Michael Duncan Hammar, MD
Emergency Medicine Physician · Baker, OR
Michael Duncan Hammar, MD is an emergency medicine physician with a practice address in Baker, Oregon, and NPI 1881768877, issued on Nov 20, 2006. Check the license (Oregon MD12236, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael Duncan Hammar
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD12236 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3325 Pocahontas RD, Baker, OR 97874
- Phone
- (541) 523-6461
- Enumerated
- Nov 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,079 in Oregon → Look up another NPI →
Verify Michael Duncan Hammar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD12236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael Duncan Hammar among 1,079 emergency medicine physician records in Oregon
Michael Duncan Hammar, MD is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 59% newer
- In a Medicare fileNo · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2007 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Oregon
There are 1,079 emergency medicine physician records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,079 in Oregon → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Lewis Baynes, M.D.La Grande, OR 978501497780266
- Kenneth Chasteen, M.D.La Grande, OR 978501790711109
- David Ingram, MDLa Grande, OR 978501376071357
- John Page, M.D.La Grande, OR 978501760493522
- Danielle SisulLa Grande, OR 978501023275914
- Kim Peterson, DOHermiston, OR 978381821028960
- Russel Nichols, MDHeppner, OR 978361730187436
- Rajaa Zayoud, M.D.Nyssa, OR 979131033110853
Common questions
What is Michael Duncan Hammar, MD's NPI number?
Michael Duncan Hammar, MD's National Provider Identifier (NPI) is 1881768877, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Duncan Hammar, MD located?
The NPPES record lists a practice address at 3325 Pocahontas RD, Baker, OR, 97874. Phone: (541) 523-6461. Providers update this record themselves, so call before visiting.
How can I verify Michael Duncan Hammar, MD's license?
NPPES lists Oregon license number MD12236, 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.