Kathleen McWhirter Isbell, M.D.
NPI 1538471743ActiveIndividual· Psychiatry & Neurology, Psychiatry· Yakima, WA
Psychiatry & Neurology, Psychiatry (M.D.) in Yakima, Washington, trained at University of Missouri, Kansas City, School of Medicine (class of 2010). In 2024 Medicare paid $21,998 for 21 patients, and Part D covered 122 of their prescriptions, 89% of them generic. E.R. Squibb & Sons, L.L.C. reported $62.22 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1538471743 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 6, 2010 |
| Last updated in NPPES | Dec 8, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | MD60577185 | WA |
| Internal Medicine | 207R00000X | MD60577185 | WA |
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 - Psychiatry (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 21 |
|---|---|
| Services billed | 366 across 7 procedure codes |
| Paid by Medicare | $21,998 |
Part D prescriptions in 2024
| Prescriptions (claims) | 122 · 138 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $15,921 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Missouri, Kansas City, School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Psychiatry |
Medical group
- Yakima Valley Memorial PhysiciansYakima, WA · 391 clinicians
Hospital affiliation
- Yakima Valley MemorialYakima, WA
Industry payments (Open Payments)
- 2025$62.22 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $62.22 | 1 |
What the 2025 payments were for
- Food and Beverage$62.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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