Ambujam Krishnan, MD
Hematology & Oncology · Livonia, MINPI 1548231749
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 117 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 20 manufacturers reported payments, led by Novo Nordisk at 31.3% of the total. Reporting peaked in 2021 at $847 and has fallen 96.3% since, to $32 in 2024. That places this record below the midpoint for hematology & oncology clinicians in MI, where the typical reported total is $1,604.
Across 117 payments — averaging $16.52 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novo Nordisk$605
- Johnson & Johnson$198
- Bristol Myers Squibb$197
- Amarin Pharma, Inc.$177
- Amgen$166
- Pfizer$151
- plus $439 from 14 others
What the payments were for
- Food & beverage$1,933100%
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 |
|---|---|---|
| Novo Nordisk | 41 | $605 |
| Johnson & Johnson(2 entities) | 11 | $198 |
| Bristol Myers Squibb | 12 | $197 |
| Amarin Pharma, Inc. | 10 | $177 |
| Amgen | 10 | $166 |
| Pfizer | 9 | $151 |
| Coherus Oncology, Inc. | 2 | $73 |
| AstraZeneca | 4 | $64 |
| GSK | 3 | $55 |
| Pharmacyclics LLC, An Abbvie Company | 3 | $53 |
| Astellas Pharma US Inc | 1 | $32 |
| Shionogi Inc | 2 | $26 |
| Dova Pharmaceuticals | 2 | $25 |
| Lexicon Pharmaceuticals, Inc. | 1 | $22 |
| AMAG Pharmaceuticals, Inc. | 1 | $17 |
| Taiho Oncology, Inc. | 1 | $16 |
| Puma Biotechnology, Inc. | 1 | $15 |
| Sunovion Pharmaceuticals Inc. | 1 | $15 |
| Sanofi Pasteur Inc. | 1 | $14 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $12 |
How this compares
$1,933 in reported general payments places this provider in the 50th percentile of 282 hematology & oncology providers in Michigan.
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 |
|---|---|---|
| Epinephrine | 11 | $3,083 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 63 | $2,836 |
| Diclofenac Sodium | 68 | $2,791 |
| Famotidine | 15 | $1,897 |
| Esomeprazole Magnesium | 23 | $1,066 |
| Ventolin HfaAlbuterol Sulfate | 19 | $1,058 |
| Ultra-Fine Nano Pen NeedlePen Needle, Diabetic | 11 | $615 |
| Celecoxib | 28 | $569 |
| Fluticasone Propionate | 34 | $400 |
| Sucralfate | 11 | $345 |
| Atorvastatin Calcium | 71 | $306 |
| Pantoprazole Sodium | 44 | $304 |
| Losartan Potassium | 61 | $290 |
| Metoprolol Succinate | 38 | $251 |
| Amlodipine Besylate | 93 | $250 |
Paid to pharmacies, not to this prescriber.
Other hematology & oncology in Livonia
- Faisal MusaDearborn$976K
- Mohammed Al HallakDetroit$644K
- Daniel LebovicGrosse Pointe Woods$352K
- Sreenivasa ChandanaGrand Rapids$305K
- Mohammad ChistiTroy$180K
- Gordon SrkalovicLansing$167K
- Jeffrey ZonderDetroit$88K
- Madan AroraFlint$84K
- Hadeel AssadDetroit$80K
- Andrew MuskovitzSouthfield$45K
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.