Matthew Caldwell, MD
Cornea and External Diseases Specialist · San Antonio, TXNPI 1669594859
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 39 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 15 manufacturers, the largest accounting for just 21.1% — the pattern of someone who eats at a lot of different presentations.
Across 39 payments — averaging $22.47 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$184
- Biotissue Holdings Inc.$125
- Rxsight Inc$110
- Tearlab Corp$64
- Tarsus Pharmaceuticals, Inc.$58
- Oyster Point Pharma, Inc.$52
- plus $283 from 9 others
Across 2 payments — averaging $120,000 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.
- Carl Zeiss Meditec, Inc.$240K
What the payments were for
- Food & beverage$876100%
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 |
|---|---|---|
| Alcon | 7 | $184 |
| Biotissue Holdings Inc. | 6 | $125 |
| Rxsight Inc | 3 | $110 |
| Tearlab Corp | 4 | $64 |
| Tarsus Pharmaceuticals, Inc. | 2 | $58 |
| Oyster Point Pharma, Inc. | 3 | $52 |
| Idorsia Pharmaceuticals US Inc | 3 | $50 |
| Glaukos Corporation | 2 | $48 |
| AbbVie | 2 | $47 |
| Bausch & Lomb Americas Inc. | 2 | $42 |
| Johnson & Johnson Surgical Vision, Inc. | 1 | $23 |
| Amgen | 1 | $20 |
| Thea Pharma Inc. | 1 | $20 |
| Kedrion Biopharma, Inc. | 1 | $18 |
| Dompe US, Inc. | 1 | $16 |
How this compares
$876 in reported general payments places this provider in the 55th percentile of 35 cornea and external diseases specialist providers in Texas.
See all cornea and external diseases specialist providers in Texas →
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 |
|---|---|---|
| RestasisCyclosporine | 45 | $74,465 |
| XiidraLifitegrast | 39 | $41,875 |
| Cyclosporine | 25 | $25,507 |
| Prednisolone Acetate | 413 | $13,519 |
| TyrvayaVarenicline Tartrate | 18 | $13,191 |
| LumiganBimatoprost | 17 | $9,741 |
| ZirganGanciclovir | 16 | $7,074 |
| Alphagan PBrimonidine Tartrate | 11 | $5,683 |
| Latanoprost | 372 | $4,451 |
| Ketorolac Tromethamine | 250 | $4,373 |
| TobradexTobramycin/Dexamethasone | 16 | $3,876 |
| Timolol Maleate | 97 | $3,519 |
| Ofloxacin | 261 | $2,752 |
| ValacyclovirValacyclovir Hcl | 16 | $2,248 |
| MoxifloxacinMoxifloxacin Hcl | 97 | $1,996 |
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 |
|---|---|---|
| AbbVieRestasis, Lumigan, Alphagan P | $47 | $89,89073 claims |
| Bausch & Lomb Americas Inc.Xiidra, Zirgan | $42 | $48,94955 claims |
| Oyster Point Pharma, Inc.Tyrvaya | $52 | $13,19118 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. Against peers, this provider's reported payments sit in the 55th percentile of 35 cornea and external diseases specialist providers in Texas.
Other cornea and external diseases specialist in San Antonio
- Karima KhimaniSan Antonio$1K
- Golshan LatifiyaghinSan Antonio$352
- Mamta AgarwalSan Antonio$310
- Forrest SwannWaco$111K
- Stella KimHouston$58K
- Rachel GelmanMcAllen$54K
- Ravi PatelRound Rock$9K
- Jeremy BartleyDallas$8K
- Margaret Wang FrenchDallas$5K
- Elizabeth UriasHouston$5K
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.