Joffre Olaya
Neurological Surgery · Orange, CANPI 1326255852
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (46.4%), education and travel and lodging — rather than concentrated in one kind of arrangement. 18 manufacturers reported payments, led by Biomarin Pharmaceutical Inc. at 35.7% of the total. Reporting peaked in 2020 at $2,862 and has fallen 96.7% since, to $95 in 2025.
Across 72 payments — averaging $126.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biomarin Pharmaceutical Inc.$3K
- Medtronic$1K
- Monteris Medical Corporation$1K
- Mentor Worldwide LLC$987
- Neuropace, Inc.$715
- Integra Lifesciences Corporation$382
- plus $1K from 12 others
Across 22 payments — averaging $1833.76 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.
- Monteris Medical Corporation$35K
- Neuropace, Inc.$6K
What the payments were for
- Travel & lodging$1,63518%
- Food & beverage$4,22846%
- Education$3,25736%
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 |
|---|---|---|
| Biomarin Pharmaceutical Inc. | 2 | $3,257 |
| Medtronic(2 entities) | 18 | $1,438 |
| Monteris Medical Corporation | 12 | $1,325 |
| Mentor Worldwide LLC | 11 | $987 |
| Neuropace, Inc. | 6 | $715 |
| Integra Lifesciences Corporation | 6 | $382 |
| SK Life Science, Inc. | 2 | $249 |
| Artivion, Inc. | 2 | $204 |
| Tactile Systems Technology Inc | 1 | $154 |
| AbbVie | 1 | $79 |
| Biogen | 3 | $76 |
| Kls-martin L.p. | 2 | $70 |
| Zimmer Biomet | 1 | $53 |
| Ipsen Biopharmaceuticals, Inc | 1 | $34 |
| Livanova USA, Inc. | 1 | $30 |
| Aesculap, Inc. | 1 | $28 |
| Omniscient Neurotechnology America Ltd | 1 | $20 |
| Johnson & Johnson | 1 | $18 |
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.
- Brineura$3,257
- Neuroblate$1,027
- MENTOR MemoryGel Resterilizable Gel Sizer$796
- ACTIVA$644
- RNS Neurostimulator Kit$618
- ARTOURA Breast Tissue Expander$271
- Flexitouch Plus$154
- ENTRE$154
- SYNCHROMED$152
- SYNCHROMEDII$149
- CRYOVALVE SG PULMONARY HUMAN HEART VALVE$149
- ON-X AORTIC HEART VALVE WITH CONFORM-X SEWING RING AND EXTENDED HOLDER$149
- DuraSorb Monofilament Mesh$135
How this compares
$9,120 in reported general payments places this provider in the 60th 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.
Other neurological surgery in Orange
- 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.