Herbert Mao, DO
NPI 1063075067ActiveIndividual· Orthopaedic Surgery· Longview, WA
Orthopaedic Surgery (DO) in Longview, Washington, trained at Campbell Univ School of Osteopathic Medicine (class of 2019). 46 Medicare patients in 2024, $15,747 paid; nearly all of their 68 Part D prescriptions were generic (99%). Zimmer Biomet Holdings, Inc. was the largest of 7 companies reporting payments in 2025, $3,641 in all, mostly travel and lodging.
Overview
| NPI | 1063075067 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 16, 2019 |
| Last updated in NPPES | Aug 11, 2025 |
| Certified by provider | Aug 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | OP61494774 | WA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 46 |
|---|---|
| Services billed | 127 across 28 procedure codes |
| Paid by Medicare | $15,747 |
Part D prescriptions in 2024
| Prescriptions (claims) | 68 · 70 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $537.87 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Campbell Univ School of Osteopathic Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Longview Orthopedic Associates PLLCLongview, WA · 10 clinicians
Hospital affiliations
- Columbia Memorial HospitalAstoria, OR
- Peacehealth Southwest Medical CenteVancouver, WA
- Peacehealth St John Medical CenterLongview, WA
Industry payments (Open Payments)
- 2025$3,641 · 47 payments from 7 companies
- 2024$615.40 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $1,695 | 22 |
| Arthrex, Inc. | $1,546 | 15 |
| Stryker Corporation | $264.73 | 5 |
| Left Coast Surgical Inc | $66.46 | 2 |
| Shoulder Innovations, Inc. | $28.45 | 1 |
What the 2025 payments were for
- Travel and Lodging$2,124 · 17 payments
- Food and Beverage$1,517 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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