Allison Weiffenbach, MD
Dermatology · Nashville, TNNPI 1043745474
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 93.7% of the total across 107 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 20 manufacturers, the largest accounting for just 18.6% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $1,011, 4.1 times the $245 reported in 2019. That places this record below the midpoint for dermatology clinicians in TN, where the typical reported total is $3,452.
Across 107 payments — averaging $24.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$486
- AbbVie$386
- Galderma Laboratories, L.p.$273
- Sun Pharmaceutical Industries Inc.$257
- UCB, Inc.$214
- Lilly USA, LLC$136
- plus $855 from 14 others
What the payments were for
- Food & beverage$2,44294%
- Education$1656%
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 |
|---|---|---|
| Johnson & Johnson | 24 | $486 |
| AbbVie | 12 | $386 |
| Galderma Laboratories, L.p. | 11 | $273 |
| Sun Pharmaceutical Industries Inc. | 8 | $257 |
| UCB, Inc. | 12 | $214 |
| Lilly USA, LLC | 6 | $136 |
| Novartis | 6 | $128 |
| Regeneron Healthcare Solutions, Inc. | 4 | $90 |
| E.r. Squibb & Sons, L.L.C. | 4 | $84 |
| Genentech USA, Inc. | 1 | $80 |
| Almirall LLC | 3 | $75 |
| Sanofi | 3 | $74 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 3 | $66 |
| VYNE Pharmaceuticals Inc. | 1 | $53 |
| Incyte Corporation | 2 | $48 |
| Dermavant Sciences, Inc. | 2 | $45 |
| Arcutis Biotherapeutics, Inc. | 2 | $42 |
| Amgen | 1 | $30 |
| Pfizer | 1 | $24 |
| Kyowa Kirin, 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
$2,607 in reported general payments places this provider in the 45th percentile of 209 dermatology providers in Tennessee.
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 |
|---|---|---|
| Clobetasol Propionate | 12 | $1,077 |
| Doxycycline Hyclate | 18 | $597 |
| Triamcinolone Acetonide | 35 | $573 |
| Ketoconazole | 41 | $538 |
| Minoxidil | 12 | $67 |
| Hydrocortisone | 14 | $61 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Nashville
- Kimberly VincentNashville$1.5M
- Adrian RodriguezNashville$1.1M
- Michael GoldNashville$748K
- David HorowitzNashville$34K
- Thomas DayNashville$16K
- Jeffrey ZwernerNashville$15K
- Shi ChengNashville$10K
- Allyson Brooke EasthamNashville$9K
- Ashley MatthewsNashville$9K
- Heidi RindererNashville$8K
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.