Matthew Tan, MD
Anesthesiology · Santa Ana, CANPI 1518527845
Payments from drug & device makers
What this record shows
This record is dominated by grants: $95,000 of the $112,694 with a category attached, or 84.3%. 18 manufacturers reported payments, led by Abbott at 45.4% of the total. Reporting peaked in 2023 at $98,357 and has fallen 91.3% since, to $8,591 in 2025. Among anesthesiology 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 198 payments — averaging $569.16 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$51K
- Medtronic$30K
- Boston Scientific$28K
- Biotronik NRO, Inc.$895
- Nevro Corp.$824
- SPR Therapeutics, Inc$775
- plus $1K from 12 others
What the payments were for
- Grants$95,00084%
- Travel & lodging$8,4938%
- Food & beverage$9,2028%
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 |
|---|---|---|
| Abbott | 15 | $51,114 |
| Medtronic | 107 | $29,599 |
| Boston Scientific | 18 | $28,152 |
| Biotronik NRO, Inc. | 13 | $895 |
| Nevro Corp. | 16 | $824 |
| SPR Therapeutics, Inc | 9 | $775 |
| MML US, Inc. | 3 | $518 |
| Spinal Simplicity, LLC | 2 | $167 |
| AbbVie | 2 | $138 |
| Stryker | 1 | $137 |
| Relievant Medsystems, Inc. | 1 | $107 |
| Tersera Therapeutics LLC | 4 | $94 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $51 |
| Saluda Medical Americas, Inc. | 1 | $44 |
| Vertos Medical, Inc. | 1 | $27 |
| Impel Pharmaceuticals LLC | 1 | $23 |
| Nalu Medical, Inc. | 1 | $17 |
| Scilex Pharmaceuticals Inc. | 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.
- WaveWriter Alpha Prime 16$25,000
- SYNCHROMEDII$20,702
- INTELLIS ADAPTIVESTIM$2,673
- KYPHON EXPRESS II KYPHOPAK TRAY$1,832
- GENERAL - THERAPIES$1,142
- VANTA ADAPTIVESTIM$1,034
- SPRINT PNS System$666
- VERCISE$533
- PROCLAIM$525
- Prospera$499
- ReActiv8$495
- Senza$475
- Intracept$429
- ETERNA$269
- GENERAL PAIN MANAGEMENT$167
- XIENCE SKYPOINT$147
- INCEPTIV$147
- HA MINUTEMAN G3-R$142
- mild Device Kit$137
- BIOTRONIK$125
How this compares
$112,694 in reported general payments places this provider in the 95th percentile of 5,717 anesthesiology 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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 18 | $560 |
Paid to pharmacies, not to this prescriber.
Other anesthesiology in Santa Ana
- Jack JengSouth San Francisco$1.3M
- Roger PhillipsChico$434K
- David DeyhimyLaguna Hills$344K
- Maxime CannessonLos Angeles$336K
- Alexander RoherSan Diego$282K
- Moody MakarLos Angeles$252K
- Jonathan JahrLos Angeles$223K
- Amir ShbeebLong Beach$216K
- Lawrence ChuStanford$205K
- Hendrikus LemmensStanford$200K
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.