John Oppenheimer, MD
Internal Medicine Physician · Portland, OR
John Oppenheimer, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1922071513, issued on Feb 13, 2006. Check the license on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Oppenheimer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036058549 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1130 NW 22ND Ave #220, Portland, OR 97210
- Phone
- (503) 413-8988
- Enumerated
- Feb 13, 2006
- Record last updated
- Feb 24, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (503) 274-4815
- Medicaid IDs
- 0571232 IA
036058549002 IL
273137 OR
8497364 WA - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Verify John Oppenheimer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Oppenheimer among 2,116 internal medicine physician records in Oregon
John Oppenheimer, MD is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2011 · 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 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, 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 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stephen Baugh, MDPortland, OR 972101972577740
- James Borden, MDPortland, OR 972101679555742
- Patrick Dunn, M.D.Portland, OR 972101669447231
- Barry Egener, MDPortland, OR 972101437124088
- Joyce KaynardPortland, OR 972101720053317
- Curtis Marr, M.D.Portland, OR 972101669447264
- Erich Meihoff, MDPortland, OR 972101144295916
- Timothy Persse, MDPortland, OR 972101396710810
Common questions
What is John Oppenheimer, MD's NPI number?
John Oppenheimer, MD's National Provider Identifier (NPI) is 1922071513, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Oppenheimer, MD located?
The NPPES record lists a practice address at 1130 NW 22ND Ave #220, Portland, OR, 97210. Phone: (503) 413-8988. Providers update this record themselves, so call before visiting.
How can I verify John Oppenheimer, MD's license?
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.