Mark Nelson Margoles, MS
Family Medicine Physician · Keizer, OR
Mark Nelson Margoles, MS is a family medicine physician with a practice address in Keizer, Oregon, and NPI 1871645093, issued on Jan 17, 2007. Check the license (Oregon MD21443, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Nelson Margoles
- Credential
- MS
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD21443 OR
Self-reported in NPPES; status is on the state search - Practice location
- 5940 Ulali Dr NE, Keizer, OR 97303
- Phone
- (800) 813-2000
- Enumerated
- Jan 17, 2007
- Record last updated
- Oct 10, 2025
- Entity
- Type 1 · individual
Also registered at 5940 Ulali Dr NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen BorgoyNurse Practitioner1871891663
- Jesse Hall, MS, RDN, CDRegistered Dietitian1588068522
- Tiffany IwasaPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1548660681
- Megan Kauffman, NPNurse Practitioner1841669439
- Caroline King-Widdall, M.D.Family Medicine Physician1336267707
- Joshua Meador, D.O.Family Medicine Physician1538149653
Verify Mark Nelson Margoles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD21443Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average family medicine physician in 2024
4,579 Medicare Part D claims for 1,955 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 638 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen242 claims
- Atorvastatin Calcium198 claims
- Oxycodone Hcl180 claims
- Pantoprazole Sodium173 claims
- Trazodone Hcl123 claims
- Tamsulosin Hcl108 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.
22 family medicine physician records list a practice address in Keizer
They are 22 of the 446 NPPES records with a practice address in Keizer, and 2,847 family medicine physician records in Oregon.
All 22 in Keizer → All 2,847 in Oregon → Every provider in Keizer →
Other family medicine physician records in Oregon
- Roxana Abbott, DOPortland, OR1275799082
- David Abdun-Nur, M.D.Grants Pass, OR1396737847
- Traci Ackron, D.O.Hillsboro, OR1336588789
- Orlando Acosta, MDHood River, OR1912990375
- Michele Adamcak, D.O.Tigard, OR1114097227
- Standley Adamek, DOTigard, OR1144515230
- Harry Adamo, MDSpringfield, OR1235191412
- Allyson AdamsClackamas, OR1043899537
- Caroline Adams, MDGresham, OR1164840815
- Justin Adams, M.D.Medford, OR1760616866
Common questions
What is Mark Nelson Margoles, MS's NPI number?
Mark Nelson Margoles, MS's National Provider Identifier (NPI) is 1871645093, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Nelson Margoles, MS located?
The NPPES record lists a practice address at 5940 Ulali Dr NE, Keizer, OR, 97303. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Mark Nelson Margoles, MS's license?
NPPES lists Oregon license number MD21443, 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 Mark Nelson Margoles, MS prescribe under Medicare Part D?
In 2024, Mark Nelson Margoles, MS had 4,579 Medicare Part D claims for 1,955 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.