DR. JAMES R PORTER JR. M.D.
NPI 1215989546
Urology in Seattle, WA
About Dr. James R Porter Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES R PORTER JR. M.D. (NPI 1215989546) is an individual urology provider in Seattle, Washington, licensed in Washington (MD00030361) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center, and maintains a secondary practice location in Las Vegas.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 R Porter Jr. 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 Reassignment
Medicare enrollment records show James Porter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 1,270 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 8
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Swedish Medical Center
Acute Care Hospitals · Seattle, WAOlympic Medical Center
Acute Care Hospitals · Port Angeles, WAJefferson Healthcare
Critical Access Hospitals · Port Townsend, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
SEATTLE, WA 98104
SEATTLE, WA 98104
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 Porter's NPI number?
The NPI number for James Porter is 1215989546. It was assigned to this individual provider in the NPPES registry on May 16, 2006.
Where is James Porter located?
James Porter practices at 1101 Madison St Suite 1400, Seattle, WA 98104. The listed phone number is (206) 386-6266.
What is James Porter's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is James Porter enrolled in Medicare?
Yes. James Porter 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 James Porter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Porter reassigns Medicare benefits to Swedish Health Services (Seattle, WA). 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 James Porter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Porter accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list James Porter 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 Porter affiliated with any hospitals?
According to CMS data, James Porter is affiliated with Swedish Medical Center, Olympic Medical Center and Jefferson Healthcare.
When was this NPI record last updated?
The NPPES record for James Porter was last updated on June 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.