Active NPI
Thomas G Wambach, M.D.
- Surgery Physician
- Grand Forks, ND
National Provider Identifier
1558462945
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- 22927
- Practice address
- 1300 S. Columbia Rd
Grand Forks, ND 58201 - Phone
- (701) 780-6000
- NPI assigned
- Sep 26, 2006
- 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 |
|---|---|---|---|---|
| Surgery Physician | 208600000X | 45494 | MN | |
| Surgery Physician | 208600000X | 22927 | ND | Primary |
Addresses
Primary practice location
1300 S. Columbia Rd
Grand Forks, ND 58201
Mailing address
PO Box 13780
Grand Forks, ND 58208
Phone (701) 780-1891
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in ND
- 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 North Dakota School of Medicine, 1993
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1200 S Columbia Rd
Grand Forks, ND 58201-4036
Phone (701) 780-5000
1380 S Columbia Rd
Grand Forks, ND 58201-4059
Phone (701) 795-2000
Hospital & facility affiliations
- Altru Hospital
- Riverview Hospital
- Sanford Thief River Falls Medical Center
- Unity Medical Center
- Cavalier County Memorial Hospital Association
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 22927 | ND | MD | Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Altru Health System | Surgery | Current | Accepting new patients |
| Altru Health System | Current | Accepting new patients | |
| Altru Health System | Current | Accepting new patients |
Locations
600 Main Ave S
Birchdale, MN 56623
Phone (218) 634-1655
1380 S Columbia Rd
Grand Forks, ND 58201
Phone (701) 795-2000
1300 S Columbia Rd
Grand Forks, ND 58201
Phone (701) 780-2300
Organizations & group practices 3
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.
-
- Ambulance
- Grand Forks, ND
- NPI 1114485315
-
- General Acute Care Hospital
- Grand Forks, ND
- NPI 1154346161
Hospital & facility affiliations 14
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Grand Forks, ND
- NPI 1154346161
-
- Critical Access Hospital
- Langdon, ND
- NPI 1750328662
-
- Critical Access Hospital
- Grafton, ND
- NPI 1245216852
-
- Critical Access Hospital
- Crookston, MN
- NPI 1477525566
-
- Multi-Specialty Clinic/Center
- Thief River Falls, MN
- NPI 1740473800
Hospital
-
- Multi-Specialty Clinic/Center
- East Grand Forks, MN
- NPI 1811918436
Hospital
-
- Rural Health Clinic/Center
- Red Lake Falls, MN
- NPI 1841581212
Hospital
-
- Critical Access Hospital
- Thief River Falls, MN
- NPI 1043218753
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1159228800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1758240000000",
"number": "1558462945",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 13780",
"city": "GRAND FORKS",
"state": "ND",
"postal_code": "58208",
"telephone_number": "701-780-1891"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1300 S. COLUMBIA RD",
"city": "GRAND FORKS",
"state": "ND",
"postal_code": "58201",
"telephone_number": "701-780-6000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WAMBACH",
"first_name": "THOMAS",
"middle_name": "G",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-09-26",
"last_updated": "2025-09-19",
"certification_date": "2025-09-19",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "MN",
"license": "45494",
"primary": false
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "ND",
"license": "22927",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Grand Forks, ND
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 19, 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.
- 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.