Tina D. Walker, ARNP
NPI 1588308860ActiveIndividual· Nurse Practitioner, Family· Eustis, FL
Nurse Practitioner, Family (ARNP) with Lake Internal Medicine Associates, practicing in Eustis, Florida. Their prescriptions cost Medicare Part D more than their services did: $450,243 for 6,094 claims, against $89,734 paid for services in 2024. Acadia Pharmaceuticals Inc was the largest of 10 companies reporting payments in 2025, $383.64 in all, mostly food and beverage. Lists Adventhealth Waterman and 1 other hospital as hospital affiliations.
Overview
| NPI | 1588308860 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ARNP |
| Sole proprietor | No |
| NPI issued | Apr 23, 2022 |
| Last updated in NPPES | Jul 26, 2024 |
| Certified by provider | Jul 26, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 11013266 | FL |
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 (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 557 |
|---|---|
| Services billed | 2,147 across 37 procedure codes |
| Paid by Medicare | $89,734 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,094 · 15,082 30-day fills |
|---|---|
| Patients | 1,029 |
| Total drug cost | $450,243 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Lake Internal Medicine AssociatesEustis, FL · 3 clinicians
Hospital affiliations
- Adventhealth WatermanTavares, FL
- Orlando Health South Lake HospitalClermont, FL
Other facilities
- Adventhealth Home HealthHome health agency · Leesburg, FL
- Amedisys Home HealthHome health agency · The Villages, FL
- Waterman Village Home CareHome health agency · Mount Dora, FL
- Edgewater at Waterman VillageNursing home · Mount Dora, FL
Industry payments (Open Payments)
- 2025$383.64 · 17 payments from 10 companies
- 2024$92.45 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Acadia Pharmaceuticals Inc | $124.57 | 5 |
| Exact Sciences Corporation | $63.58 | 3 |
| Novo Nordisk Inc | $42.06 | 2 |
| Smith+nephew, Inc. | $30.40 | 1 |
| Ucb, Inc. | $23.91 | 1 |
What the 2025 payments were for
- Food and Beverage$383.64 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 family nurse practitioners in Eustis · All family nurse practitioners in Florida