Active NPI
Thomas G Heffron, MD
- Transplant Surgery Physician
- Denver, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Transplant Surgery Physician
- License
- 47369
- 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, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 91171009 | Medicaid | CO |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- General Surgery
- 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
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
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 1-10 |
| Hernia repair (minimally invasive) | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 47369 | CO | MD | Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Surgone, PC | Transplant Surgery | Current | Accepting new patients |
| Traumaone, PLLC | Current | Accepting new patients | |
| Portercare Adventist Health System | Current | Accepting new patients | |
| Surgone, PC | Surgery | Current | Accepting new patients |
| Portercare Adventist Health System | Current | Accepting new patients | |
| Portercare Adventist Health System | Current | 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
- 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.
-
dba Affiliated Ear, Nose & Throat Physicians
- Otolaryngology Physician
- Greenwood Village, CO
- NPI 1760761928
-
- Trauma Surgery Physician
- Greenwood Village, CO
- NPI 1457772162
-
dba AdventHealth Medical Group Urology at Lakewood
- Urology Physician
- Lakewood, CO
- NPI 1942165626
-
dba Orcr Ortho Lone Tree
- Sports Medicine (Internal Medicine) Physician
- Lone Tree, CO
- NPI 1982213419
-
- Surgery Physician
- Greenwood Village, CO
- NPI 1841747128
-
dba Adventhealth Porter
- General Acute Care Hospital
- Denver, CO
- NPI 1801800594
-
dba AdventHealth Medical Group Surgical Oncology at Parker
- Surgical Oncology Physician
- Parker, CO
- NPI 1992549745
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Adventhealth Porter
- General Acute Care Hospital
- Denver, CO
- NPI 1801800594
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 21, 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.