Ellen Liuzza, MD
NPI 1437158920 · Internal Medicine Physician · Oak Ridge, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Liuzza, MD is a Internal Medicine Physician provider in Oak Ridge, TN (NPI 1437158920).
Provider details
- NPI number
- 1437158920
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 41358 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,581 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 395 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 289 | $118 |
| 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 | 280 | $15 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 218 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 213 | $13 |
| Hemoglobin A1c Level83036 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 116 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 460 | 117 |
| Atorvastatin Calcium | 407 | 114 |
| Pravastatin Sodium | 316 | 86 |
| Amlodipine Besylate | 273 | 86 |
| Lisinopril | 264 | 74 |
| Losartan Potassium | 255 | 69 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-18
- Last updated
- 2016-10-31
Frequently asked questions
- What is Ellen Liuzza's NPI number?
- Ellen Liuzza's National Provider Identifier (NPI) is 1437158920, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Liuzza's specialty?
- Ellen Liuzza is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Liuzza located?
- Ellen Liuzza's practice location on file with NPPES is 100 Vermont Ave, Oak Ridge, TN 37830-6471.
- What is Ellen Liuzza's phone number?
- The practice phone number listed in the NPPES registry for Ellen Liuzza is (865) 482-1777.
- Does Ellen Liuzza accept Medicare?
- Ellen Liuzza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Liuzza's NPI active?
- Yes — Ellen Liuzza's NPI (1437158920) is active in the NPPES registry as of the last update on 2016-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.