Jon Martin Winjum, MD
Family Medicine Physician · Oregon City, OR
Jon Martin Winjum, MD is a family medicine physician with a practice address in Oregon City, Oregon, and NPI 1730156639, issued on Mar 1, 2006. Check the license (Oregon MD20031, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jon Martin Winjum
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD20031 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1420 John Adams St, Oregon City, OR 97045
- Phone
- (503) 656-1484
- Enumerated
- Mar 1, 2006
- Record last updated
- Oct 1, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (503) 650-1976
- Medicaid ID
- 082987 OR
- Medicare enrollment
- Enrolled (PECOS I20100716000186); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 1420 John Adams St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Eilersen, MDFamily Medicine Physician1700853652
- Jennifer Grant, PAPhysician Assistant1144497736
- Lindsey HerndonFamily Nurse Practitioner1598313876
- Jacqueline Mbugua, FNPNurse Practitioner1568149672
- Julia Pulliam, PAMedical Physician Assistant1992761183
- Mara Sagmiller, NPPrimary Care Nurse Practitioner1760912943
Verify Jon Martin Winjum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD20031Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average family medicine physician in 2024
14,257 Medicare Part D claims for 1,069 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 771 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,057 claims
- Levothyroxine Sodium701 claims
- Lisinopril636 claims
- Losartan Potassium572 claims
- Amlodipine Besylate544 claims
- Metoprolol Succinate362 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
- Praxis Health PCOregon City, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jon Martin Winjum among 2,847 family medicine physician records in Oregon
Jon Martin Winjum, MD is one of 2,847 family medicine physician records with a practice address in Oregon. 75% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1993 · median 2009 among the 1,671 with a school on file
- 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 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 family medicine physician records list a practice address in Oregon City
They are 28 of the 1,531 NPPES records with a practice address in Oregon City, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Oregon City → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Michelle Alberts, MDOregon City, OR 970451841273364
- William Barth, M.D.Oregon City, OR 970451396807673
- Alejandro Contreras, N.D.Oregon City, OR 970451578684692
- Christopher Eilersen, MDOregon City, OR 970451700853652
- Douglas Eubanks, DOOregon City, OR 970451851459382
- Robert Hartog, M.D.Oregon City, OR 970451821063256
- Julie Hurlocker, M.D.Oregon City, OR 970451174638563
- Karl Magsarili, M.D.Oregon City, OR 970451649222183
Common questions
What is Jon Martin Winjum, MD's NPI number?
Jon Martin Winjum, MD's National Provider Identifier (NPI) is 1730156639, issued on Mar 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jon Martin Winjum, MD located?
The NPPES record lists a practice address at 1420 John Adams St, Oregon City, OR, 97045. Phone: (503) 656-1484. Providers update this record themselves, so call before visiting.
How can I verify Jon Martin Winjum, MD's license?
NPPES lists Oregon license number MD20031, 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 Jon Martin Winjum, MD prescribe under Medicare Part D?
In 2024, Jon Martin Winjum, MD had 14,257 Medicare Part D claims for 1,069 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.