JOHN L. PETERSEN MD
NPI 1306926225
Internal Medicine - Cardiovascular Disease in Seattle, WA
About John L. Petersen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN L. PETERSEN MD (NPI 1306926225) is an individual cardiovascular disease provider in Seattle, Washington, licensed in Washington (MD00010656) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John L. Petersen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Petersen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 76 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.
Physician 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Petersen's NPI number?
The NPI number for John Petersen is 1306926225. It was assigned to this individual provider in the NPPES registry on October 16, 2006.
Where is John Petersen located?
John Petersen practices at 801 Broadway Ste 808, Seattle, WA 98122. The listed phone number is (206) 292-7990.
What is John Petersen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is John Petersen enrolled in Medicare?
Yes. John Petersen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Petersen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Petersen 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 John Petersen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Petersen was last updated on February 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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. Petersen, MD · NPI 1306926225
Cardiovascular Disease physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since October 16, 2006.
## Identity
- **NPI:** 1306926225 (Entity type: Individual)
- **Enumerated:** October 16, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD00010656 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 801 BROADWAY STE 808, Seattle, WA 98122-4328
- **Phone:** (206) 292-7990 · **Fax:** (206) 292-4882
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Swedish Health Services (NPI 1720029028, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 17, 2009
- **Other identifiers:** Medicare UPIN A 05360; Medicaid 8125205 (WA); Medicare PIN AB 07198 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1306926225) · Data from the CMS NPPES public registry.