Mark Christensen, DO
Family Medicine · New Lenox, ILNPI 1942314257
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 24 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 11 manufacturers reported payments, led by Johnson & Johnson at 50.1% of the total. Reporting peaked in 2022 at $347 and has fallen 94.7% since, to $19 in 2025.
Across 24 payments — averaging $31.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$374
- Novo Nordisk$96
- Lilly USA, LLC$80
- Abbott$53
- Medtronic$25
- E.r. Squibb & Sons, L.L.C.$23
- plus $96 from 5 others
Across 25 payments — averaging $83,662 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.
- Roche Diabetes Care, Inc.$2.1M
What the payments were for
- Food & beverage$747100%
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 | 5 | $374 |
| Novo Nordisk | 5 | $96 |
| Lilly USA, LLC | 4 | $80 |
| Abbott | 3 | $53 |
| Medtronic | 1 | $25 |
| E.r. Squibb & Sons, L.L.C. | 1 | $23 |
| Pfizer | 1 | $23 |
| Exact Sciences | 1 | $22 |
| Astellas Pharma US Inc | 1 | $19 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $17 |
| Currax Pharmaceuticals LLC | 1 | $16 |
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.
- XARELTO$229
How this compares
$747 in reported general payments places this provider in the 70th percentile of 4,116 family medicine providers in Illinois.
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 |
|---|---|---|
| OzempicSemaglutide | 83 | $103,145 |
| MounjaroTirzepatide | 54 | $55,022 |
| JardianceEmpagliflozin | 19 | $32,419 |
| JanuviaSitagliptin Phosphate | 16 | $26,182 |
| DuleraMometasone/Formoterol | 11 | $6,170 |
| Levothyroxine Sodium | 432 | $5,975 |
| Atorvastatin Calcium | 426 | $4,617 |
| Wixela InhubFluticasone Propion/Salmeterol | 21 | $4,330 |
| Omeprazole | 217 | $3,399 |
| SymbicortBudesonide/Formoterol Fumarate | 13 | $2,940 |
| Pantoprazole Sodium | 219 | $2,926 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 12 | $2,892 |
| Lisinopril | 351 | $2,857 |
| Amlodipine Besylate | 355 | $2,523 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 91 | $2,509 |
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 |
|---|---|---|
| Novo NordiskOzempic | $96 | $103,14583 claims |
| Lilly USA, LLCMounjaro | $80 | $55,02254 claims |
| PfizerPaxlovid | $23 | $1,37517 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 70th percentile of 4,116 family medicine providers in Illinois.
Other family medicine in New Lenox
- Frank PhillipsChicago$1.6M
- Peter TothSterling$1.4M
- Bradley TorphyChicago$1.3M
- Jeffrey RoyceRockford$890K
- Anthony AuriemmaWestmont$788K
- Manfred ManGurnee$764K
- Barbara BellarOakbrook Terrace$599K
- Bernie RancheroAltamont$533K
- Sandy GibsonChicago$309K
- Mandy GittlerChicago$204K
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.