Robert Duffy, D.O.
Psychiatry Physician · Corvallis, OR
Robert Duffy, D.O. is a psychiatry physician with a practice address in Corvallis, Oregon, and NPI 1487073235, issued on Apr 9, 2014. Check the license (Oregon DO181354, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert Duffy
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- DO181354 OR
PG167897 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3509 NW Samaritan Dr Ste 100, Corvallis, OR 97330
- Phone
- (541) 768-5144
- Enumerated
- Apr 9, 2014
- Record last updated
- Nov 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190401002530); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 764 in Oregon → Look up another NPI →
Also registered at 3509 NW Samaritan Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margaret Heine, MDPsychiatry Physician1649549155
- Sydney Lefay, D.O.Psychiatry Physician1801215249
- Susan SpiveyPsychiatry Physician1437564283
Verify Robert Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO181354Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- County OF Clackamas Office OF County AuditorOregon City, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Duffy among 764 psychiatry physician records in Oregon
Robert Duffy, D.O. is one of 764 psychiatry physician records with a practice address in Oregon. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2014 · median 2009 among the 300 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
60 psychiatry physician records list a practice address in Corvallis
They are 60 of the 4,096 NPPES records with a practice address in Corvallis, and 764 psychiatry physician records in Oregon.
All 764 in Oregon → Every provider in Corvallis → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kyle Bernheim, M.D.Corvallis, OR 973301316126709
- Mary Black, M.D.Corvallis, OR 973301528264207
- Allison Dark, MDCorvallis, OR 973301487856290
- Michael Delollis, MDCorvallis, OR 973301366440323
- James Douglas, M.D.Corvallis, OR 973301265525802
- Daniel Engle, M.D.Corvallis, OR 973301972544351
- Kenneth Erickson, M.D., PHDCorvallis, OR 973301639110331
- Jennifer Hamilton, M.D.Corvallis, OR 973301952347650
Common questions
What is Robert Duffy, D.O.'s NPI number?
Robert Duffy, D.O.'s National Provider Identifier (NPI) is 1487073235, issued on Apr 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Robert Duffy, D.O. located?
The NPPES record lists a practice address at 3509 NW Samaritan Dr Ste 100, Corvallis, OR, 97330. Phone: (541) 768-5144. Providers update this record themselves, so call before visiting.
How can I verify Robert Duffy, D.O.'s license?
NPPES lists Oregon license number DO181354, 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. 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.