James Herdegen, MD
Internal Medicine · Chicago, ILNPI 1184737793
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $4,634 of the $6,530 with a category attached, or 71.0%. 9 manufacturers reported payments, led by Jazz Pharmaceuticals Inc. at 34.0% of the total. Reporting peaked in 2020 at $2,750 and has fallen 62.9% since, to $1,019 in 2025. Among internal medicine clinicians in IL with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 19 payments — averaging $343.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Jazz Pharmaceuticals Inc.$2K
- GE HealthCare$2K
- Verathon Inc.$1K
- Inspire Medical Systems, Inc.$822
- Advanced Respiratory, Inc$360
- Itamar Medical Inc$146
- plus $297 from 3 others
Across 1 payment — averaging $750.00 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.
- Resmed Corp$750
What the payments were for
- Consulting fees$4,63471%
- Speaking & faculty fees$3606%
- Travel & lodging$77012%
- Food & beverage$5809%
- Education$1863%
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 |
|---|---|---|
| Jazz Pharmaceuticals Inc. | 5 | $2,219 |
| GE HealthCare | 1 | $1,686 |
| Verathon Inc. | 1 | $1,000 |
| Inspire Medical Systems, Inc. | 3 | $822 |
| Advanced Respiratory, Inc | 1 | $360 |
| Itamar Medical Inc | 2 | $146 |
| Avadel CNS Pharmaceuticals, LLC | 1 | $115 |
| Sanofi | 1 | $96 |
| Resmed Corp | 4 | $86 |
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.
- Bronoscope$1,000
- Inspire Upper Airway Stimulation System$770
- Life 2000 Ventilation System$360
- WatchPATONE$130
- LUMRYZ$115
How this compares
$6,530 in reported general payments places this provider in the 90th percentile of 5,182 internal medicine providers in Illinois.
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 |
|---|---|---|
| Gabapentin | 31 | $228 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Chicago
- Merle DiamondChicago$1.1M
- Robert KushnerChicago$516K
- Romeo UrsuaChicago$420K
- Peter O DonnellChicago$318K
- George UrbanChicago$258K
- Kristen PallokChicago$256K
- George NissanChicago$252K
- Luke LaffinChicago$162K
- Daniel CatenacciChicago$161K
- Hiren ShahChicago$144K
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.