John Schwab, MD
Infectious Disease · Chesapeake, VANPI 1851319990
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.3% of the total across 53 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 13 manufacturers reported payments, led by Merck at 28.3% of the total. Reporting peaked in 2019 at $923 and has fallen 97.2% since, to $26 in 2025.
Across 53 payments — averaging $20.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$305
- Gilead$154
- Philips North America LLC$128
- Insmed, Inc.$128
- Viiv Healthcare Company$126
- AbbVie$62
- plus $175 from 7 others
What the payments were for
- Speaking & faculty fees$212%
- Food & beverage$1,02595%
- Education$303%
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 |
|---|---|---|
| Merck | 13 | $305 |
| Gilead | 8 | $154 |
| Philips North America LLC | 6 | $128 |
| Insmed, Inc. | 6 | $128 |
| Viiv Healthcare Company | 6 | $126 |
| AbbVie | 4 | $62 |
| Astellas Pharma US Inc | 2 | $51 |
| Napo Pharmaceuticals Inc | 2 | $35 |
| Tetraphase Pharmaceuticals, Inc. | 2 | $28 |
| Vyera Pharmaceuticals, LLC | 1 | $18 |
| Paratek Pharmaceuticals, Inc. | 1 | $16 |
| Advanced Respiratory, Inc | 1 | $14 |
| Cumberland Pharmaceuticals, Inc. | 1 | $12 |
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.
- ZERBAXA$124
How this compares
$1,076 in reported general payments places this provider in the 75th percentile of 194 infectious disease providers in Virginia.
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 infectious disease in Chesapeake
- Aarti DesaiChesapeake$2K
- Christopher BettacchiMarion$243K
- Stephen WeinrothFairfax$157K
- William PetriCharlottesville$92K
- Michael IsonFalls Church$88K
- Valerie RiddleBumpass$83K
- Edward OldfieldNorfolk$81K
- William FurlongArlington$68K
- Frederick HaydenCharlottesville$61K
- David WheelerAnnandale$49K
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.