Nathan Nartker, MD
Dermatology · Grand Rapids, MINPI 1598269631
Payments from drug & device makers
Across 365 payments — averaging $21.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$2K
- Sanofi$995
- Regeneron Healthcare Solutions, Inc.$697
- Sun Pharmaceutical Industries Inc.$580
- E.r. Squibb & Sons, L.L.C.$560
- Pfizer$511
- plus $3K from 19 others
What the payments were for
- Food & beverage$7,50398%
- Education$1842%
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 | 72 | $1,599 |
| Sanofi | 38 | $995 |
| Regeneron Healthcare Solutions, Inc. | 18 | $697 |
| Sun Pharmaceutical Industries Inc. | 28 | $580 |
| E.r. Squibb & Sons, L.L.C. | 26 | $560 |
| Pfizer | 49 | $511 |
| Arcutis Biotherapeutics, Inc. | 27 | $458 |
| Incyte Corporation | 18 | $438 |
| Novartis | 19 | $351 |
| Boehringer Ingelheim | 12 | $278 |
| Galderma Laboratories, L.p. | 10 | $271 |
| Amgen | 9 | $219 |
| LEO Pharma Inc. | 7 | $158 |
| UCB, Inc. | 6 | $100 |
| Dermavant Sciences, Inc. | 6 | $92 |
| Lilly USA, LLC | 5 | $89 |
| Fresenius Kabi USA, LLC | 2 | $68 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 3 | $54 |
| Kyowa Kirin, Inc. | 2 | $41 |
| Helsinn Therapeutics (U.S.), Inc. | 2 | $31 |
| Organon | 2 | $24 |
| Almirall LLC | 1 | $22 |
| Mayne Pharma Commercial LLC | 1 | $19 |
| Verrica Pharmaceuticals Inc. | 1 | $16 |
| Olympus America Inc. | 1 | $15 |
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
$7,687 in reported general payments places this provider in the 70th percentile of 404 dermatology providers in Michigan.
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 |
|---|---|---|
| Dupixent PenDupilumab | 50 | $195,444 |
| Clobetasol Propionate | 260 | $8,084 |
| Fluorouracil | 49 | $2,713 |
| Tacrolimus | 24 | $2,425 |
| Ketoconazole | 107 | $2,337 |
| Doxycycline Hyclate | 122 | $1,963 |
| Triamcinolone Acetonide | 151 | $1,340 |
| Metronidazole | 25 | $1,278 |
| Tretinoin | 15 | $855 |
| MethotrexateMethotrexate Sodium | 15 | $702 |
| Fluconazole | 38 | $606 |
| Clindamycin Phosphate | 21 | $450 |
| Hydrocortisone | 73 | $409 |
| Ammonium Lactate | 16 | $373 |
| Hydroxychloroquine Sulfate | 17 | $278 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Grand Rapids
- Kurt AshackGrand Rapids$207K
- David OberlinGrand Rapids$103K
- Stephen CahillGrand Rapids$15K
- Johann GudjonssonAnn Arbor$15.9M
- Ali MoiinTroy$9.9M
- Linda Stein GoldWest Bloomfield$7.5M
- Wendy McFaldaClarkston$3.6M
- Kristi HawleyCaledonia$2.5M
- Brent BoyceSebewaing$2.2M
- David AltmanWarren$1.9M
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.