Hayley Brewster Ruebusch, APRN
NPI 1124674403ActiveIndividual· Nurse Practitioner· Chattanooga, TN
Nurse Practitioner (APRN) with Chattanooga Allergy Clinic , PLLC, practicing in Chattanooga, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $41,495 for 372 claims, against $14,044 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 15 companies reporting payments in 2025, $656.10 in all, mostly food and beverage.
Overview
| NPI | 1124674403 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Aug 13, 2019 |
| Last updated in NPPES | Dec 18, 2025 |
| Certified by provider | Dec 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 26300 | 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 (GA); Practitioner - Nurse Practitioner (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 102 |
|---|---|
| Services billed | 1,756 across 16 procedure codes |
| Paid by Medicare | $14,044 |
Part D prescriptions in 2024
| Prescriptions (claims) | 372 · 513 30-day fills |
|---|---|
| Patients | 137 |
| Total drug cost | $41,495 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Chattanooga Allergy Clinic , PLLCHixson, TN · 19 clinicians
Industry payments (Open Payments)
- 2025$656.10 · 36 payments from 15 companies
- 2024$432.00 · 28 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $183.02 | 17 |
| Csl Behring | $75.15 | 3 |
| Regeneron Healthcare Solutions, Inc. | $67.84 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $51.75 | 2 |
| Genzyme Corporation | $38.70 | 1 |
What the 2025 payments were for
- Food and Beverage$656.10 · 36 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 181 nurse practitioners in Chattanooga · All nurse practitioners in Tennessee