Lou Anne P. Zibas, MD
NPI 1528094000ActiveIndividual· Internal Medicine, Pulmonary Disease· Knoxville, TN
Internal Medicine, Pulmonary Disease (MD) in Knoxville, Tennessee, trained at East Tennessee State University Quillen College of Medicine (class of 1992). In 2024 Medicare paid $180,405 for 511 patients, and Part D covered 436 of their prescriptions, 83% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2025, $360.29 in all, mostly food and beverage.
Overview
| NPI | 1528094000 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 25, 2006 |
| Last updated in NPPES | May 27, 2025 |
| Certified by provider | May 27, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 27782 | TN |
| Internal Medicine | 207R00000X | 27782 | 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 - Pulmonary Disease (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 511 |
|---|---|
| Services billed | 2,899 across 11 procedure codes |
| Paid by Medicare | $180,405 |
Part D prescriptions in 2024
| Prescriptions (claims) | 436 · 449 30-day fills |
|---|---|
| Patients | 173 |
| Total drug cost | $32,079 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | East Tennessee State University Quillen College of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Medical groups
- Physiotherapy Associates IncMemphis, TN · 1,460 clinicians
- Statcare Inpatient LLCKnoxville, TN · 109 clinicians
Hospital affiliations
- Fort Sanders Regional Medical CenterKnoxville, TN
- Parkwest Medical CenterKnoxville, TN
Other facilities
- Amedisys Home Health CareHome health agency · Knoxville, TN
- Patricia Neal Rehabilitation HospitalInpatient rehabilitation facility · Knoxville, TN
Industry payments (Open Payments)
- 2025$360.29 · 4 payments from 2 companies
- 2024$258.46 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $340.44 | 3 |
| Regeneron Healthcare Solutions, Inc. | $19.85 | 1 |
What the 2025 payments were for
- Food and Beverage$360.29 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 76 pulmonologists in Knoxville · All pulmonologists in Tennessee