Garrett Lischer, M.D.
NPI 1831185107 · Urology Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Garrett Lischer, M.D. is a Urology Physician provider in Knoxville, TN (NPI 1831185107).
Provider details
- NPI number
- 1831185107
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 38324 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
7,194 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Principal Care Management Services for a Single High-Risk Disease, First 30 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99426 | 1,083 | $58 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 1,080 | $59 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,040 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 853 | $120 |
| Automated Urinalysis Test81003 | 772 | $2 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 392 | 135 |
| Relugolixbrand: Orgovyx | 188 | 24 |
| Finasteride | 161 | 50 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 114 | 106 |
| Mirabegronbrand: Myrbetriq | 113 | 37 |
| Vibegronbrand: Gemtesa | 105 | 44 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,543 across 114 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-22
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Garrett Lischer's NPI number?
- Garrett Lischer's National Provider Identifier (NPI) is 1831185107, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Garrett Lischer's specialty?
- Garrett Lischer is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Garrett Lischer located?
- Garrett Lischer's practice location on file with NPPES is 9245 Park West Blvd, Knoxville, TN 37923-4425.
- What is Garrett Lischer's phone number?
- The practice phone number listed in the NPPES registry for Garrett Lischer is (865) 690-3811.
- Does Garrett Lischer accept Medicare?
- Garrett Lischer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Garrett Lischer's NPI active?
- Yes — Garrett Lischer's NPI (1831185107) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.