Erin D. Ellis, MD
Medical Oncology Physician · Seattle, WA
Erin D. Ellis, MD is a medical oncology physician with a practice address in Seattle, Washington, and NPI 1447334164, issued on Oct 25, 2006. Check the license (Washington MD00028959, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Erin D. Ellis
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- MD00028959 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1221 Madison St, Seattle, WA 98104
- Phone
- (206) 386-2323
- Enumerated
- Oct 25, 2006
- Record last updated
- May 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (206) 386-2729
- Medicaid ID
- 1447334164 WA
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 183 in Washington → Look up another NPI →
Also registered at 1221 Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dale Bloomquist, DDSOral and Maxillofacial Surgery (Dentist)1740348705
- Martha Clay, ARNPAdult Health Nurse Practitioner1073697793
Verify Erin D. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00028959Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average medical oncology physician in 2024
298 Medicare Part D claims for 93 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 14 claims were for opioids.
Most prescribed
- Anastrozole34 claims
- Letrozole21 claims
- Tamoxifen Citrate20 claims
- Eliquis19 claims
- Gabapentin18 claims
- Imbruvica13 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.
Erin D. Ellis among 183 medical oncology physician records in Washington
Erin D. Ellis, MD 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. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 40% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2021 · 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.
All 183 in Washington → Every provider in Seattle → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Thomas Brown, M.D.Seattle, WA 981041992880991
- Siddhartha Devarakonda, MDSeattle, WA 981041487932398
- Albert Einstein, MDSeattle, WA 981041558444588
- Rafic Farah, MDSeattle, WA 981041780760587
- Mehmet Fer, MDSeattle, WA 981041164506887
- Mark FrohlichSeattle, WA 981041366528168
- Philip Gold, MDSeattle, WA 981041265516983
- William Gwin, MDSeattle, WA 981041598875882
Common questions
What is Erin D. Ellis, MD's NPI number?
Erin D. Ellis, MD's National Provider Identifier (NPI) is 1447334164, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erin D. Ellis, MD located?
The NPPES record lists a practice address at 1221 Madison St, Seattle, WA, 98104. Phone: (206) 386-2323. Providers update this record themselves, so call before visiting.
How can I verify Erin D. Ellis, MD's license?
NPPES lists Washington license number MD00028959, 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 Erin D. Ellis, MD prescribe under Medicare Part D?
In 2024, Erin D. Ellis, MD had 298 Medicare Part D claims for 93 beneficiaries; the average among medical oncology physician prescribers was 703. 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.