Timothy Tien-Wei Cheng, M.D.
NPI 1972940872ActiveIndividual· Orthopaedic Surgery· Fountain Valley, CA
Orthopaedic Surgery (M.D.) in Fountain Valley, California, trained at University of California, Geffen School of Medicine (class of 2013). Mostly services rather than prescriptions: Medicare paid $58,192 for 156 patients in 2024, with only 37 Part D claims. Stryker Corporation was the largest of 2 companies reporting payments in 2025, $284.64 in all, mostly food and beverage.
Overview
| NPI | 1972940872 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 31, 2013 |
| Last updated in NPPES | Jan 17, 2023 |
| Certified by provider | Jan 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | A132691 | CA |
| Orthopaedic Surgery | 207X00000X | 278393 | MA |
| Orthopaedic Surgery, Sports Medicine | 207XX0005X | A132691 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 156 |
|---|---|
| Services billed | 7,610 across 30 procedure codes |
| Paid by Medicare | $58,192 |
Part D prescriptions in 2024
| Prescriptions (claims) | 37 · 51 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $7,637 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- OrthowestIrvine, CA · 47 clinicians
Hospital affiliation
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
Other facilities
- Mission Home Health of Irvine, LLCHome health agency · Irvine, CA
Industry payments (Open Payments)
- 2025$284.64 · 7 payments from 2 companies
- 2024$16.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $225.79 | 6 |
| Baxter Healthcare | $58.85 | 1 |
What the 2025 payments were for
- Food and Beverage$284.64 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery providers in Fountain Valley
- 1093223034
- 1538596101
- 1073866786
- 1265601199
- 1023347846
- 1437165362
- 1720052459
- 1831382662
- 1467695056
- 1194744680
- 1205864477
- 1982995916