Tony Li-Wei Chang, MD
NPI 1871784678ActiveIndividual· Family Medicine, Sports Medicine· Redding, CA
Family Medicine, Sports Medicine (MD) with Dignity Health and 1 other group, practicing in Redding, California. 1,064 Medicare patients in 2024, $546,492 paid; nearly all of their 118 Part D prescriptions were generic (98%). Vertex Pharmaceuticals Incorporated reported $29.97 in payments in 2025, mostly food and beverage. Lists Mercy Medical Center of Mt Shasta and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1871784678 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 6, 2007 |
| Last updated in NPPES | Oct 9, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine, Sports Medicine Primary | 207QS0010X | A100732 | CA |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,064 |
|---|---|
| Services billed | 28,495 across 113 procedure codes |
| Paid by Medicare | $546,492 |
Part D prescriptions in 2024
| Prescriptions (claims) | 118 · 131 30-day fills |
|---|---|
| Patients | 56 |
| Total drug cost | $1,495 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Dignity HealthRedding, CA · 86 clinicians
- Shasta Orthopedics and Sports Medicine A Medical CorporationRedding, CA · 35 clinicians
Hospital affiliations
- Mercy Medical Center of Mt ShastaMount Shasta, CA
- Mercy Medical Center ReddingRedding, CA
- Shasta Regional Medical CenterRedding, CA
- St Elizabeth Community HospitalRed Bluff, CA
- Trinity HospitalWeaverville, CA
Other facilities
- Assured Home HealthHome health agency · Redding, CA
- Medical Home Care ProfessionalsHome health agency · Redding, CA
Industry payments (Open Payments)
- 2025$29.97 · 1 payment from 1 company
- 2024$105.23 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $29.97 | 1 |
What the 2025 payments were for
- Food and Beverage$29.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records