Tan Nguyen, MD
Procedural Dermatology · Upland, CANPI 1144273491
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.5% of the total across 449 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 28 manufacturers, the largest accounting for just 18.2% — the pattern of someone who eats at a lot of different presentations.
Across 449 payments — averaging $22.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$2K
- LEO Pharma Inc.$2K
- Johnson & Johnson$1K
- Pfizer$926
- Incyte Corporation$661
- Regeneron$526
- plus $3K from 22 others
What the payments were for
- Food & beverage$9,23593%
- Education$7477%
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 |
|---|---|---|
| AbbVie | 109 | $1,814 |
| LEO Pharma Inc. | 104 | $1,738 |
| Johnson & Johnson | 43 | $1,164 |
| Pfizer | 44 | $926 |
| Incyte Corporation | 34 | $661 |
| Regeneron | 2 | $526 |
| Sun Pharmaceutical Industries Inc. | 15 | $442 |
| Novartis | 16 | $424 |
| Biofrontera Inc. | 13 | $300 |
| Sanofi | 10 | $299 |
| UCB, Inc. | 9 | $270 |
| Galderma Laboratories, L.p. | 8 | $200 |
| Dermavant Sciences, Inc. | 9 | $199 |
| Amgen | 4 | $129 |
| Lilly USA, LLC | 4 | $127 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 2 | $103 |
| Regeneron Healthcare Solutions, Inc. | 3 | $96 |
| Bristol Myers Squibb | 1 | $91 |
| E.r. Squibb & Sons, L.L.C. | 3 | $81 |
| EPI Health, LLC | 3 | $79 |
| Mayne Pharma Commercial LLC | 3 | $62 |
| Almirall LLC | 2 | $55 |
| Phadia US Inc. | 3 | $54 |
| Boehringer Ingelheim | 1 | $51 |
| Verrica Pharmaceuticals Inc. | 1 | $26 |
| Promius Pharma LLC | 1 | $25 |
| Bioventus LLC | 1 | $21 |
| Mission Pharmacal Company | 1 | $18 |
How this compares
$9,982 in reported general payments places this provider in the 75th percentile of 108 procedural dermatology providers in California.
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 |
|---|---|---|
| Cosentyx Unoready PenSecukinumab | 15 | $107,675 |
| Dupixent PenDupilumab | 24 | $86,399 |
| Humira(Cf) PenAdalimumab | 12 | $79,769 |
| Clobetasol Propionate | 40 | $2,977 |
| Tretinoin | 24 | $2,032 |
| Triamcinolone Acetonide | 97 | $1,664 |
| Metronidazole | 19 | $1,424 |
| Mometasone Furoate | 71 | $1,414 |
| Ketoconazole | 74 | $1,061 |
| Fluocinonide | 25 | $870 |
| Betamethasone Dipropionate | 21 | $864 |
| Doxycycline Hyclate | 14 | $380 |
| Betamethasone Diprop AugmentedBetamethasone/Propylene Glyc | 23 | $224 |
| Terbinafine Hcl | 20 | $109 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 11 | $104 |
Paid to pharmacies, not to this prescriber.
Other procedural dermatology in Upland
- Ronald LiskanichUpland$24K
- Gloria StevensUpland$23K
- Diem PhamUpland$10K
- Andrea PassalacquaUpland$3K
- Sam Khalifianla Mesa$3.5M
- Sabrina FabiSan Diego$3.1M
- Natasha MesinkovskaMission Viejo$499K
- Jeanette BlackLos Angeles$492K
- Mitchel GoldmanSan Diego$425K
- Rebecca FitzgeraldLos Angeles$230K
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.