DR. JAMES MELVIN MARTINSON M.D.
NPI 1144232554
Internal Medicine in Portland, OR
About Dr. James Melvin Martinson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES MELVIN MARTINSON M.D. (NPI 1144232554) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD151764) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of Medical College Of Wisconsin (2005).
NPPES Registry Identity
Specialties & Licenses 4
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. James Melvin Martinson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show James Martinson reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Olympia, WA 98506
- Reassigned Medicare billing, Oregon enrollment
- 27 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Oregon enrollment
- 23 clinicians in this Medicare group
Walla Walla, WA 99362
- Reassigned Medicare billing, Oregon enrollment
- 23 clinicians in this Medicare group
Spokane, WA 99204
- Reassigned Medicare billing, Oregon enrollment
- 23 clinicians in this Medicare group
Missoula, MT 59802
- Reassigned Medicare billing, Oregon enrollment
- 21 clinicians in this Medicare group
Torrance, CA 90503
- Reassigned Medicare billing, Oregon enrollment
- 21 clinicians in this Medicare group
Anchorage, AK 99508
- Reassigned Medicare billing, Oregon enrollment
- 22 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence St Vincent Medical Center
Acute Care Hospitals · Portland, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, OR 97225
PORTLAND, OR 97225
PORTLAND, OR 97225
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is James Martinson's NPI number?
The NPI number for James Martinson is 1144232554. It was assigned to this individual provider in the NPPES registry on August 13, 2006.
Where is James Martinson located?
James Martinson practices at 9205 SW Barnes Rd, Portland, OR 97225. The listed phone number is (503) 216-2906.
What is James Martinson's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is James Martinson enrolled in Medicare?
Yes. James Martinson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for James Martinson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Martinson reassigns Medicare benefits to 8 organizations: Providence Health & Services Oregon (Portland, OR), Providence Health & Services Washington (Olympia, WA), Providence Health & Services- Washington (Everett, WA), Providence Health & Services - Washington (Walla Walla, WA), Providence Health & Services Washington (Spokane, WA) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Martinson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Martinson accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and Premera Blue Cross Blue Shield of Alaska list James Martinson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is James Martinson affiliated with any hospitals?
According to CMS data, James Martinson is affiliated with Providence St Vincent Medical Center.
When was this NPI record last updated?
The NPPES record for James Martinson was last updated on July 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. James Melvin Martinson, M.D. · NPI 1144232554
Internal Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since August 13, 2006.
## Identity
- **NPI:** 1144232554 (Entity type: Individual)
- **Enumerated:** August 13, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD151764 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9205 SW BARNES RD, Portland, OR 97225-6603
- **Phone:** (503) 216-2906
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Providence Health & Services Oregon (NPI 1053403394, Portland, OR); Providence Health & Services Washington (NPI 1174744304, Olympia, WA); Providence Health & Services- Washington (NPI 1124270715, Everett, WA); Providence Health & Services - Washington (NPI 1922259738, Walla Walla, WA); Providence Health & Services Washington (NPI 1194099390, Spokane, WA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2005
## Record status
- **NPPES last updated:** July 22, 2021
- **Other identifiers:** Other P00940166 (OR); Medicaid 500622826 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1144232554) · Data from the CMS NPPES public registry.