Brock Alonzo, M.D.
NPI 1144649138ActiveIndividual· Ophthalmology, Glaucoma Specialist· Hamilton, MT
Ophthalmology, Glaucoma Specialist (M.D.) in Hamilton, Montana, trained at Oregon Health Sciences University School of Medicine (class of 2014). Part D covered 1,001 prescriptions written in 2024, 63% of them generic. Johnson & Johnson Surgical Vision, Inc. was the largest of 3 companies reporting payments in 2025, $117.42 in all, mostly food and beverage.
Overview
| NPI | 1144649138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 7, 2014 |
| Last updated in NPPES | Sep 11, 2025 |
| Certified by provider | Feb 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Glaucoma Specialist Primary | 207WX0009X | 77900 | MT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (MT); Practitioner - Ophthalmology (UT) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 1,001 · 1,456 30-day fills |
|---|---|
| Patients | 181 |
| Total drug cost | $32,534 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Ophthalmology |
Medical group
- Marcus Daly Memorial Hospital CorporationHamilton, MT · 97 clinicians
Hospital affiliation
- Bitterroot Health - Daly HospitalHamilton, MT
Industry payments (Open Payments)
- 2025$117.42 · 3 payments from 3 companies
- 2024$41.36 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Johnson & Johnson Surgical Vision, Inc. | $68.68 | 1 |
| Alcon Vision LLC | $28.33 | 1 |
| Rxsight Inc | $20.41 | 1 |
What the 2025 payments were for
- Food and Beverage$117.42 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records