James Melvin Martinson, M.D.
Internal Medicine Physician · Portland, OR
James Melvin Martinson, M.D. is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1144232554, issued on Aug 13, 2006. Check the license (Oregon MD151764, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Melvin Martinson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD151764 OR
57536 MT
Self-reported in NPPES; status is on the state search - Practice location
- 9205 SW Barnes RD, Portland, OR 97225
- Phone
- (503) 216-2906
- Enumerated
- Aug 13, 2006
- Record last updated
- Jul 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 500622826 OR
- Medicare enrollment
- Enrolled (PECOS I20100903000959); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 9205 SW Barnes RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maria Ampomah, M.S. CCC-SLPSpeech-Language Pathologist1871049940
- Christopher Andersen, RNRegistered Nurse1164343323
- Christopher Andrews, M.D.Emergency Medicine Physician1124113808
Verify James Melvin Martinson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD151764Check 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 5 group practices
- Providence Health And Services - WashingtonPortland, OR
- Providence Health And Services MtPortland, OR
- Providence Health And Services OregonPortland, OR
- Providence Health And Services WashingtonPortland, OR
- Providence Health And Services- WashingtonPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Melvin Martinson among 2,116 internal medicine physician records in Oregon
James Melvin Martinson, M.D. 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. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2005 · median 2008 among the 1,232 with a school on file
- Record last updated2021 · 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.
All 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Myrna Casono, MDPortland, OR 972251588666432
- Timothy Cleary, M.D.Portland, OR 972251215933411
- Cynthia Ferrier, M.D.Portland, OR 972251285607440
- Robert Fojtasek, MDPortland, OR 972251306888649
- Steven Gordon, MDPortland, OR 972251285616748
- Thomas Gragnola, MDPortland, OR 972251144220765
- Janette Green, M.D.Portland, OR 972251225029986
- Charles Kilo, M.D.Portland, OR 972251801869078
Common questions
What is James Melvin Martinson, M.D.'s NPI number?
James Melvin Martinson, M.D.'s National Provider Identifier (NPI) is 1144232554, issued on Aug 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Melvin Martinson, M.D. located?
The NPPES record lists a practice address at 9205 SW Barnes RD, Portland, OR, 97225. Phone: (503) 216-2906. Providers update this record themselves, so call before visiting.
How can I verify James Melvin Martinson, M.D.'s license?
NPPES lists Oregon license number MD151764, 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.