Shagun Dhaliwal, MD
Cornea and External Diseases Specialist · Flower Mound, TXNPI 1902211667
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 14 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 8 manufacturers reported payments, led by Alcon at 50.7% of the total. Reporting peaked in 2019 at $244 and has fallen 92.9% since, to $17 in 2025. That places this record below the midpoint for cornea and external diseases specialist clinicians in TX, where the typical reported total is $821.
Across 14 payments — averaging $27.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$194
- AbbVie$55
- Dompe US, Inc.$29
- Johnson & Johnson Surgical Vision, Inc.$27
- Aerie Pharmaceuticals, Inc.$25
- Mallinckrodt Enterprises LLC$23
- plus $30 from 2 others
What the payments were for
- Food & beverage$383100%
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 | 4 | $194 |
| AbbVie(2 entities) | 3 | $55 |
| Dompe US, Inc. | 2 | $29 |
| Johnson & Johnson Surgical Vision, Inc. | 1 | $27 |
| Aerie Pharmaceuticals, Inc. | 1 | $25 |
| Mallinckrodt Enterprises LLC | 1 | $23 |
| Astellas Pharma US Inc | 1 | $22 |
| NEW World Medical,inc. | 1 | $8 |
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.
- ReSTOR$148
How this compares
$383 in reported general payments places this provider in the 30th 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 |
|---|---|---|
| Prednisolone Acetate | 29 | $1,682 |
| Latanoprost | 86 | $820 |
| Ketorolac Tromethamine | 29 | $605 |
| Ofloxacin | 43 | $570 |
| Brimonidine Tartrate | 13 | $570 |
| Timolol Maleate | 47 | $487 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 19 | $224 |
Paid to pharmacies, not to this prescriber.
Other cornea and external diseases specialist in Flower Mound
- Forrest SwannWaco$111K
- Stella KimHouston$58K
- Rachel GelmanMcAllen$54K
- Ravi PatelRound Rock$9K
- Jeremy BartleyDallas$8K
- Margaret Wang FrenchDallas$5K
- Elizabeth UriasHouston$5K
- Shaam MahasnehMansfield$4K
- Margaret HubbellTexarkana$4K
- Ardalan SharifiGalveston$3K
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.