Tina Koval, NURSE PRACTITIONER
NPI 1518495316ActiveIndividual· Nurse Practitioner, Adult Health· Willoughby, OH
Nurse Practitioner, Adult Health (NURSE PRACTITIONER) with Lake Hospital System, Inc., practicing in Willoughby, Ohio. 351 Medicare patients in 2024, $21,208 paid; nearly all of their 680 Part D prescriptions were generic (93%). Phathom Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $358.42 in all, mostly food and beverage. Lists Lake Health and 1 other hospital as hospital affiliations.
Overview
| NPI | 1518495316 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NURSE PRACTITIONER |
| Sole proprietor | Yes |
| NPI issued | May 24, 2017 |
| Last updated in NPPES | Mar 3, 2021 |
| Certified by provider | Mar 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | 020807 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 351 |
|---|---|
| Services billed | 382 across 13 procedure codes |
| Paid by Medicare | $21,208 |
Part D prescriptions in 2024
| Prescriptions (claims) | 680 · 1,248 30-day fills |
|---|---|
| Patients | 454 |
| Total drug cost | $31,199 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Lake Hospital System, Inc.Mentor, OH · 92 clinicians
Hospital affiliations
- Lake HealthConcord, OH
- Uh Cleveland Medical CenterCleveland, OH
Industry payments (Open Payments)
- 2025$358.42 · 3 payments from 2 companies
- 2024$15.26 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $233.59 | 2 |
| Abbvie Inc. | $124.83 | 1 |
What the 2025 payments were for
- Food and Beverage$358.42 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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