Ralph Philip Ermoian, MD
Radiation Oncology Physician · Seattle, WA
Ralph Philip Ermoian, MD is a radiation oncology physician with a practice address in Seattle, Washington, and NPI 1588795140, issued on Mar 7, 2007. Check the license (Washington MD60041447, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Ralph Philip Ermoian
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD60041447 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 598-4100
- Enumerated
- Mar 7, 2007
- Record last updated
- May 31, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (206) 598-3786
- Medicare enrollment
- Enrolled (PECOS I20110818000129); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 198 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nandini AbburiNeurology Physician1730618349
- Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656
Verify Ralph Philip Ermoian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60041447Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ralph Philip Ermoian among 198 radiation oncology physician records in Washington
Ralph Philip Ermoian, MD is one of 198 radiation oncology physician records with a practice address in Washington. 80% 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 48% of them.
- NPI issued2007 · 48% of these records are older, 43% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2003 · median 2006 among the 141 with a school on file
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Washington
There are 198 radiation oncology physician records in Washington.
All 198 in Washington → Every provider in Seattle → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Sudershan Bhatia, MDSeattle, WA 981951780656785
- Li-Ming Fang, MDSeattle, WA 981951659435436
- Mark GroudineSeattle, WA 981951912082710
- Lia Halasz, M.D.Seattle, WA 981951780735951
- Jennifer Keam, MDSeattle, WA 981951649370677
- Wui-Jin Koh, MDSeattle, WA 981951972688786
- George LaramoreSeattle, WA 981951457441313
- Simon Lo, M.D.Seattle, WA 981951932163680
Common questions
What is Ralph Philip Ermoian, MD's NPI number?
Ralph Philip Ermoian, MD's National Provider Identifier (NPI) is 1588795140, issued on Mar 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Philip Ermoian, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 598-4100. Providers update this record themselves, so call before visiting.
How can I verify Ralph Philip Ermoian, MD's license?
NPPES lists Washington license number MD60041447, 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.
What is Ralph Philip Ermoian, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.