NPPES file of Aug 9, 2026

James Robert Thayer, MD

Internal Medicine Physician · Portland, OR

James Robert Thayer, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1972551976, issued on May 4, 2006. Check the license (Oregon MD13684, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972551976
Name
James Robert Thayer
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD13684 OR
Self-reported in NPPES; status is on the state search
Practice location
426 SW Stark St, Portland, OR 97204
Phone
(503) 988-5140
Enumerated
May 4, 2006
Record last updated
Aug 28, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(503) 988-5180
Medicaid IDs
105007 OR
500628019 OR
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →

Also registered at 426 SW Stark St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gregory Allers, DOFamily Medicine Physician1649311911
  2. Gretchen Barron, CHNCommunity Health Registered Nurse1942599527
  3. Julianne Bava, NMNPAdvanced Practice Midwife1841343217
  4. Laurie Beeson, FNPFamily Nurse Practitioner1194878470
  5. Eleanor Benecki, PAPhysician Assistant1588796486
  6. Roberta Bentson-Royal, PNPPediatric Nurse Practitioner1679626964

Verify James Robert Thayer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD13684    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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James Robert Thayer among 2,116 internal medicine physician records in Oregon

James Robert Thayer, 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 updated2013 · 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

  1. James Bane, MDPortland, OR 972041952431470
  2. Wayne Englander, MDPortland, OR 972041114079472
  3. Richard Gil, M.D.Portland, OR 972041023300837
  4. Richard Houle, MDPortland, OR 972041043362312
  5. Song Kim, MDPortland, OR 972041275685455
  6. Peter Kliewer, MDPortland, OR 972041588702476
  7. Qian Leng, MDPortland, OR 972041154637015
  8. Mary Ware, MDPortland, OR 972041457483844

Common questions

What is James Robert Thayer, MD's NPI number?

James Robert Thayer, MD's National Provider Identifier (NPI) is 1972551976, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Robert Thayer, MD located?

The NPPES record lists a practice address at 426 SW Stark St, Portland, OR, 97204. Phone: (503) 988-5140. Providers update this record themselves, so call before visiting.

How can I verify James Robert Thayer, MD's license?

NPPES lists Oregon license number MD13684, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.