Jan W. Duncan, MD
NPI 1821109083ActiveIndividual· Orthopaedic Surgery, Orthopaedic Surgery of the Spine· Los Angeles, CA
Orthopaedic Surgery, Orthopaedic Surgery of the Spine (MD) in Los Angeles, California, trained at University of Tennessee, Hsc, College of Medicine (class of 1966). 74 Medicare patients in 2024, $93,080 paid; nearly all of their 204 Part D prescriptions were generic (98%). L&k Spine Inc was the largest of 5 companies reporting payments in 2025, $46,744 in all, mostly consulting fees.
Overview
| NPI | 1821109083 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Mar 22, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Orthopaedic Surgery of the Spine Primary | 207XS0117X | C38275 | 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 | 74 |
|---|---|
| Services billed | 483 across 56 procedure codes |
| Paid by Medicare | $93,080 |
Part D prescriptions in 2024
| Prescriptions (claims) | 204 · 224 30-day fills |
|---|---|
| Patients | 58 |
| Total drug cost | $1,836 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 1966 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- J W Duncan MD A Medical CorporationLos Angeles, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$46,744 · 9 payments from 5 companies
- 2024$37,668 · 12 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| L&k Spine Inc | $46,200 | 4 |
| Providence Medical Technology, Inc. | $428.57 | 2 |
| Bioventus LLC | $44.80 | 1 |
| Baxter Healthcare | $43.48 | 1 |
| Biocomposites Inc | $27.00 | 1 |
What the 2025 payments were for
- Consulting Fee$46,200 · 4 payments
- Food and Beverage$543.85 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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