Stephen Andrew McIlmoil, D.O.
Emergency Medical Services (Emergency Medicine) Physician · La Grande, OR
Stephen Andrew McIlmoil, D.O. is an emergency medical services (emergency medicine) physician with a practice address in La Grande, Oregon, and NPI 1598052813, issued on Jul 7, 2011. Check the license (Oregon DO166905, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Stephen Andrew McIlmoil
- Credential
- D.O.
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License numbers
- DO166905 OR
5101019465 MI
Self-reported in NPPES; status is on the state search - Practice location
- 900 Sunset Dr, La Grande, OR 97850
- Phone
- (541) 963-8421
- Enumerated
- Jul 7, 2011
- Record last updated
- Aug 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (541) 963-1476
- Medicaid ID
- 500674427 OR
- Medicare enrollment
- Enrolled (PECOS I20140910001419); accepts Medicare assignment
- Medical or professional school
- Western University Of Health Sciences College Of Dental Med, 2011
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 34 in Oregon → Look up another NPI →
Also registered at 900 Sunset Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roger Akers, PTPhysical Therapist1396194734
- Matthew Allen, M.D.Diagnostic Radiology Physician1558445239
- Kylie Andrews, PAPhysician Assistant1437041530
- Patrick Archie, MDHematology & Oncology Physician1982895835
- Lewis Baynes, M.D.Emergency Medicine Physician1497780266
- Seymour Bronstein, M.D.Hematology & Oncology Physician1114984424
Verify Stephen Andrew McIlmoil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO166905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
170 Medicare Part D claims for 131 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Cefdinir18 claims
- Ondansetron Odt17 claims
- Prednisone13 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
- Grande Ronde Hospital IncLa Grande, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Andrew McIlmoil among 34 emergency medical services (emergency medicine) physician records in Oregon
Stephen Andrew McIlmoil, D.O. is one of 34 emergency medical services (emergency medicine) physician records with a practice address in Oregon. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 88% of them.
- NPI issued2011 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 32% of these records are
- Graduated2011 · median 2002 among the 11 with a school on file
- Record last updated2020 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in Oregon
There are 34 emergency medical services (emergency medicine) physician records in Oregon.
All 34 in Oregon → Every provider in La Grande → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- Brad Barlow, MDOntario, OR 979141003870536
- Kenneth Bean, MDOntario, OR 979141346274115
- Dominique Fontenette, MDOntario, OR 979141356549992
- Michael Mallin, M.D.Redmond, OR 977561730330788
- Andrew Parker, M.D.Redmond, OR 977561306005053
- David Magaret, MDPrineville, OR 977541801845953
- Michael McCaskill, M.D.Grants Pass, OR 975261023103546
- Eric Jensen, MDMedford, OR 975041700818697
Common questions
What is Stephen Andrew McIlmoil, D.O.'s NPI number?
Stephen Andrew McIlmoil, D.O.'s National Provider Identifier (NPI) is 1598052813, issued on Jul 7, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Andrew McIlmoil, D.O. located?
The NPPES record lists a practice address at 900 Sunset Dr, La Grande, OR, 97850. Phone: (541) 963-8421. Providers update this record themselves, so call before visiting.
How can I verify Stephen Andrew McIlmoil, D.O.'s license?
NPPES lists Oregon license number DO166905, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Andrew McIlmoil, D.O. prescribe under Medicare Part D?
In 2024, Stephen Andrew McIlmoil, D.O. had 170 Medicare Part D claims for 131 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.