DUNCAN JAMES YORK MD
NPI 1184666471
Internal Medicine in Portland, OR
About Duncan James York Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DUNCAN JAMES YORK MD (NPI 1184666471) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD26551) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Kaiser Sunnyside Medical Center, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Duncan James York Md 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 Reassignment
Medicare enrollment records show Duncan York reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97214
- Reassigned Medicare billing, Oregon and Washington enrollments
- Also billed through NPI 1871848457 (Washington)
- 3,207 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
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.
Kaiser Sunnyside Medical Center
Acute Care Hospitals · Clackamas, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97216 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 97216
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 Duncan York's NPI number?
The NPI number for Duncan York is 1184666471. It was assigned to this individual provider in the NPPES registry on June 12, 2006.
Where is Duncan York located?
Duncan York practices at 10000 SE Main St Suite 205, Portland, OR 97216. The listed phone number is (503) 261-6985.
What is Duncan York's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Duncan York enrolled in Medicare?
Yes. Duncan York 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 organization bills Medicare for Duncan York's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Duncan York reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Portland, OR). The 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 Duncan York's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Duncan York affiliated with any hospitals?
According to CMS data, Duncan York is affiliated with Kaiser Sunnyside Medical Center.
When was this NPI record last updated?
The NPPES record for Duncan York was last updated on February 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Duncan James York, MD · NPI 1184666471
Internal Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 12, 2006.
## Identity
- **NPI:** 1184666471 (Entity type: Individual)
- **Enumerated:** June 12, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD26551 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 10000 SE MAIN ST, SUITE 205, Portland, OR 97216-2448
- **Phone:** (503) 261-6985 · **Fax:** (503) 261-6790
## 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:** Kaiser Foundation Health Plan Of The Northwest (NPI 1063990695, Portland, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** February 4, 2022
- **Other identifiers:** Medicaid 247330 (OR); Medicaid 8456451 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1184666471) · Data from the CMS NPPES public registry.