JOHN L MIGNONE MD, PHD
NPI 1194834127
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in Seattle, WA
About John L Mignone Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN L MIGNONE MD, PHD (NPI 1194834127) is an individual advanced heart failure and transplant cardiology provider in Seattle, Washington, licensed in Washington (MD60069013) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center / Cherry Hill, and is a graduate of Duke University School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 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
John L Mignone Md, Phd 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
2Medicare enrollment records show John Mignone reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 76 clinicians in this Medicare group
Edna Bay, AK 99901
- Reassigned Medicare billing, Texas enrollment
- 640 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 14
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Swedish Medical Center / Cherry Hill
Acute Care Hospitals · Seattle, WASwedish Edmonds Hospital
Acute Care Hospitals · Edmonds, WASwedish Medical Center
Acute Care Hospitals · Seattle, WATacoma General Allenmore Hospital
Acute Care Hospitals · Tacoma, WASwedish Issaquah
Acute Care Hospitals · Issaquah, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98122 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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98122
SEATTLE, WA 98122
SEATTLE, WA 98122
SEATTLE, WA 98122
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 John Mignone's NPI number?
The NPI number for John Mignone is 1194834127. It was assigned to this individual provider in the NPPES registry on August 30, 2006.
Where is John Mignone located?
John Mignone practices at 1600 E Jefferson St Ste 600, Seattle, WA 98122. The listed phone number is (206) 215-4545.
What is John Mignone's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.
Is John Mignone enrolled in Medicare?
Yes. John Mignone 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 John Mignone's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mignone reassigns Medicare benefits to 2 organizations: Swedish Health Services (Seattle, WA) and Southeast Alaska Regional Health Consortium (Edna Bay, AK). 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 John Mignone's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Mignone accept?
Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list John Mignone 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 John Mignone affiliated with any hospitals?
According to CMS data, John Mignone is affiliated with Swedish Medical Center / Cherry Hill, Swedish Edmonds Hospital, Swedish Medical Center, Tacoma General Allenmore Hospital and Swedish Issaquah.
When was this NPI record last updated?
The NPPES record for John Mignone was last updated on October 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# John L Mignone, MD, PHD · NPI 1194834127
Advanced Heart Failure and Transplant Cardiology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since August 30, 2006.
## Identity
- **NPI:** 1194834127 (Entity type: Individual)
- **Enumerated:** August 30, 2006
- **Primary specialty:** Internal Medicine - Advanced Heart Failure and Transplant Cardiology · taxonomy 207RA0001X
- **State license:** MD60069013 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 E JEFFERSON ST STE 600, Seattle, WA 98122-5649
- **Phone:** (206) 215-4545 · **Fax:** (206) 215-4550
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Swedish Health Services (NPI 1720029028, Seattle, WA); Southeast Alaska Regional Health Consortium (NPI 1518403906, Edna Bay, AK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Duke University School Of Medicine, class of 2006
## Record status
- **NPPES last updated:** October 7, 2020
- **Other identifiers:** Medicaid 1194834127 (WA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1194834127) · Data from the CMS NPPES public registry.