Scott M. Guess, M.D.
NPI 1861543712ActiveIndividual· Ophthalmology· Missoula, MT
Ophthalmology (M.D.) with Rocky Mountain Eye Center PC, practicing in Missoula, Montana. In 2024 Medicare paid $3,824,281 for 1,159 patients, and Part D covered 505 of their prescriptions, 59% of them generic. Genentech USA, Inc. was the largest of 5 companies reporting payments in 2025, $139.48 in all, mostly food and beverage.
Overview
| NPI | 1861543712 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 16, 2007 |
| Last updated in NPPES | Aug 12, 2024 |
| Certified by provider | Aug 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 12260 | MT |
| Ophthalmology, Retina Specialist | 207WX0107X | 12260 | MT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,159 |
|---|---|
| Services billed | 50,979 across 64 procedure codes |
| Paid by Medicare | $3,824,281 |
Part D prescriptions in 2024
| Prescriptions (claims) | 505 · 842 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $13,507 |
| Generic share | 59% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- Rocky Mountain Eye Center PCMissoula, MT · 16 clinicians
Industry payments (Open Payments)
- 2025$139.48 · 7 payments from 5 companies
- 2024$162.06 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $30.62 | 2 |
| Astellas Pharma US Inc | $30.25 | 1 |
| Abbvie Inc. | $30.24 | 2 |
| Alcon Vision LLC | $26.51 | 1 |
| Harrow Eye, LLC | $21.86 | 1 |
What the 2025 payments were for
- Food and Beverage$139.48 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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