Active NPI
Thomas Stephen Dunham, O.D.
- Optometrist
- Grand Forks, ND
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Optometrist
- License
- 421
- Practice address
- 1820 S 42ND St
Grand Forks, ND 58201-5712 - Phone
- (701) 775-3151
- Fax
- (701) 775-3153
- NPI assigned
- Jun 30, 2005
- Last updated
- Nov 21, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Optometrist | 152W00000X | 421 | ND | Primary |
Addresses
Primary practice location
1820 S 42ND St
Grand Forks, ND 58201-5712
Mailing address
PO Box 365
McVille, ND 58254-0365
Phone (701) 322-5111
Other practice location 1
104 E Highway 66 Ste 102
Drayton, ND 58225-4804
Phone (701) 454-3340
Other practice location 2
116 S Main St
McVille, ND 58254-4208
Phone (701) 322-5111
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: No
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Optometry
- Education
- Ohio State University - College of Optometry, 1983
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
104 E Hwy 66
Suite 102
Drayton, ND 58225-4804
Phone (701) 454-3340
116 S Main St
McVille, ND 58254-4208
Phone (701) 322-5111
1820 S 42ND St
Grand Forks, ND 58201-5712
Phone (701) 775-3151
Merit-based Incentive Payment System (MIPS)
- Final score
- 75 of 100
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Cataract surgery | 27 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Nelson-Griggs District Health Unit | Current | Accepting new patients | |
| North Dakota Eye Clinic, LTD | Current | Accepting new patients | |
| North Dakota Eye Clinic, LTD | Optometrist | Past | Accepting new patients |
| Drayton Eye Clinic | Past | Accepting new patients |
Locations
1820 S 42nd St
Grand Forks, ND 58201
Phone (701) 775-3151
3035 Demers Ave
Grand Forks, ND 58201
Phone (701) 746-6694
Interoperability endpoints
- tdunham@ndec.intellechartdirect.net
Organizations & group practices 4
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.
-
- Specialist
- Grand Forks, ND
- NPI 1972563815
-
- Clinic/Center
- Drayton, ND
- NPI 1679849236
-
- Public Health or Welfare Agency
- McVille, ND
- NPI 1598741381
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1120089600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763683200000",
"number": "1982601357",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 365",
"city": "MCVILLE",
"state": "ND",
"postal_code": "582540365",
"telephone_number": "701-322-5111",
"fax_number": "701-322-5111"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1820 S 42ND ST",
"city": "GRAND FORKS",
"state": "ND",
"postal_code": "582015712",
"telephone_number": "701-775-3151",
"fax_number": "701-775-3153"
}
],
"practiceLocations": [
{
"address_1": "104 E Highway 66 Ste 102",
"address_purpose": "LOCATION",
"city": "Drayton",
"state": "ND",
"postal_code": "582254804",
"country_code": "US",
"telephone_number": "701-454-3340",
"fax_number": "701-775-3153",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "116 S Main St",
"address_purpose": "LOCATION",
"city": "McVille",
"state": "ND",
"postal_code": "582544208",
"country_code": "US",
"telephone_number": "701-322-5111",
"fax_number": "701-322-5111",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "DUNHAM",
"first_name": "THOMAS",
"middle_name": "STEPHEN",
"credential": "O.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2005-06-30",
"last_updated": "2025-11-21",
"certification_date": "2025-11-21",
"status": "A"
},
"taxonomies": [
{
"code": "152W00000X",
"taxonomy_group": "",
"desc": "Optometrist",
"state": "ND",
"license": "421",
"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 Nov 21, 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.