Garry Grant, MD
Garry Grant, MD is a Retina Specialist (Ophthalmology) Physician in Eureka, MT, registered under NPI 1962497677. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 2055 MUD CREEK RD, Eureka, MT 59917. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| MED-PHYS-LIC-57501 | MT | Retina Specialist (Ophthalmology)… primary |
This provider holds licence MED-PHYS-LIC-57501 issued in MT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Retina Specialist covers
An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases. NUCC Health Care Provider Taxonomy, code 207WX0107X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1962497677 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 19, 2005 |
| Last updated | Nov 18, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MD |
| Practice address |
2055 MUD CREEK RD Eureka, MT 59917 (812) 424-2020 Fax (812) 424-3000 |
| Mailing address |
PO BOX 2450 Eureka, MT 59917 |
| Other identifiers |
000000042320
· Other 64878010 · Medicaid (KY) 200000980 · Medicaid (IN) 259157 · Other 4500741 · Other |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 6 | 2 | 4 | 9 | 7 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 3 | 2 | 8 | 9 | 5 | 6 | 5 |
Sum = 73 · next multiple of 10 = 80 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.