Dan Tang, MD
Internal Medicine · Cambridge, MANPI 1992990394
Payments from drug & device makers
Across 249 payments — averaging $20.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Lilly USA, LLC$883
- Novo Nordisk$520
- Abbott$452
- AstraZeneca$419
- Boehringer Ingelheim$305
- Sanofi-aventis U.S. LLC$283
- plus $2K from 29 others
What the payments were for
- Food & beverage$5,05099%
- Education$401%
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 |
|---|---|---|
| Lilly USA, LLC | 45 | $883 |
| Novo Nordisk | 26 | $520 |
| Abbott | 20 | $452 |
| AstraZeneca(2 entities) | 19 | $419 |
| Boehringer Ingelheim | 13 | $305 |
| Sanofi-aventis U.S. LLC | 13 | $283 |
| Antares Pharma, Inc. | 12 | $246 |
| Xeris Pharmaceuticals, Inc. | 12 | $231 |
| Mannkind Corporation | 9 | $209 |
| Bayer | 9 | $208 |
| Johnson & Johnson(2 entities) | 9 | $152 |
| AbbVie | 7 | $128 |
| Corcept Therapeutics | 6 | $123 |
| Dexcom, Inc. | 5 | $94 |
| Medtronic(2 entities) | 4 | $80 |
| Tolmar, Inc. | 4 | $75 |
| Lifescan, Inc. | 3 | $69 |
| Merck | 4 | $62 |
| Sumitomo Pharma America, Inc. | 3 | $54 |
| Ultragenyx Pharmaceutical Inc. | 3 | $51 |
| Pfizer | 3 | $50 |
| Amgen | 2 | $45 |
| Vistapharm, Inc. | 2 | $41 |
| Astellas Pharma US Inc | 2 | $39 |
| Endo Pharmaceuticals Inc. | 2 | $39 |
| Amryt Pharma Holdings Ltd | 2 | $37 |
| Telix Pharmaceuticals | 2 | $36 |
| Insulet Corporation | 1 | $27 |
| Tandem Diabetes Care, Inc. | 1 | $26 |
| Halozyme Inc | 1 | $22 |
| Valeritas, Inc. | 1 | $22 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $20 |
| Recordati_rare_diseases_inc. | 1 | $18 |
| Shire North American Group Inc | 1 | $14 |
| IBSA Pharma Inc. | 1 | $13 |
How this compares
$5,090 in reported general payments places this provider in the 90th percentile of 4,983 internal medicine providers in Massachusetts.
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 |
|---|---|---|
| TrulicityDulaglutide | 367 | $421,984 |
| OzempicSemaglutide | 274 | $329,257 |
| JardianceEmpagliflozin | 308 | $287,046 |
| Tresiba Flextouch U-200Insulin Degludec | 103 | $105,374 |
| Fiasp FlextouchInsulin Aspart (Niacinamide) | 116 | $87,943 |
| Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog | 135 | $85,783 |
| FarxigaDapagliflozin Propanediol | 108 | $85,208 |
| MounjaroTirzepatide | 69 | $79,422 |
| RybelsusSemaglutide | 41 | $65,105 |
| Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog | 50 | $60,856 |
| JanuviaSitagliptin Phosphate | 68 | $60,074 |
| ForteoTeriparatide | 11 | $54,880 |
| Tresiba Flextouch U-100Insulin Degludec | 105 | $52,578 |
| Toujeo SolostarInsulin Glargine,hum.Rec.Anlog | 64 | $43,133 |
| Bydureon BciseExenatide Microspheres | 33 | $42,349 |
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 |
|---|---|---|
| Lilly USA, LLCTrulicity, Mounjaro, Forteo, Humalog | $883 | $561,718485 claims |
| Novo NordiskOzempic, Rybelsus, Novolog | $520 | $404,018341 claims |
| Boehringer IngelheimJardiance, Tradjenta | $305 | $302,508323 claims |
| MerckJanuvia, Janumet Xr, Janumet | $62 | $111,586142 claims |
| AstraZenecaFarxiga | $419 | $85,208108 claims |
| Sanofi-aventis U.S. LLCSoliqua 100-33, Lantus, Admelog | $283 | $39,753125 claims |
| AbbVieSynthroid | $128 | $3,18930 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 90th percentile of 4,983 internal medicine providers in Massachusetts.
Other internal medicine in Cambridge
- Ryan SullivanCambridge$8.5M
- William SellersCambridge$5M
- Alan GarberCambridge$4.9M
- Amy ColsonCambridge$604K
- Noopur RajeBoston$19.9M
- Michael McCartneyNewburyport$17.6M
- Rebecca HeistBoston$17.4M
- Richard PlattBoston$13.5M
- Ryan CorcoranBoston$11.4M
- Joyce LiuCharlestown$10.3M
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.