Ellis Denn Whalen, FNP-BC
Family Nurse Practitioner · Eugene, OR
Ellis Denn Whalen, FNP-BC is a family nurse practitioner with a practice address in Eugene, Oregon, and NPI 1861000309, issued on Jul 21, 2020. Check the license (Oregon 10000925, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellis Denn Whalen
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 10000925 OR
202010323RN OR
APN.1000806-NP CO
RN.1644253 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1680 Chambers St Ste 103, Eugene, OR 97402
- Phone
- (541) 682-3550
- Enumerated
- Jul 21, 2020
- Record last updated
- Oct 16, 2025
- Medicare enrollment
- Enrolled (PECOS I20251028002946); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1680 Chambers St Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amrit Calhoun, RNCommunity Health Registered Nurse1841711975
- Cia Grimes, LPNLicensed Practical Nurse1164895504
- Michael Harker, RNCommunity Health Registered Nurse1700643178
- Kayla Snyder, RNRegistered Nurse1285188276
Verify Ellis Denn Whalen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 10000925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average family nurse practitioner in 2024
1,804 Medicare Part D claims for 140 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Lisinopril118 claims
- Atorvastatin Calcium116 claims
- Levothyroxine Sodium86 claims
- Omeprazole79 claims
- Amlodipine Besylate57 claims
- Losartan Potassium57 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.
Bills Medicare through one group practice
- Oak Street Health Physicians Group OF Colorado PLLCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
112 family nurse practitioner records list a practice address in Eugene
They are 112 of the 8,239 NPPES records with a practice address in Eugene, and 2,384 family nurse practitioner records in Oregon.
All 112 in Eugene → All 2,384 in Oregon → Every provider in Eugene →
Other family nurse practitioner records in Oregon
- April Abaecherli-Shore, FNP-CGresham, OR1881060267
- Leslie Abbott, FNPRoseburg, OR1700217064
- Samantha Abbott, FNPMilwaukie, OR1043855257
- Tristin Accuardi, DNP-FNPAstoria, OR1366970758
- Bonita Acosta, FNPCanyonville, OR1295882512
- Melissa Adair, ARNPPortland, OR1023590197
- Erika Adams, FNP-CJohn Day, OR1174163356
- Phyllis AdjeiCorvallis, OR1699220491
- Lindsey Adkisson, DNP, FNP-BCEugene, OR1386266450
- Alyssa Anthea Adriano, DNP, FNP-C, BSN-RNPortland, OR1346727179
Common questions
What is Ellis Denn Whalen, FNP-BC's NPI number?
Ellis Denn Whalen, FNP-BC's National Provider Identifier (NPI) is 1861000309, issued on Jul 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ellis Denn Whalen, FNP-BC located?
The NPPES record lists a practice address at 1680 Chambers St Ste 103, Eugene, OR, 97402. Phone: (541) 682-3550. Providers update this record themselves, so call before visiting.
How can I verify Ellis Denn Whalen, FNP-BC's license?
NPPES lists Oregon license number 10000925, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Ellis Denn Whalen, FNP-BC prescribe under Medicare Part D?
In 2024, Ellis Denn Whalen, FNP-BC had 1,804 Medicare Part D claims for 140 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.