Helen Chan, MD
Pain Medicine · San Francisco, CANPI 1760821987
Payments from drug & device makers
Across 100 payments — averaging $60.08 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$2K
- Nevro Corp.$2K
- Vertos Medical, Inc.$899
- SPR Therapeutics, Inc$457
- Stratus Medical, LLC$192
- Collegium Pharmaceutical, Inc.$142
- plus $718 from 12 others
Across 1 payment — averaging $16.00 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.
- Saluda Medical Americas, Inc.$16
What the payments were for
- Travel & lodging$2,36839%
- Food & beverage$3,64061%
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 |
|---|---|---|
| Medtronic(2 entities) | 26 | $1,938 |
| Nevro Corp. | 12 | $1,661 |
| Vertos Medical, Inc. | 3 | $899 |
| SPR Therapeutics, Inc | 9 | $457 |
| Stratus Medical, LLC | 1 | $192 |
| Collegium Pharmaceutical, Inc. | 14 | $142 |
| Biotronik NRO, Inc. | 3 | $137 |
| Abbott | 6 | $134 |
| Novartis | 7 | $115 |
| Boston Scientific | 5 | $110 |
| Relievant Medsystems, Inc. | 4 | $51 |
| Scilex Pharmaceuticals Inc. | 3 | $48 |
| Pacira Therapeutics, Inc. | 2 | $37 |
| Nalu Medical, Inc. | 1 | $30 |
| Amgen | 1 | $20 |
| Zyla Life Sciences, Inc. | 1 | $13 |
| Mallinckrodt Enterprises LLC | 1 | $11 |
| Pfizer | 1 | $11 |
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.
- Senza Spinal Cord Stimulation System$1,391
- mild Device Kit$899
- INTELLIS$743
- INTELLIS ADAPTIVESTIM$436
- Nimbus$192
- SPRINT PNS System$154
- ADAPTIVESTIM$128
How this compares
$6,008 in reported general payments places this provider in the 70th percentile of 840 pain medicine 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.
Other pain medicine in San Francisco
- Eric GrigsbyNapa$3.2M
- Jason PopeSanta Rosa$2.8M
- Javid GhandehariSanta Monica$2.7M
- Alexander HerselThousand Oaks$2.1M
- Krishnan ChakravarthyTemecula$1.9M
- Kasra AmirdelfanWalnut Creek$1.7M
- Ramana NaiduLarkspur$1.6M
- Foead GeulaStudio City$1.3M
- Xiang QianRedwood City$941K
- Jacqueline WeisbeinNapa$863K
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.