Jason M. Wilhelmsen, MD
Emergency Medicine Physician · Ontario, OR
Jason M. Wilhelmsen, MD is an emergency medicine physician with a practice address in Ontario, Oregon, and NPI 1912964404, issued on Apr 27, 2006. Check the license (Oregon MD24430, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jason M. Wilhelmsen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD24430 OR
Self-reported in NPPES; status is on the state search - Practice location
- 351 SW 9TH St, Ontario, OR 97914
- Phone
- (541) 881-7000
- Enumerated
- Apr 27, 2006
- Record last updated
- Oct 18, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 297568 OR
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,079 in Oregon → Look up another NPI →
Also registered at 351 SW 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bethany Ericson, RD, LDRegistered Dietitian1710308804
Verify Jason M. Wilhelmsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD24430Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% more Medicare Part D claims than the average emergency medicine physician in 2024
309 Medicare Part D claims for 218 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 45 claims were for opioids.
Most prescribed
- Prednisone34 claims
- Hydrocodone-Acetaminophen27 claims
- Cephalexin25 claims
- Methylprednisolone25 claims
- Ondansetron Odt22 claims
- Albuterol Sulfate Hfa12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Jason M. Wilhelmsen among 1,079 emergency medicine physician records in Oregon
Jason M. Wilhelmsen, MD is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2007 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Oregon
There are 1,079 emergency medicine physician records in Oregon.
All 1,079 in Oregon → Every provider in Ontario → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joseph Boyle, MDOntario, OR 979141043277536
- Jeffrey Phillips, MDOntario, OR 979141235196619
- Matthew Scott, MDOntario, OR 979141225095615
- Rajaa Zayoud, M.D.Nyssa, OR 979131033110853
- Michael Hammar, MDBaker, OR 978741881768877
- Lewis Baynes, M.D.La Grande, OR 978501497780266
- Kenneth Chasteen, M.D.La Grande, OR 978501790711109
- David Ingram, MDLa Grande, OR 978501376071357
Common questions
What is Jason M. Wilhelmsen, MD's NPI number?
Jason M. Wilhelmsen, MD's National Provider Identifier (NPI) is 1912964404, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jason M. Wilhelmsen, MD located?
The NPPES record lists a practice address at 351 SW 9TH St, Ontario, OR, 97914. Phone: (541) 881-7000. Providers update this record themselves, so call before visiting.
How can I verify Jason M. Wilhelmsen, MD's license?
NPPES lists Oregon license number MD24430, 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 Jason M. Wilhelmsen, MD prescribe under Medicare Part D?
In 2024, Jason M. Wilhelmsen, MD had 309 Medicare Part D claims for 218 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Jason M. Wilhelmsen, MD's MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. 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.