LINDA DIANE WALLEN MD
NPI 1225046758
Pediatrics - Neonatal-Perinatal Medicine in Seattle, WA
About Linda Diane Wallen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LINDA DIANE WALLEN MD (NPI 1225046758) is an individual neonatal-perinatal medicine provider in Seattle, Washington, licensed in Washington (MD00045285) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Linda Diane Wallen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Linda Wallen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- 1,443 clinicians in this Medicare group
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Seattle Childrens Hospital
- 912 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.
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 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 Linda Wallen's NPI number?
The NPI number for Linda Wallen is 1225046758. It was assigned to this individual provider in the NPPES registry on August 3, 2006.
Where is Linda Wallen located?
Linda Wallen practices at 1959 NE Pacific St Box 356320, Seattle, WA 98195. The listed phone number is (206) 543-3200.
What is Linda Wallen's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Linda Wallen enrolled in Medicare?
Yes. Linda Wallen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Linda Wallen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Linda Wallen reassigns Medicare benefits to 2 organizations: The Association Of Chrmc And University Physicians (Seattle, WA) and Seattle Children's Hospital (Seattle, WA). 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 Linda Wallen'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 Linda Wallen was last updated on March 25, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Linda Diane Wallen, MD · NPI 1225046758
Neonatal-Perinatal Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since August 3, 2006.
## Identity
- **NPI:** 1225046758 (Entity type: Individual)
- **Enumerated:** August 3, 2006
- **Primary specialty:** Pediatrics - Neonatal-Perinatal Medicine · taxonomy 2080N0001X
- **State license:** MD00045285 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1959 NE PACIFIC ST, BOX 356320, Seattle, WA 98195-0001
- **Phone:** (206) 543-3200
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The Association Of Chrmc And University Physicians (NPI 1255449963, Seattle, WA); Seattle Children's Hospital (NPI 1003319500, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 25, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1225046758) · Data from the CMS NPPES public registry.