Justin Kaeen Chang, M.D.
NPI 1316301526ActiveIndividual· Orthopaedic Surgery· Lompoc, CA
Orthopaedic Surgery (M.D.) in Lompoc, California, trained at Tufts University School of Medicine (class of 2016). 334 Medicare patients in 2024, $155,180 paid; nearly all of their 167 Part D prescriptions were generic (99%). Arthrex, Inc. was the largest of 7 companies reporting payments in 2025, $4,920 in all, mostly food and beverage.
Overview
| NPI | 1316301526 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 13, 2016 |
| Last updated in NPPES | Oct 10, 2023 |
| Certified by provider | Oct 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | A190521 | 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 - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 334 |
|---|---|
| Services billed | 4,050 across 88 procedure codes |
| Paid by Medicare | $155,180 |
Part D prescriptions in 2024
| Prescriptions (claims) | 167 · 177 30-day fills |
|---|---|
| Patients | 58 |
| Total drug cost | $1,952 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Lompoc Valley Medical CenterLompoc, CA · 91 clinicians
Hospital affiliation
- Lompoc Valley Medical CenterLompoc, CA
Other facilities
- Assisted Home HealthHome health agency · Santa Barbara, CA
- Superior Home HealthHome health agency · Lompoc, CA
Industry payments (Open Payments)
- 2025$4,920 · 48 payments from 7 companies
- 2024$2,257 · 19 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Arthrex, Inc. | $2,990 | 32 |
| Vericel Corporation | $1,227 | 6 |
| Cornerstone Medical Associates, Inc. | $457.99 | 5 |
| Smith+nephew, Inc. | $186.32 | 2 |
| Vertex Pharmaceuticals Incorporated | $21.53 | 1 |
What the 2025 payments were for
- Food and Beverage$2,854 · 41 payments
- Travel and Lodging$2,065 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other orthopedic surgeons in Lompoc
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