DR. DEREK P VANVEEN OD
Prescription History 1518177708
Optometrist in Easley, SC
What does Dr. Vanveen prescribe?
In 2024, Dr. Vanveen wrote 240 Medicare prescriptions for 10 medications. The most prescribed was Latanoprost, with 88 prescriptions for 27 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Vanveen prescribes.
Medications 10 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other South Carolina prescribers.
What it is used for
Latanoprost is used to treat high pressure inside the eye due to glaucoma (open angle type) or other eye diseases (such as ocular hypertension).
Compared with South Carolina prescribers
Dr. Vanveen wrote 88 prescriptions for Latanoprost, about half as often as the typical South Carolina prescriber of it (162). Medicare paid $5.99 per fill, versus $10.67 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat open-angle glaucoma or high fluid pressure in the eye.
Compared with South Carolina prescribers
Dr. Vanveen wrote 25 prescriptions for Brimonidine Tartrate, about 31% as often as the typical South Carolina prescriber of it (81). Medicare paid $14.62 per fill, versus $31.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Bimatoprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with South Carolina prescribers
Dr. Vanveen wrote 22 prescriptions for Lumigan, about 34% as often as the typical South Carolina prescriber of it (66). Medicare paid $527.85 per fill, versus $471.32 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat conditions involving swelling (inflammation) of the eyes and to treat or prevent bacterial eye infections.
Compared with South Carolina prescribers
Dr. Vanveen wrote 19 prescriptions for Neomycin-Polymyxin-Dexameth, about half as often as the typical South Carolina prescriber of it (45). Medicare paid $12.87 per fill, versus $11.20 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat dry eye disease.
Compared with South Carolina prescribers
Dr. Vanveen wrote 19 prescriptions for Xiidra, about 70% as often as the typical South Carolina prescriber of it (27). Medicare paid $857.37 per fill, versus $1,096.63 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension).
Compared with South Carolina prescribers
Dr. Vanveen wrote 18 prescriptions for Timolol Maleate, about 23% as often as the typical South Carolina prescriber of it (78). Medicare paid $8.41 per fill, versus $13.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a quinolone antibiotic used for eye infections.
Compared with South Carolina prescribers
Dr. Vanveen wrote 14 prescriptions for Moxifloxacin, about 24% as often as the typical South Carolina prescriber of it (58). Medicare paid $18.79 per fill, versus $21.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product contains two drugs used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension).
Compared with South Carolina prescribers
Dr. Vanveen wrote 12 prescriptions for Dorzolamide-Timolol, about 12% as often as the typical South Carolina prescriber of it (101). Medicare paid $13.71 per fill, versus $19.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain eye conditions due to inflammation or injury.
Compared with South Carolina prescribers
Dr. Vanveen wrote 12 prescriptions for Loteprednol Etabonate, about 42% as often as the typical South Carolina prescriber of it (29). Medicare paid $106.77 per fill, versus $146.38 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain eye conditions due to inflammation or injury.
Compared with South Carolina prescribers
Dr. Vanveen wrote 11 prescriptions for Prednisolone Acetate, about 10% as often as the typical South Carolina prescriber of it (106). Medicare paid $37.62 per fill, versus $41.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Vanveen’s prescriptions
What does Dr. Vanveen prescribe most?
In 2024 Medicare Part D data, Dr. Vanveen's most prescribed medications were Latanoprost (88), Brimonidine Tartrate (25) and Lumigan (22).
How does Dr. Vanveen's prescribing compare with other South Carolina prescribers?
Of the 10 medications with a state comparison, Dr. Vanveen prescribes 10 less often than the typical South Carolina prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Vanveen prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the South Carolina prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
