Michael Tan, MD
Internal Medicine · Morristown, TNNPI 1669499208
Payments from drug & device makers
Across 133 payments — averaging $20.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$525
- Novo Nordisk$370
- Sunovion Pharmaceuticals Inc.$362
- UCB, Inc.$243
- Abiomed$200
- Novartis$113
- plus $906 from 22 others
What the payments were for
- Food & beverage$2,58295%
- Education$1385%
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 | 29 | $525 |
| Novo Nordisk | 15 | $370 |
| Sunovion Pharmaceuticals Inc. | 19 | $362 |
| UCB, Inc. | 4 | $243 |
| Abiomed | 4 | $200 |
| Novartis | 6 | $113 |
| Merck | 5 | $83 |
| Sumitomo Pharma America, Inc. | 5 | $80 |
| Biogen | 5 | $80 |
| AstraZeneca | 5 | $73 |
| Esperion Therapeutics, Inc. | 4 | $70 |
| Amarin Pharma, Inc. | 4 | $62 |
| Bayer | 3 | $50 |
| E.r. Squibb & Sons, L.L.C. | 3 | $49 |
| GSK | 3 | $45 |
| Pfizer | 3 | $41 |
| Otsuka America Pharmaceutical, Inc. | 2 | $41 |
| Paratek Pharmaceuticals, Inc. | 2 | $35 |
| Radius Health, Inc. | 2 | $29 |
| Neurocrine Biosciences, Inc. | 1 | $26 |
| AbbVie(2 entities) | 2 | $26 |
| Abbott | 1 | $20 |
| Boston Scientific | 1 | $19 |
| Phathom Pharmaceuticals, Inc. | 1 | $17 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $16 |
| Avanir Pharmaceuticals, Inc. | 1 | $16 |
| Lilly USA, LLC | 1 | $16 |
| Eisai Inc. | 1 | $14 |
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
$2,719 in reported general payments places this provider in the 80th percentile of 2,216 internal medicine 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 |
|---|---|---|
| EliquisApixaban | 587 | $199,474 |
| JardianceEmpagliflozin | 166 | $97,341 |
| XareltoRivaroxaban | 228 | $77,233 |
| XifaxanRifaximin | 20 | $31,925 |
| JanuviaSitagliptin Phosphate | 41 | $25,045 |
| FarxigaDapagliflozin Propanediol | 66 | $20,747 |
| MyrbetriqMirabegron | 36 | $14,283 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 247 | $13,315 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 32 | $12,952 |
| Donepezil Hcl | 469 | $11,648 |
| TrulicityDulaglutide | 35 | $11,330 |
| EntrestoSacubitril/Valsartan | 26 | $11,253 |
| Atorvastatin Calcium | 900 | $11,207 |
| Levothyroxine Sodium | 855 | $9,789 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 466 | $8,952 |
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 | $41 | $199,474587 claims |
| Johnson & JohnsonXarelto, Invokana | $525 | $84,057240 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan | $16 | $31,92520 claims |
| MerckJanuvia | $83 | $25,04541 claims |
| AstraZenecaFarxiga | $73 | $20,74766 claims |
| GSKTrelegy Ellipta | $45 | $12,95232 claims |
| Lilly USA, LLCTrulicity | $16 | $11,33035 claims |
| NovartisEntresto | $113 | $11,25326 claims |
| AbbVieLinzess | $26 | $6,45411 claims |
| Sumitomo Pharma America, Inc.Gemtesa | $80 | $6,16225 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 80th percentile of 2,216 internal medicine providers in Tennessee.
Other internal medicine in Morristown
- Paul CardaliMorristown$144K
- Mark McKenzieChattanooga$11.9M
- Bernard GrunstraBristol$6.4M
- Jewel WhiteKingsport$5.7M
- Judith WhiteKingsport$5.6M
- Obadias MarquezOoltewah$2.8M
- Amanda Moore MillerKnoxville$2.3M
- Rick WhilesBristol$1.5M
- John AndersonNashville$1.5M
- David MorinKingsport$1.4M
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.