Marvin David Seppala, M.D.
Addiction Medicine (Psychiatry & Neurology) Physician · Newberg, OR
Marvin David Seppala, M.D. is an addiction medicine (psychiatry & neurology) physician with a practice address in Newberg, Oregon, and NPI 1548329055, issued on Dec 8, 2006. Check the license (Oregon MD15805, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marvin David Seppala
- Credential
- M.D.
- Primary taxonomy
- Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
- License number
- MD15805 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1901 Esther St, Newberg, OR 97132
- Phone
- (503) 554-4334
- Enumerated
- Dec 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1901 Esther St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Larry Caramella, BA CADCAddiction (Substance Use Disorder) Counselor1386932341
- Anne Church, MA,LPC,CADC IIAddiction (Substance Use Disorder) Counselor1841506961
- Joseph Galligan, MA, CADC IIAddiction (Substance Use Disorder) Counselor1821415480
- David Kays, PSYDClinical Psychologist1447731625
- Maxwell Kuauss, MAStudent in an Organized Health Care Education/Training Program1811213689
- Janice Montgomery, RDRegistered Dietitian1457409021
Verify Marvin David Seppala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD15805Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Addiction Medicine (Psychiatry & Neurology) Physician providers in Oregon
There are 6 addiction medicine (psychiatry & neurology) physician records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other addiction medicine (psychiatry & neurology) physician records in Oregon
- Jennifer DarnellPortland, OR1407381254
- Eve Klein, M.D.Portland, OR1982846234
- Joshua Leibovitz, MDPortland, OR1912929910
- Wendy Linker, M.D.Lake Oswego, OR1437388261
- Michael Resnick, MDPortland, OR1467545996
Common questions
What is Marvin David Seppala, M.D.'s NPI number?
Marvin David Seppala, M.D.'s National Provider Identifier (NPI) is 1548329055, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marvin David Seppala, M.D. located?
The NPPES record lists a practice address at 1901 Esther St, Newberg, OR, 97132. Phone: (503) 554-4334. Providers update this record themselves, so call before visiting.
How can I verify Marvin David Seppala, M.D.'s license?
NPPES lists Oregon license number MD15805, 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.