Jonathan Ezra Grim, MD, PHD
Medical Oncology Physician · Seattle, WA
Jonathan Ezra Grim, MD, PHD is a medical oncology physician with a practice address in Seattle, Washington, and NPI 1659460574, issued on Oct 11, 2006. Check the license (Washington MD00040300, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jonathan Ezra Grim
- Credential
- MD, PHD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- MD00040300 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1660 S Columbian Way, Seattle, WA 98108
- Phone
- (206) 667-7994
- Enumerated
- Oct 11, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (206) 667-5255
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 183 in Washington → Look up another NPI →
Also registered at 1660 S Columbian Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abubakar Abdul-Rahman, NPPrimary Care Nurse Practitioner1689939001
- Sandra Abrahamson, ARNPAdult Health Nurse Practitioner1699735712
- McKenon Abreu, DPMStudent in an Organized Health Care Education/Training Program1104519461
- Jennifer Acselrod, RNRegistered Nurse1770753725
- Samantha Adams, OTR/LOccupational Therapist1750489704
- Rosemary Adamson, MB BSPulmonary Disease Physician1881853745
Verify Jonathan Ezra Grim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00040300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jonathan Ezra Grim among 183 medical oncology physician records in Washington
Jonathan Ezra Grim, MD, PHD is one of 183 medical oncology physician records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 40% newer
- In a Medicare fileNo · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2007 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Washington
There are 183 medical oncology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 183 in Washington → Every provider in Seattle → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Adam Greenbaum, MDSeattle, WA 981081083057343
- Jesse Salk, MD, PHDSeattle, WA 981081295000552
- William Schubach, MD, PHDSeattle, WA 981081740380161
- Shailender Bhatia, MDSeattle, WA 981091225041791
- Vijayakrishna Gadi, M.D. PHDSeattle, WA 981091053358671
- Bernardo Goulart, MD, MSSeattle, WA 981091184734501
- Edward Lin, MDSeattle, WA 981091760496996
- Gary Lyman, MDSeattle, WA 981091770503054
Common questions
What is Jonathan Ezra Grim, MD, PHD's NPI number?
Jonathan Ezra Grim, MD, PHD's National Provider Identifier (NPI) is 1659460574, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Ezra Grim, MD, PHD located?
The NPPES record lists a practice address at 1660 S Columbian Way, Seattle, WA, 98108. Phone: (206) 667-7994. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Ezra Grim, MD, PHD's license?
NPPES lists Washington license number MD00040300, 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. 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.