Herbert Mao, DO
Orthopaedic Surgery · Longview, WANPI 1063075067
Payments from drug & device makers
Across 48 payments — averaging $88.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Arthrex$2K
- Zimmer Biomet$2K
- Stryker$265
- Left Coast Surgical Inc$66
- Shoulder Innovations, Inc.$28
- Heron Therapeutics, Inc.$24
- plus $16 from 1 others
What the payments were for
- Travel & lodging$2,73964%
- Food & beverage$1,51736%
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 |
|---|---|---|
| Arthrex | 16 | $2,162 |
| Zimmer Biomet | 22 | $1,695 |
| Stryker | 5 | $265 |
| Left Coast Surgical Inc | 2 | $66 |
| Shoulder Innovations, Inc. | 1 | $28 |
| Heron Therapeutics, Inc. | 1 | $24 |
| Bioventus LLC | 1 | $16 |
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.
- Persona$722
- Avenir$329
- Comprehensive Shoulder System$198
- MAKO$175
- HAMMR CURVED G7 IMPACTOR$130
How this compares
$4,256 in reported general payments places this provider in the 55th percentile of 495 orthopaedic surgery providers in Washington.
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 |
|---|---|---|
| Oxycodone Hcl | 21 | $192 |
| Meloxicam | 12 | $41 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Longview
- Peter KungLongview$144K
- William BarrettRenton$8.2M
- James PritchettSeattle$6.4M
- Jeffrey RohSeattle$4.7M
- James CrutcherSeattle$3.5M
- Keith MayoSeattle$3.1M
- Matthew SaltzmanSeattle$1.8M
- Tim LovellSpokane$1.8M
- Timothy AltonRenton$1.8M
- Burt YaszaySeattle$1.5M
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.