NPPES file of Aug 9, 2026

Jonathan Wayne Isley, MD

Student in an Organized Health Care Education/Training Program · Seattle, WA

Jonathan Wayne Isley, MD is a student in an organized health care education/training program with a practice address in Seattle, Washington, and NPI 1942864053, issued on Apr 24, 2019. Check the license (Washington ML61077225, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942864053
Name
Jonathan Wayne Isley
Credential
MD
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
License number
ML61077225 WA
Self-reported in NPPES; status is on the state search
Practice location
1100 9TH Ave, Seattle, WA 98101
Phone
(206) 515-5811
Enumerated
Apr 24, 2019
Record last updated
Jul 14, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1100 9TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Barry Aaronson, MDHospitalist Physician1952418345
  2. David Aboulafia, MDHematology & Oncology Physician1043269392
  3. Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
  4. Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
  5. Ream AdeebAdult Health Nurse Practitioner1760868855
  6. Steven Adler, MDDiagnostic Ultrasound Physician1639108046

Verify Jonathan Wayne Isley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license ML61077225
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Washington license search

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63% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

69 Medicare Part D claims for 39 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. 22 claims were for opioids.

  1. Jonathan Isley69
  2. Specialty average185

Most prescribed

  1. Oxycodone Hcl17 claims
  2. Ondansetron Odt13 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.

Jonathan Wayne Isley among 5,164 student in an organized health care education/training program records in Washington

Jonathan Wayne Isley, MD is one of 5,164 student in an organized health care education/training program records with a practice address in Washington. 18% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 16% of them.

  • NPI issued2019 · 16% of these records are older, 80% newer
  • In a Medicare fileYes · 18% of these records are
  • In the CMS Doctors and Clinicians fileNo · 3% of these records are
  • Record last updated2020 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,415 student in an organized health care education/training program records list a practice address in Seattle

They are 2,415 of the 41,956 NPPES records with a practice address in Seattle, and 5,164 student in an organized health care education/training program records in Washington.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Jimmy Adra, MDSeattle, WA 981011013050004
  2. Oriyomi Alimi, MD, PHARMDSeattle, WA 981011700223153
  3. Michael Chu, M.D.Seattle, WA 981011124415849
  4. Liv Harmon, MDSeattle, WA 981011154680593
  5. Yuka Kitano, MDSeattle, WA 981011922142322
  6. Justin KooSeattle, WA 981011750791554
  7. Pezhman Mehrabian, M.D.Seattle, WA 981011427344118
  8. Timothy Nelson, M.D.Seattle, WA 981011871736348

Common questions

What is Jonathan Wayne Isley, MD's NPI number?

Jonathan Wayne Isley, MD's National Provider Identifier (NPI) is 1942864053, issued on Apr 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Wayne Isley, MD located?

The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 515-5811. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Wayne Isley, MD's license?

NPPES lists Washington license number ML61077225, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Jonathan Wayne Isley, MD prescribe under Medicare Part D?

In 2024, Jonathan Wayne Isley, MD had 69 Medicare Part D claims for 39 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.