Joseph Liu, M.D.
NPI 1750382362ActiveIndividual· Internal Medicine, Cardiovascular Disease· Knoxville, TN
Internal Medicine, Cardiovascular Disease (M.D.) in Knoxville, Tennessee, trained at Northwestern University Feinberg Medical School (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $930,690 for 4,331 claims, against $137,320 paid for services in 2024. Boston Scientific Corporation was the largest of 15 companies reporting payments in 2025, $779.47 in all, mostly food and beverage.
Overview
| NPI | 1750382362 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 4, 2005 |
| Last updated in NPPES | Nov 14, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 34059 | TN |
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 - Cardiovascular Disease (Cardiology) (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,192 |
|---|---|
| Services billed | 3,097 across 67 procedure codes |
| Paid by Medicare | $137,320 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,331 · 11,243 30-day fills |
|---|---|
| Patients | 725 |
| Total drug cost | $930,690 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- University Health System, Inc.Knoxville, TN · 522 clinicians
Hospital affiliations
- Blount Memorial HospitalMaryville, TN
- Leconte Medical CenterSevierville, TN
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$779.47 · 42 payments from 15 companies
- 2024$1,132 · 63 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $145.00 | 11 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $135.17 | 7 |
| Amgen Inc. | $82.52 | 5 |
| Pfizer Inc. | $71.32 | 4 |
| Inspire Medical Systems, Inc. | $69.83 | 2 |
What the 2025 payments were for
- Food and Beverage$779.47 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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