John S. Loomis, MD
Family Medicine Physician · Portland, OR
John S. Loomis, MD is a family medicine physician with a practice address in Portland, Oregon, and NPI 1487618781, issued on Apr 13, 2006. Check the license (Oregon MD19850, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John S. Loomis
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD19850 OR
Self-reported in NPPES; status is on the state search - Practice location
- 18750 SE Stark St, Portland, OR 97233
- Phone
- (503) 666-6717
- Enumerated
- Apr 13, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (503) 666-6745
- Medicaid ID
- 079939 OR
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 18750 SE Stark St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Love, M.D.Family Medicine Physician1043522949
- Jean-Elie Moreau, FNPNurse Practitioner1821051509
- Stephanie O'Connor, FNPNurse Practitioner1720060353
Verify John S. Loomis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD19850Check 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 S. Loomis among 2,847 family medicine physician records in Oregon
John S. Loomis, MD is one of 2,847 family medicine physician records with a practice address in Oregon. 75% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 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 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
561 family medicine physician records list a practice address in Portland
They are 561 of the 42,088 NPPES records with a practice address in Portland, and 2,847 family medicine physician records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,847 in Oregon → Every provider in Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Susanne Bobenrieth, M.D.Portland, OR 972331871577742
- Anong Burke, MDPortland, OR 972331932205556
- Daniel Copp, MDPortland, OR 972331093903700
- Audrey Crist, MDPortland, OR 972331790888907
- Peter Hatcher, MDPortland, OR 972331356492979
- Margaret Hayes, MDPortland, OR 972331437164951
- Lorissa Klaus, M.D.Portland, OR 972331831296979
- Rowena Manalo, M.D.Portland, OR 972331689776163
Common questions
What is John S. Loomis, MD's NPI number?
John S. Loomis, MD's National Provider Identifier (NPI) is 1487618781, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John S. Loomis, MD located?
The NPPES record lists a practice address at 18750 SE Stark St, Portland, OR, 97233. Phone: (503) 666-6717. Providers update this record themselves, so call before visiting.
How can I verify John S. Loomis, MD's license?
NPPES lists Oregon license number MD19850, 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.