David Chang, DO
Pain Medicine · Lake Forest, ILNPI 1225378912
Payments from drug & device makers
Across 26 payments — averaging $58.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Globus Medical$508
- Pacira Pharmaceuticals Incorporated$507
- Abbott$256
- SPR Therapeutics, Inc$163
- Stryker$38
- Nalu Medical, Inc.$28
- plus $16 from 1 others
What the payments were for
- Travel & lodging$1,07371%
- Food & beverage$44329%
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 |
|---|---|---|
| Globus Medical | 10 | $508 |
| Pacira Pharmaceuticals Incorporated | 3 | $507 |
| Abbott | 4 | $256 |
| SPR Therapeutics, Inc | 5 | $163 |
| Stryker | 2 | $38 |
| Nalu Medical, Inc. | 1 | $28 |
| Boston Scientific | 1 | $16 |
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.
- Iovera$507
- Senza$175
- PROCLAIM$151
- SPRINT PNS System$121
How this compares
$1,515 in reported general payments places this provider in the 40th percentile of 233 pain 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 | 51 | $896 |
| Pregabalin | 35 | $693 |
| Tizanidine Hcl | 12 | $105 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Lake Forest
- Ricardo VallejoBloomington$3.1M
- David DickersonEvanston$766K
- Albert SinghQuincy$357K
- Steven CohenChicago$292K
- Thomas DahlbergRockford$218K
- Nirav ShahSkokie$137K
- Ryan KutaNaperville$114K
- Anthony LebarioElgin$87K
- Keith SchmidtHoffman Estates$81K
- Francesco VetriDecatur$80K
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.