Mary Susan Isaac, ANP
NPI 1538143961ActiveIndividual· Nurse Practitioner, Family· Knoxville, TN
Nurse Practitioner, Family (ANP) with Uhs Primary Care LLC, practicing in Knoxville, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $126,271 for 844 claims, against $11,850 paid for services in 2024. Novo Nordisk Inc was the largest of 15 companies reporting payments in 2025, $878.51 in all, mostly food and beverage. Lists University Health System, Inc as a hospital affiliation.
Overview
| NPI | 1538143961 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ANP |
| Sole proprietor | No |
| NPI issued | Nov 30, 2005 |
| Last updated in NPPES | Aug 14, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 11625 | TN |
| Registered Nurse | 163W00000X | 145963 | 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 - Nurse Practitioner (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 128 |
|---|---|
| Services billed | 280 across 40 procedure codes |
| Paid by Medicare | $11,850 |
Part D prescriptions in 2024
| Prescriptions (claims) | 844 · 1,553 30-day fills |
|---|---|
| Patients | 227 |
| Total drug cost | $126,271 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Uhs Primary Care LLCLenoir City, TN · 93 clinicians
Hospital affiliation
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$878.51 · 45 payments from 15 companies
- 2024$625.36 · 32 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $170.93 | 7 |
| Pfizer Inc. | $152.09 | 9 |
| Abbvie Inc. | $87.41 | 5 |
| Glaxosmithkline, LLC. | $87.37 | 3 |
| Astrazeneca Pharmaceuticals LP | $85.90 | 5 |
What the 2025 payments were for
- Food and Beverage$878.51 · 45 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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