Lingyun Du
NPI 1730541707ActiveIndividual· Dermatology· Camarillo, CA
Dermatology with Csi Medical Group, practicing in Camarillo, California. Their prescriptions cost Medicare Part D more than their services did: $512,772 for 1,001 claims, against $230,651 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,598 in all, mostly food and beverage.
Overview
| NPI | 1730541707 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 28, 2016 |
| Last updated in NPPES | Mar 11, 2024 |
| Certified by provider | Mar 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | A167622 | CA |
| Dermatology | 207N00000X | MD61016144 | WA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (CA); Practitioner - Dermatology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 447 |
|---|---|
| Services billed | 3,358 across 51 procedure codes |
| Paid by Medicare | $230,651 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,001 · 1,108 30-day fills |
|---|---|
| Patients | 329 |
| Total drug cost | $512,772 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Dermatology |
Medical group
- Csi Medical GroupFullerton, CA · 111 clinicians
Industry payments (Open Payments)
- 2025$2,598 · 128 payments from 18 companies
- 2024$1,720 · 69 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $786.19 | 33 |
| Genzyme Corporation | $361.53 | 12 |
| Regeneron Healthcare Solutions, Inc. | $291.42 | 9 |
| Lilly USA, LLC | $274.90 | 15 |
| Novartis Pharmaceuticals Corporation | $188.59 | 11 |
What the 2025 payments were for
- Food and Beverage$2,253 · 125 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$250.00 · 1 payment
- Education$95.12 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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