Benjamin Yim, MD
Neurological Surgery · Walnut Creek, CANPI 1598176604
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (42.8%), travel and lodging and speaking fees — rather than concentrated in one kind of arrangement. 24 manufacturers reported payments, led by Rapid Medical Ltd at 27.2% of the total. 2025 is the largest year on record at $94,537, more than ten times the $1,776 reported in 2019.
Across 236 payments — averaging $533.19 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Rapid Medical Ltd$34K
- Qapel Medical Inc$23K
- Penumbra, Inc.$18K
- Stryker$15K
- Microvention, Inc.$15K
- Medical Device Business Services, Inc.$10K
- plus $10K from 18 others
Across 101 payments — averaging $5739.50 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.
- Medical Device Business Services, Inc.$515K
- Stryker$38K
- Imperative Care, Inc$27K
What the payments were for
- Consulting fees$53,82243%
- Speaking & faculty fees$20,50016%
- Travel & lodging$41,44833%
- Food & beverage$10,0628%
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 |
|---|---|---|
| Rapid Medical Ltd | 24 | $34,225 |
| Qapel Medical Inc | 5 | $23,301 |
| Penumbra, Inc. | 23 | $17,973 |
| Stryker | 26 | $15,163 |
| Microvention, Inc. | 66 | $15,134 |
| Medical Device Business Services, Inc. | 10 | $9,759 |
| Imperative Care, Inc | 36 | $4,569 |
| Kaneka Medical America LLC | 2 | $2,696 |
| Medtronic(2 entities) | 19 | $1,345 |
| Johnson & Johnson | 7 | $611 |
| Globus Medical | 1 | $157 |
| Balt USA, LLC | 1 | $149 |
| Viz.ai, Inc. | 1 | $132 |
| Radius Health, Inc. | 1 | $120 |
| Genentech USA, Inc. | 1 | $114 |
| Augmedics Inc. | 1 | $86 |
| Abbott | 3 | $81 |
| Aesculap, Inc. | 2 | $51 |
| Microtransponder, Inc. | 1 | $42 |
| Zimmer Biomet | 2 | $33 |
| Vertos Medical, Inc. | 1 | $28 |
| Siemens Medical Solutions USA, Inc. | 1 | $24 |
| Zimvie Inc. | 1 | $20 |
| Monteris Medical Corporation | 1 | $19 |
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.
- TIGERTRIEVER 17 REVASCULARIZATION DEVICE$33,679
- COMANECI 17$33,679
- SURPASS EVOLVE$11,923
- WEB Aneurysm Embolization System$9,502
- SPOTLIGHT$8,400
- Indigo System$7,200
- Penumbra System$6,600
- STENT$3,189
- Apheresis Machine$2,696
- ZOOM 88-T LARGE DISTAL PLATFORM$2,030
- Smart Coil$1,995
- SOFIA 6F-131CM STR$1,978
- TGS$1,600
- Benchmark$1,528
- Azur CX Detachable$1,280
- Chaperon Guiding Catheter$1,280
- HEADWAY ADVANCED SOFT$1,000
- ERIC RETRIEVAL DEVICE$781
- WEB$682
- LVIS$682
How this compares
$125,832 in reported general payments places this provider in the 85th percentile of 773 neurological surgery 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 |
|---|---|---|
| BrilintaTicagrelor | 47 | $20,659 |
| ClopidogrelClopidogrel Bisulfate | 14 | $133 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Walnut Creek
- Christopher AmesSan Francisco$7.1M
- Larry KhooLos Angeles$2.8M
- Samy AbdouSan Diego$2.4M
- Bret AbshireMurrieta$2.3M
- William TaylorSan Diego$2.1M
- Tooraj GravoriEncino$2M
- Ali MesiwalaRancho Cucamonga$1.5M
- Joseph OsorioSan Diego$1.3M
- Ian JohnsonFresno$1.3M
- Aaron Cohen-GadolLos Angeles$1.3M
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.