Alexander Baten-Tschan
Glaucoma Specialist · Bethesda, MDNPI 1205333457
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (51.8%), food and beverage and education — rather than concentrated in one kind of arrangement. Alcon accounts for 71.7% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2022 at $1,364 and has fallen 64.7% since, to $481 in 2025.
Across 30 payments — averaging $68.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$1K
- AbbVie$187
- Tarsus Pharmaceuticals, Inc.$62
- Bausch & Lomb Americas Inc.$57
- Dompe US, Inc.$55
- Harrow Eye, LLC$46
- plus $173 from 6 others
What the payments were for
- Travel & lodging$1,06052%
- Food & beverage$96947%
- Education$181%
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 |
|---|---|---|
| Alcon | 10 | $1,468 |
| AbbVie | 4 | $187 |
| Tarsus Pharmaceuticals, Inc. | 2 | $62 |
| Bausch & Lomb Americas Inc. | 3 | $57 |
| Dompe US, Inc. | 2 | $55 |
| Harrow Eye, LLC | 2 | $46 |
| ANI Pharmaceuticals, Inc. | 2 | $46 |
| Astellas Pharma US Inc | 1 | $33 |
| Amgen | 1 | $32 |
| Thea Pharma Inc. | 1 | $24 |
| Oyster Point Pharma, Inc. | 1 | $20 |
| NEW World Medical,inc. | 1 | $18 |
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.
How this compares
Too few glaucoma specialist providers in Marylandto place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| LumiganBimatoprost | 76 | $44,278 |
| RhopressaNetarsudil Mesylate | 64 | $33,555 |
| CombiganBrimonidine Tartrate/Timolol | 31 | $14,261 |
| SimbrinzaBrinzolamide/Brimonidine Tart | 41 | $14,057 |
| Brimonidine Tartrate | 202 | $12,534 |
| Prednisolone Acetate | 166 | $11,914 |
| Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol | 48 | $9,558 |
| Alphagan PBrimonidine Tartrate | 15 | $6,796 |
| VyzultaLatanoprostene Bunod | 13 | $6,647 |
| Travoprost | 37 | $6,470 |
| Latanoprost | 387 | $6,360 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 289 | $5,421 |
| Timolol Maleate | 237 | $4,386 |
| Brinzolamide | 15 | $3,121 |
| Dorzolamide-TimololDorzolamide/Timolol/Pf | 17 | $3,059 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieLumigan, Combigan, Alphagan P | $187 | $65,335122 claims |
| AlconSimbrinza | $1,468 | $14,05741 claims |
| Bausch & Lomb Americas Inc.Vyzulta | $57 | $6,64713 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. There are too few glaucoma specialist providers in Marylandon file to place this against a meaningful peer group, so we don't.
Other glaucoma specialist in Bethesda
- Russell HuangBethesda$3K
- Jonathan KatzLutherville$10K
- Osamah SaeediBaltimore$10K
- Alanna JamesBowie$5K
- Heather NestiAnnapolis$5K
- Katherine FallanoBaltimore$2K
- Teresa HoranBaltimore$2K
- Lisa TomChevy Chase$2K
- Lindsay DawsonChevy Chase$2K
- Elyse McGlumphyBaltimore$2K
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.