Kenneth Guthrie
Optometrist · Oklahoma City, OKNPI 1558414904
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (57.0%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. Alk-abello, Inc accounts for 89.0% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2023 at $1,774 and has fallen 97.4% since, to $46 in 2025. Among optometrist clinicians in OK with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 34 payments — averaging $204.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alk-abello, Inc$6K
- NEW World Medical,inc.$218
- Johnson & Johnson Vision Care, Inc.$189
- Glaukos Corporation$151
- Alcon$112
- Rxsight Inc$66
- plus $30 from 1 others
What the payments were for
- Consulting fees$3,96057%
- Speaking & faculty fees$2,22032%
- Food & beverage$76511%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Alk-abello, Inc | 14 | $6,180 |
| NEW World Medical,inc. | 2 | $218 |
| Johnson & Johnson Vision Care, Inc. | 7 | $189 |
| Glaukos Corporation | 1 | $151 |
| Alcon | 8 | $112 |
| Rxsight Inc | 1 | $66 |
| AstraZeneca | 1 | $30 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Grastek$1,530
- Odactra$1,530
- Ragwitek$1,530
- IACCESS$151
- iStent inject W$151
- Kahook Dual Blade$119
- Clearpath$119
- Ahmed Glaucoma Valve$119
- Streamline$119
How this compares
$6,945 in reported general payments places this provider in the 95th percentile of 714 optometrist providers in Oklahoma.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Travoprost | 34 | $6,458 |
| Latanoprost | 89 | $782 |
Paid to pharmacies, not to this prescriber.
Other optometrist in Oklahoma City
- Joseph PhillipsOklahoma City$52K
- Scott ForesterOklahoma City$17K
- Trent PittOklahoma City$15K
- Kong ChangOklahoma City$7K
- Bradley DanielOklahoma City$7K
- Myranda PartinOklahoma City$7K
- Trevor ConklinOklahoma City$7K
- Carissa BeaudreauOklahoma City$6K
- Colby RicksOklahoma City$6K
- Rachel CaywoodOklahoma City$6K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.