Najmuddin Karimjee, MD
Internal Medicine · Houston, TXNPI 1285660241
Payments from drug & device makers
Across 1,051 payments — averaging $2500.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eli Lilly$1.8M
- Alnylam Pharmaceuticals Inc.$598K
- Regeneron$59K
- Biohaven Pharmaceutical Holding Company Ltd.$52K
- Teva Pharmaceuticals USA, Inc.$45K
- Pfizer$27K
- plus $48K from 54 others
Across 12 payments — averaging $10,824 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.
- Eli Lilly$111K
- Pfizer$19K
What the payments were for
- Food & beverage$8,23799%
- Education$921%
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.
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.
- PRODIGY$140
- TEZSPIRE$136
- AIRSUPRA$136
- MOUNJARO$125
- The Cologuard Plus Collection Kit$121
- FARXIGA$106
- BREZTRI AEROSPHERE$106
- SYMBICORT$106
- FASENRA$106
How this compares
$2,627,811 in reported general payments places this provider in the 95th percentile of 7,675 internal medicine providers in Texas.
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 |
|---|---|---|
| MounjaroTirzepatide | 1,199 | $1,629,484 |
| OzempicSemaglutide | 1,180 | $1,598,676 |
| FarxigaDapagliflozin Propanediol | 1,073 | $1,124,886 |
| EliquisApixaban | 642 | $711,916 |
| JardianceEmpagliflozin | 471 | $564,165 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 580 | $557,517 |
| JanuviaSitagliptin Phosphate | 282 | $347,533 |
| XareltoRivaroxaban | 322 | $332,136 |
| RybelsusSemaglutide | 172 | $330,211 |
| LinzessLinaclotide | 308 | $303,350 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 297 | $265,888 |
| TrulicityDulaglutide | 138 | $235,876 |
| EntrestoSacubitril/Valsartan | 154 | $219,806 |
| BiktarvyBictegrav/Emtricit/Tenofov Ala | 49 | $196,053 |
| Toujeo SolostarInsulin Glargine,hum.Rec.Anlog | 149 | $156,666 |
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, Rybelsus | $137 | $1,928,8861,352 claims |
| Lilly USA, LLCMounjaro, Trulicity | $363 | $1,865,3611,337 claims |
| AstraZenecaFarxiga, Breztri Aerosphere, Brilinta | $1,027 | $1,459,2251,441 claims |
| Boehringer IngelheimJardiance, Tradjenta, Synjardy Xr | $64 | $774,988662 claims |
| PfizerEliquis | $27,377 | $711,916642 claims |
| GSKTrelegy Ellipta, Breo Ellipta | $164 | $607,784668 claims |
| Johnson & JohnsonXarelto | $319 | $332,136322 claims |
| AbbVieLinzess | $2,125 | $303,350308 claims |
| NovartisEntresto | $192 | $219,806154 claims |
| Astellas Pharma US IncMyrbetriq | $874 | $147,985209 claims |
| Sumitomo Pharma America, Inc.Gemtesa | $20 | $68,79871 claims |
| BayerKerendia | $163 | $58,93947 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 7,675 internal medicine providers in Texas.
Other internal medicine in Houston
- Jan BurgerHouston$47.3M
- Nitin JainHouston$33.2M
- Aung NaingHouston$30.6M
- Preetesh JainHouston$19.5M
- Paolo StratiHouston$19.2M
- Nicholas ShortHouston$17.6M
- Isabella GlitzaHouston$14.8M
- Murtaza MussajiHouston$13.1M
- Hussein TawbiHouston$12.6M
- Hans LeeHouston$11.7M
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.