John H. Kaschko, M.D.
Internal Medicine Physician · Seattle, WA
John H. Kaschko, M.D. is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1528119310, issued on Jan 16, 2007. Check the license (Washington MD00020718, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- John H. Kaschko
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00020718 WA
Self-reported in NPPES; status is on the state search - Practice location
- 201 16TH Ave E, Seattle, WA 98112
- Phone
- (206) 326-3000
- Enumerated
- Jan 16, 2007
- Record last updated
- Apr 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 8112427 WA
- Medicare enrollment
- Enrolled (PECOS I20051128000201); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 201 16TH Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farangis Abab, RNHome Health Registered Nurse1639473408
- Joonis Abdulkhader, M.D.Family Medicine Physician1518154335
- Bashir Abumenjel, REGISTERED NURSEHome Health Registered Nurse1275352510
- Stephanie Abutin, ,MS, CCC-SLPSpeech-Language Pathologist1902522444
- Christopher Adrig, PA-CPhysician Assistant1184606089
- Sanjay Agarwal, MD, FCCP, FAASMSleep Medicine (Internal Medicine) Physician1477523249
Verify John H. Kaschko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00020718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF WashingtonBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John H. Kaschko among 3,079 internal medicine physician records in Washington
John H. Kaschko, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1980 · median 2006 among the 1,852 with a school on file
- Record last updated2021 · 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 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Arterburn, MDSeattle, WA 981121356393441
- Rachel BedaSeattle, WA 981121073699872
- Katherine Brown, MDSeattle, WA 981121851346506
- Paul Bunge, M. D.Seattle, WA 981121033228762
- Sari Davison, MDSeattle, WA 981121245327659
- Charles Janeway, M.D.Seattle, WA 981121043375199
- Mona Kathuria, D.O.Seattle, WA 981121801858279
- Harpreet Kaur, MDSeattle, WA 981121124097811
Common questions
What is John H. Kaschko, M.D.'s NPI number?
John H. Kaschko, M.D.'s National Provider Identifier (NPI) is 1528119310, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John H. Kaschko, M.D. located?
The NPPES record lists a practice address at 201 16TH Ave E, Seattle, WA, 98112. Phone: (206) 326-3000. Providers update this record themselves, so call before visiting.
How can I verify John H. Kaschko, M.D.'s license?
NPPES lists Washington license number MD00020718, 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.
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.