Karen Chu, MD
Obstetrics & Gynecology · San Francisco, CANPI 1053436899
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 93.7% of the total across 166 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 29 manufacturers, the largest accounting for just 21.0% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $805 and has fallen 61.8% since, to $308 in 2025.
Across 166 payments — averaging $23.88 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$833
- AbbVie$622
- Johnson & Johnson$339
- Therapeuticsmd, Inc.$306
- Bayer$242
- Avion Pharmaceuticals$228
- plus $1K from 23 others
What the payments were for
- Food & beverage$3,71494%
- Education$2506%
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 |
|---|---|---|
| Amgen | 27 | $833 |
| AbbVie | 29 | $622 |
| Johnson & Johnson | 7 | $339 |
| Therapeuticsmd, Inc. | 16 | $306 |
| Bayer | 11 | $242 |
| Avion Pharmaceuticals | 20 | $228 |
| Astellas Pharma US Inc | 6 | $220 |
| Myovant Sciences Inc. | 7 | $177 |
| Applied Medical Resources Corporation | 2 | $145 |
| Mayne Pharma Commercial LLC | 8 | $126 |
| Coopersurgical, Inc. | 4 | $89 |
| Mylan Pharmaceuticals Inc. | 4 | $83 |
| Biogen | 3 | $75 |
| Shield Therapeutics Inc | 2 | $61 |
| Millicent US Inc | 3 | $55 |
| AMAG Pharmaceuticals, Inc. | 2 | $47 |
| Merck | 2 | $37 |
| Organon | 2 | $35 |
| Medicem Inc. | 1 | $29 |
| Vertex | 1 | $27 |
| Ascend Therapeutics US, LLC | 1 | $25 |
| Hologic Sales And Service, LLC | 1 | $23 |
| Exact Sciences | 1 | $23 |
| Sumitomo Pharma America, Inc. | 1 | $23 |
| Agile Therapeutics, Inc. | 1 | $22 |
| Exeltis, USA Inc. | 1 | $20 |
| Octapharma USA, Inc. | 1 | $20 |
| Minerva Surgical, Inc | 1 | $19 |
| Meditrina | 1 | $13 |
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.
How this compares
$3,964 in reported general payments places this provider in the 85th percentile of 3,784 obstetrics & gynecology 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 |
|---|---|---|
| EstringEstradiol | 13 | $6,794 |
| Estradiol | 31 | $2,905 |
| Alendronate Sodium | 12 | $86 |
| Triamcinolone Acetonide | 21 | $47 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in San Francisco
- Maida TaylorSan Francisco$279K
- Mona OradySan Francisco$224K
- Mitchell RosenSan Francisco$67K
- Leslie KardosSan Francisco$31K
- Steve YuNorthridge$964K
- Samir HageRedlands$640K
- Malcolm MunroLos Angeles$609K
- Michael KrychmanCosta Mesa$547K
- Anita NelsonTorrance$530K
- Jan SegnitzSan Jose$511K
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.