Kathryn Hassell, MD
Hematology · Aurora, CONPI 1629168307
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $5,867 of the $6,474 with a category attached, or 90.6%. Pfizer accounts for 95.8% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2023 at $3,502 and has fallen 97.3% since, to $95 in 2024.
Across 21 payments — averaging $308.26 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$6K
- Incyte Corporation$95
- Global Blood Therapeutics, Inc.$69
- Novartis$31
- Takeda Pharmaceuticals U.S.A., Inc.$29
- Bayer$20
- plus $29 from 2 others
Across 106 payments — averaging $2711.92 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.
- Takeda Pharmaceuticals U.S.A., Inc.$135K
- Bausch Health US, LLC$97K
- Pfizer$42K
- Novartis$12K
- Shire North American Group Inc$2K
What the payments were for
- Consulting fees$5,86791%
- Speaking & faculty fees$3305%
- Food & beverage$1793%
- Education$982%
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 |
|---|---|---|
| Pfizer | 12 | $6,200 |
| Incyte Corporation | 1 | $95 |
| Global Blood Therapeutics, Inc. | 1 | $69 |
| Novartis | 2 | $31 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $29 |
| Bayer | 1 | $20 |
| Pharmacyclics LLC, An Abbvie Company | 1 | $17 |
| Rigel Pharmaceuticals, Inc. | 1 | $12 |
How this compares
Too few hematology providers in Coloradoto place this figure against a meaningful peer group, so we don't.
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 in Aurora
- Tyler BucknerAurora$61K
- Brandon McMahonAurora$9K
- Thomas KartikaAurora$360
- Lisa ChuAurora$269
- Sally StablerAurora$140
- Olumide OdeyemiAurora$38
- Chelsea HayesAurora$32
- Yazan MigdadyDenver$13K
- Ann HeddermanDelta$6K
- Audrey SatoDenver$31
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.