John Sleasman, MD
Pediatric Allergy/Immunology · Durham, NCNPI 1366453201
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (51.2%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. 8 manufacturers reported payments, led by Sumitomo Pharma America, Inc. at 59.6% of the total. 2025 is the largest year on record at $11,671, more than ten times the $678 reported in 2019.
Across 29 payments — averaging $1010.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sumitomo Pharma America, Inc.$17K
- Grifols USA, LLC$6K
- CSL Behring$4K
- Amgen$2K
- Grifols Shared Services North America, Inc.$200
- Pharming Healthcare, Inc.$182
- plus $211 from 2 others
Across 38 payments — averaging $48,908 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.
- Sumitomo Pharma America, Inc.$1.8M
- Shire North American Group Inc$36K
- ADMA Biomanufacturing LLC$34K
- Kedrion S.p.a.$9K
- CSL Behring$5K
What the payments were for
- Consulting fees$15,01551%
- Speaking & faculty fees$12,43242%
- Travel & lodging$5622%
- Food & beverage$1,2924%
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 |
|---|---|---|
| Sumitomo Pharma America, Inc. | 12 | $17,454 |
| Grifols USA, LLC | 4 | $5,654 |
| CSL Behring | 7 | $3,840 |
| Amgen | 1 | $1,760 |
| Grifols Shared Services North America, Inc. | 1 | $200 |
| Pharming Healthcare, Inc. | 2 | $182 |
| Sobi, Inc | 1 | $123 |
| Shire North American Group Inc | 1 | $88 |
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.
How this compares
Too few pediatric allergy/immunology providers in North Carolinato 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 pediatric allergy/immunology in Durham
- Niraj PatelDurham$683K
- Geoffrey HallDurham$2K
- Rebecca BuckleyDurham$238
- Talal MousallemWinston Salem$52K
- Michelle HernandezSanford$25K
- Allison BurbankSanford$6K
- Puja RajaniCharlotte$4K
- Amy StallingsRaleigh$1K
- Timothy MoranChapel Hill$802
- Teresa BrattonGreensboro$83
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.