Michael Chung, MD
Physical Medicine & Rehabilitation · la Jolla, CANPI 1275094120
Payments from drug & device makers
What this record shows
This record is dominated by grants: $15,000 of the $24,406 with a category attached, or 61.5%. Medtronic accounts for 66.5% of it on its own, with 15 other manufacturers making up the rest. Reporting peaked in 2023 at $18,822 and has fallen 93.6% since, to $1,210 in 2025. Among physical medicine & rehabilitation clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 100 payments — averaging $244.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$16K
- Boston Scientific$4K
- SPR Therapeutics, Inc$1K
- Nevro Corp.$727
- Saluda Medical Americas, Inc.$610
- Merz Pharmaceuticals, LLC$444
- plus $1K from 10 others
What the payments were for
- Grants$15,00061%
- Travel & lodging$2,66011%
- Food & beverage$6,74728%
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 |
|---|---|---|
| Medtronic | 14 | $16,220 |
| Boston Scientific | 33 | $4,347 |
| SPR Therapeutics, Inc | 12 | $1,028 |
| Nevro Corp. | 12 | $727 |
| Saluda Medical Americas, Inc. | 7 | $610 |
| Merz Pharmaceuticals, LLC | 4 | $444 |
| Globus Medical | 2 | $180 |
| Curonix LLC | 2 | $177 |
| Innovation Technologies Inc | 1 | $151 |
| Biotronik NRO, Inc. | 3 | $135 |
| Ipsen Biopharmaceuticals, Inc | 1 | $104 |
| Mirati Therapeutics, Inc. | 5 | $95 |
| Abbott | 1 | $85 |
| AbbVie | 1 | $64 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $24 |
| GSK | 1 | $17 |
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.
- SYNCHROMEDII$15,235
- SPRINT PNS System$863
- Senza$658
- XEOMIN$345
- VANTA ADAPTIVESTIM$337
- Evoke$241
- GENERAL - THERAPIES$156
- Irrisept$151
- INTELLIS ADAPTIVESTIM$147
- WaveWriter Alpha Prime 16$144
- Evoke SCS$137
- PNS FREEDOM-4A PERMANENT NEUROSTIMULATOR RECEIVER KIT CHANNEL A$114
- INCEPTIV$105
- GENERAL PAIN MANAGEMENT$104
- DYSPORT$104
How this compares
$24,406 in reported general payments places this provider in the 95th percentile of 830 physical medicine & rehabilitation providers in California.
See all physical medicine & rehabilitation providers in California →
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 |
|---|---|---|
| Celecoxib | 15 | $1,049 |
| Gabapentin | 40 | $528 |
| Meloxicam | 61 | $280 |
| Naproxen | 11 | $67 |
Paid to pharmacies, not to this prescriber.
Other physical medicine & rehabilitation in la Jolla
- Ryan Fraiserla Jolla$8K
- Ziyad AyyoubParamount$322K
- Pratik GandhiAnaheim$122K
- Mary OatesSanta Maria$115K
- Kevin BarretteSan Francisco$84K
- Steven SampsonLos Angeles$63K
- Jeffrey ChenSan Diego$59K
- Nanette JoyceSacramento$56K
- Amir RahnavardMonterey$49K
- Kyle RyanSan Diego$39K
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.