health System CurrentSince Nov 18, 2024 Accepting new patients
Portercare Adventist Health System CurrentSince Nov 18, 2024 Accepting new patients
Portercare Adventist Health System Past Accepting new patients
Portercare Adventist Health System Past Accepting new patients

Locations

2350 Meadows Blvd
Castle Rock, CO 80109
Phone (720) 248-3413

1601 E 19th Ave
Ste 4600
Denver, CO 80218
Phone (303) 260-5092

1601 E 19th Ave
Ste 5500
Denver, CO 80218
Phone (303) 260-5092

1601 E 19th Ave
Ste 6300
Denver, CO 80218
Phone (303) 839-5669

2525 S Downing St
Denver, CO 80210
Phone (303) 744-2706

2535 S Downing St
Ste 380
Denver, CO 80210
Phone (303) 260-2740

2535 S Downing St
Ste 400
Denver, CO 80210
Phone (303) 788-8989

3333 S Bannock St
Ste 350
Englewood, CO 80110
Phone (303) 957-1310

8490 E Crescent Pkwy
Ste 380
Greenwood Village, CO 80111
Phone (303) 957-1310

10103 Ridgegate Pkwy
Ste 217
Lone Tree, CO 80124
Phone (303) 789-1877

900 Hope Way
Forest City, FL 32714
Phone (407) 357-1255

Interoperability endpoints

  • Direct secure messaging: thomas.heffron@surgone.directbygreenway.com

Organizations & group practices 8

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.

Hospital & facility affiliations 1

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": "1156896000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792540800000",
    "number": "1063522423",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 300369",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802030369",
            "telephone_number": "303-957-1310",
            "fax_number": "303-761-4252"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2535 S DOWNING ST STE 400",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802105851",
            "telephone_number": "303-777-7112",
            "fax_number": "303-722-7010"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HEFFRON",
        "first_name": "THOMAS",
        "middle_name": "G",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-30",
        "last_updated": "2026-10-21",
        "certification_date": "2026-10-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "204F00000X",
            "taxonomy_group": "",
            "desc": "Transplant Surgery",
            "state": "CO",
            "license": "47369",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CO",
            "license": "47369",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "91171009",
            "state": "CO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "thomas.heffron@surgone.directbygreenway.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1601 E 19th Ave",
            "address_2": "Suite 5500",
            "city": "Denver",
            "state": "CO",
            "country_code": "US",
            "postal_code": "802181216",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.