Long Huynh-Duc, D.O.
NPI 1447572169ActiveIndividual· Internal Medicine, Rheumatology· Greenville, SC
Internal Medicine, Rheumatology (D.O.) with Piedmont Arthritis Clinic PA, practicing in Greenville, South Carolina. In 2024 Medicare paid $3,310,164 for 1,010 patients, and Part D covered 4,724 of their prescriptions, 86% of them generic. Amgen Inc. was the largest of 25 companies reporting payments in 2025, $3,892 in all, mostly food and beverage. Lists Anmed Health and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1447572169 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Feb 22, 2010 |
| Last updated in NPPES | Jul 31, 2026 |
| Certified by provider | Jul 31, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 37758 | SC |
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 - Rheumatology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,010 |
|---|---|
| Services billed | 347,170 across 52 procedure codes |
| Paid by Medicare | $3,310,164 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,724 · 8,330 30-day fills |
|---|---|
| Patients | 728 |
| Total drug cost | $4,763,896 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Rheumatology |
Medical group
- Piedmont Arthritis Clinic PAGreenville, SC · 9 clinicians
Hospital affiliations
- Anmed HealthAnderson, SC
- Prisma Health Greenville Memorial HospitalGreenville, SC
- Prisma Health Hillcrest HospitalSimpsonville, SC
- Self Regional HealthcareGreenwood, SC
- St Francis-DowntownGreenville, SC
Industry payments (Open Payments)
- 2025$3,892 · 189 payments from 25 companies
- 2024$6,310 · 190 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $575.15 | 38 |
| Abbvie Inc. | $515.72 | 20 |
| Glaxosmithkline, LLC. | $320.38 | 10 |
| Ucb, Inc. | $320.24 | 18 |
| Mallinckrodt Hospital Products Inc. | $269.81 | 9 |
What the 2025 payments were for
- Food and Beverage$3,793 · 188 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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