Diane Kay Koester, RN, NP
NPI 1962663658ActiveIndividual· Nurse Practitioner, Adult Health· La Jolla, CA
Nurse Practitioner, Adult Health (RN, NP) in La Jolla, California, licensed in CA, with an NPI issued in June 2008. Part D covered 414 prescriptions written in 2024, 84% of them generic. Edwards Lifesciences Corporation was the largest of 2 companies reporting payments in 2025, $79.29 in all, mostly food and beverage.
Overview
| NPI | 1962663658 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, NP |
| Sole proprietor | No |
| NPI issued | Jun 24, 2008 |
| Last updated in NPPES | Jul 20, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | NP 11678 | CA |
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 Order and Referring Only - Nurse Practitioner (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 414 · 1,136 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $74,262 |
| Generic share | 84% of claims |
Industry payments (Open Payments)
- 2025$79.29 · 2 payments from 2 companies
- 2024$31.26 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $55.18 | 1 |
| Abbott Laboratories | $24.11 | 1 |
What the 2025 payments were for
- Food and Beverage$79.29 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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