Donald Northfelt, MD
Hematology & Oncology · Phoenix, AZNPI 1316922008
Payments from drug & device makers
Across 114 payments — averaging $15,034 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$723K
- Merck$574K
- Genentech, Inc.$117K
- Roche Products Limited$79K
- Regeneron$69K
- GSK$50K
- plus $102K from 15 others
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 |
|---|---|---|
| Novartis | 10 | $723,052 |
| Merck | 12 | $574,092 |
| Genentech, Inc. | 22 | $117,171 |
| Roche Products Limited | 14 | $79,263 |
| Regeneron | 15 | $68,767 |
| GSK | 6 | $49,633 |
| Eli Lilly | 6 | $38,303 |
| Ipsen Bioscience Inc. | 3 | $30,891 |
| Pfizer | 5 | $13,596 |
| AbbVie | 6 | $10,747 |
| Taiho Oncology, Inc. | 3 | $7,800 |
| Stemline Therapeutics Inc. | 2 | $155 |
| Apellis Pharmaceuticals, Inc. | 1 | $140 |
| Lilly USA, LLC | 1 | $74 |
| Genentech USA, Inc. | 2 | $37 |
| Beone Medicines USA, Inc. | 1 | $32 |
| AVEO Pharmaceuticals, Inc. | 1 | $31 |
| Springworks Therapeutics, Inc. | 1 | $19 |
| AstraZeneca | 1 | $15 |
| Gilead | 1 | $12 |
| Helsinn Therapeutics (U.S.), Inc. | 1 | $12 |
How this compares
$1,713,842 in reported general payments places this provider in the 85th percentile of 261 hematology & oncology providers in Arizona.
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.
Other hematology & oncology in Phoenix
- Javier MunozPhoenix$8.4M
- Mahesh SeetharamPhoenix$1.8M
- Panayiotis SavvidesPhoenix$1M
- Tanios Bekaii-SaabScottsdale$31.4M
- Yousef ZakhariaScottsdale$13M
- Jiaxin NiuGilbert$10.7M
- Sudhir MandaTucson$10M
- Parminder SinghScottsdale$9.7M
- Michael GordonScottsdale$9.2M
- Mikhail ShtivelbandChandler$9.1M
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.