Mackenzie Williamson
Family · Germantown, TNNPI 1285024950
Payments from drug & device makers
Across 375 payments — averaging $19.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$3K
- Amgen$740
- Medtronic$362
- Novartis$339
- Pfizer$338
- Philips North America LLC$310
- plus $2K from 19 others
What the payments were for
- Food & beverage$7,483100%
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 |
|---|---|---|
| Abbott | 152 | $3,025 |
| Amgen | 47 | $740 |
| Medtronic | 13 | $362 |
| Novartis | 18 | $339 |
| Pfizer | 23 | $338 |
| Philips North America LLC | 17 | $310 |
| E.r. Squibb & Sons, L.L.C. | 18 | $304 |
| Johnson & Johnson | 18 | $304 |
| AstraZeneca | 9 | $289 |
| Boehringer Ingelheim | 12 | $277 |
| Merck | 13 | $261 |
| Boston Scientific | 7 | $228 |
| Edwards Lifesciences | 1 | $114 |
| Bayer | 5 | $109 |
| Galderma Laboratories, L.p. | 1 | $107 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 5 | $89 |
| Novo Nordisk | 5 | $79 |
| Impulse Dynamics (USA) Inc. | 3 | $66 |
| Sanofi-aventis U.S. LLC | 2 | $43 |
| Regeneron Healthcare Solutions, Inc. | 1 | $23 |
| GSK | 1 | $18 |
| Irhythm Technologies, Inc. | 1 | $17 |
| Chiesi USA, Inc. | 1 | $14 |
| Heartflow, Inc. | 1 | $14 |
| Atricure, Inc. | 1 | $13 |
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.
- JOT DX$123
- FARXIGA$122
- SAPIEN 3 Ultra RESILIA$114
- Micra$105
How this compares
$7,483 in reported general payments places this provider in the 95th percentile of 6,706 family providers in Tennessee.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| EliquisApixaban | 64 | $50,669 |
| JardianceEmpagliflozin | 15 | $21,481 |
| EntrestoSacubitril/Valsartan | 28 | $21,016 |
| FarxigaDapagliflozin Propanediol | 13 | $15,327 |
| XareltoRivaroxaban | 13 | $13,383 |
| Ranolazine ErRanolazine | 24 | $1,633 |
| Metoprolol Succinate | 88 | $1,184 |
| Midodrine Hcl | 21 | $1,118 |
| Valsartan | 13 | $326 |
| Amiodarone Hcl | 16 | $320 |
| Atorvastatin Calcium | 31 | $297 |
| Spironolactone | 53 | $296 |
| ClopidogrelClopidogrel Bisulfate | 32 | $291 |
| Losartan Potassium | 35 | $289 |
| Carvedilol | 58 | $261 |
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 |
|---|---|---|
| PfizerEliquis | $338 | $50,66964 claims |
| Boehringer IngelheimJardiance | $277 | $21,48115 claims |
| NovartisEntresto | $339 | $21,01628 claims |
| AstraZenecaFarxiga | $289 | $15,32713 claims |
| Johnson & JohnsonXarelto | $304 | $13,38313 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 95th percentile of 6,706 family providers in Tennessee.
Other family in Germantown
- Chantil JeffreysGermantown$195K
- Jennifer McKeeGermantown$81K
- Laura BargerGermantown$25K
- Melissa BarnesGermantown$19K
- Stacy BrownMt Juliet$719K
- Dana WebberKnoxville$499K
- Brandy BiedermanHixson$448K
- Cynthia MillerMurfreesboro$384K
- Tamera ThoenerNashville$254K
- April SwonerHermitage$246K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.