Kathleen McWhirter Isbell, M.D.
Psychiatry Physician · Yakima, WA
Kathleen McWhirter Isbell, M.D. is a psychiatry physician with a practice address in Yakima, Washington, and NPI 1538471743, issued on Jul 6, 2010. Check the license (Washington MD60577185, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Kathleen McWhirter Isbell
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD60577185 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2811 Tieton Dr, Yakima, WA 98902
- Phone
- (509) 575-8075
- Enumerated
- Jul 6, 2010
- Record last updated
- Dec 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (509) 577-5093
- Medicare enrollment
- Enrolled (PECOS I20151030000828); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 2811 Tieton Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen McWhirter Isbell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60577185Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average psychiatry physician in 2024
122 Medicare Part D claims for 16 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Yakima Valley Memorial PhysiciansYakima, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen McWhirter Isbell among 1,195 psychiatry physician records in Washington
Kathleen McWhirter Isbell, M.D. is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.
- NPI issued2010 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2010 · median 2007 among the 462 with a school on file
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Yakima → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Matthew BogoyasYakima, WA 989021336508423
- Mark Bradshaw, MDYakima, WA 989021508903436
- Frank Garner, M.D.Yakima, WA 989021841332483
- Howard Harrison, MDYakima, WA 989021124101241
- Nitin Karnik, MDYakima, WA 989021205836475
- Chung Lyou-Kim, M.D.Yakima, WA 989021619087509
- Gregory Sawyer, M.D.Yakima, WA 989021255415824
- Jamie Simmons, M.D.Yakima, WA 989021811071426
Common questions
What is Kathleen McWhirter Isbell, M.D.'s NPI number?
Kathleen McWhirter Isbell, M.D.'s National Provider Identifier (NPI) is 1538471743, issued on Jul 6, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen McWhirter Isbell, M.D. located?
The NPPES record lists a practice address at 2811 Tieton Dr, Yakima, WA, 98902. Phone: (509) 575-8075. Providers update this record themselves, so call before visiting.
How can I verify Kathleen McWhirter Isbell, M.D.'s license?
NPPES lists Washington license number MD60577185, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathleen McWhirter Isbell, M.D. prescribe under Medicare Part D?
In 2024, Kathleen McWhirter Isbell, M.D. had 122 Medicare Part D claims for 16 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.