Garrett Henry Lischer, M.D.
NPI 1831185107ActiveIndividual· Urology· Knoxville, TN
Urology (M.D.) in Knoxville, Tennessee, trained at University of Texas Southwestern Medical School at Dallas (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $1,330,782 for 1,845 claims, against $506,954 paid for services in 2024. C. R. Bard, Inc. & Subsidiaries was the largest of 31 companies reporting payments in 2025, $2,398 in all, mostly food and beverage.
Overview
| NPI | 1831185107 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 22, 2005 |
| Last updated in NPPES | Mar 24, 2025 |
| Certified by provider | Mar 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 38324 | 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 - Urology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 973 |
|---|---|
| Services billed | 9,280 across 92 procedure codes |
| Paid by Medicare | $506,954 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,845 · 3,810 30-day fills |
|---|---|
| Patients | 622 |
| Total drug cost | $1,330,782 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Urology |
Medical group
- Tennessee Urology Associates, PLLCJefferson City, TN · 27 clinicians
Hospital affiliations
- Blount Memorial HospitalMaryville, TN
- Cumberland Medical CenterCrossville, TN
- Methodist Medical Center of Oak RidgeOak Ridge, TN
- Parkwest Medical CenterKnoxville, TN
- Roane Medical CenterHarriman, TN
Industry payments (Open Payments)
- 2025$2,398 · 113 payments from 31 companies
- 2024$2,543 · 114 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| C. R. Bard, Inc. & Subsidiaries | $242.81 | 9 |
| Boston Scientific Corporation | $198.25 | 13 |
| Sumitomo Pharma America, Inc. | $190.51 | 10 |
| Urogen Pharma, Inc. | $180.92 | 6 |
| Bayer Healthcare Pharmaceuticals Inc. | $169.05 | 7 |
What the 2025 payments were for
- Food and Beverage$2,398 · 113 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 urologists in Knoxville · All urologists in Tennessee