Marion Diermayer
Internal Medicine Physician · Springfield, OR
Marion Diermayer is an internal medicine physician with a practice address in Springfield, Oregon, and NPI 1548777170, issued on Jan 4, 2018. Check the license (Oregon MD20285, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marion Diermayer
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD20285 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2260 Marcola RD, Springfield, OR 97477
- Phone
- (541) 685-1800
- Enumerated
- Jan 4, 2018
- Record last updated
- Jan 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 2260 Marcola RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Marks, M.D.Family Medicine Physician1689913063
- Frank Turner, MDPulmonary Disease Physician1982984142
- Laura Van Horn, PHARMDPharmacist1336559160
- David Vandriesche, R.PH.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1033547609
- Duc Vo, M.D.Colon & Rectal Surgery Physician1770564015
Verify Marion Diermayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD20285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35 internal medicine physician records list a practice address in Springfield
They are 35 of the 2,209 NPPES records with a practice address in Springfield, and 2,116 internal medicine physician records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 35 in Springfield → All 2,116 in Oregon → Every provider in Springfield →
Other internal medicine physician records in Oregon
- Charmaine Clarisse Abalos, M.D.Medford, OR1700376050
- Soraya Abbassian, M.D.Portland, OR1225029184
- Mohamed Abdel Khalek, M.DRoseburg, OR1972687390
- Rand AbedalweliPortland, OR1265019996
- Robert Abernathy, M.D.Bend, OR1063433449
- Rebecca Abney, D.O.Portland, OR1881984748
- Mohamed Aboukhashan, MDMedford, OR1932350782
- Allison Abraham, D.O.Portland, OR1831488444
- Heidi Abreu Pacheco, M.DMount Angel, OR1669691721
- Hennie Abrio, MDRoseburg, OR1891925129
Common questions
What is Marion Diermayer's NPI number?
Marion Diermayer's National Provider Identifier (NPI) is 1548777170, issued on Jan 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Marion Diermayer located?
The NPPES record lists a practice address at 2260 Marcola RD, Springfield, OR, 97477. Phone: (541) 685-1800. Providers update this record themselves, so call before visiting.
How can I verify Marion Diermayer's license?
NPPES lists Oregon license number MD20285, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.