David Folden, MD
Ophthalmology · Coon Rapids, MNNPI 1912151929
Payments from drug & device makers
Across 17 payments — averaging $73.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Katena Products, Inc. (dba Corza Medical)$494
- Alcon$343
- Johnson & Johnson Surgical Vision, Inc.$242
- The Cameron-ehlen Group, Inc.$144
- Rxsight Inc$26
Across 1 payment — averaging $17,250 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Lensar, Inc.$17K
What the payments were for
- Royalty or licence$49440%
- Speaking & faculty fees$262%
- Food & beverage$72858%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Katena Products, Inc. (dba Corza Medical) | 6 | $494 |
| Alcon | 5 | $343 |
| Johnson & Johnson Surgical Vision, Inc. | 2 | $242 |
| The Cameron-ehlen Group, Inc. | 3 | $144 |
| Rxsight Inc | 1 | $26 |
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.
- katena$281
- Tecnis Simplicity$144
- Clareon PanOptix Pro$116
- ARGOS$103
How this compares
$1,248 in reported general payments places this provider in the 70th percentile of 330 ophthalmology providers in Minnesota.
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 |
|---|---|---|
| Prednisolone Acetate | 313 | $12,230 |
| Ketorolac Tromethamine | 106 | $2,410 |
| Ofloxacin | 95 | $2,074 |
| Brimonidine Tartrate | 12 | $683 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 17 | $320 |
| Latanoprost | 18 | $286 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Coon Rapids
- George WandlingCoon Rapids$383K
- Edwin RyanMinneapolis$9.6M
- Richard LindstromBloomington$9M
- Mark LobanoffSt Louis Park$7M
- Robert MittraMinneapolis$5.1M
- David ParkeMinneapolis$4.5M
- Yun-Sen ChuBloomington$1.7M
- Deborah RistvedtAlexandria$1.3M
- John DaviesMinneapolis$1.3M
- Sundeep DevMinneapolis$673K
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.