MS. ANN MARIE MOSBACHER NP-C
NPI 1770905564
Nurse Practitioner - Primary Care in Seattle, WA
About Ms. Ann Marie Mosbacher Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ANN MARIE MOSBACHER NP-C (NPI 1770905564) is an individual primary care provider in Seattle, Washington, licensed in Washington (AP60427846) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS, is affiliated with Evergreenhealth Medical Center, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
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
Ms. Ann Marie Mosbacher Np-c 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
3Medicare enrollment records show Ann Mosbacher reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98109
- Reassigned Medicare billing, Washington enrollment
- 2,678 clinicians in this Medicare group
Seattle, WA 98115
- Reassigned Medicare billing, Washington enrollment
- 10 clinicians in this Medicare group
Redmond, WA 98052
- Reassigned Medicare billing, Washington enrollment
- 1,074 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Evergreenhealth Medical Center
Acute Care Hospitals · Kirkland, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98108 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.
SEATTLE, WA 98108
SEATTLE, WA 98108
SEATTLE, WA 98108
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 Ann Mosbacher's NPI number?
The NPI number for Ann Mosbacher is 1770905564. It was assigned to this individual provider in the NPPES registry on January 13, 2014.
Where is Ann Mosbacher located?
Ann Mosbacher practices at 4515 Martin Luther King Jr Way S, Seattle, WA 98108. The listed phone number is (206) 320-5325.
What is Ann Mosbacher's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.
Is Ann Mosbacher enrolled in Medicare?
Yes. Ann Mosbacher 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 Ann Mosbacher's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Mosbacher reassigns Medicare benefits to 3 organizations: Kaiser Foundation Health Plan Of Washington (Seattle, WA), Felton Health Care Specialists, PLLC (Seattle, WA) and King County Public Hospital District No. 2 (Redmond, 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 Ann Mosbacher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Mosbacher accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Ann Mosbacher 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 Ann Mosbacher affiliated with any hospitals?
According to CMS data, Ann Mosbacher is affiliated with Evergreenhealth Medical Center.
When was this NPI record last updated?
The NPPES record for Ann Mosbacher was last updated on September 3, 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.
# Ms. Ann Marie Mosbacher, NP-C · NPI 1770905564
Primary Care physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since January 13, 2014.
## Identity
- **NPI:** 1770905564 (Entity type: Individual)
- **Enumerated:** January 13, 2014
- **Primary specialty:** Nurse Practitioner - Primary Care · taxonomy 363LP2300X
- **State license:** AP60427846 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 4515 MARTIN LUTHER KING JR WAY S, Seattle, WA 98108-2182
- **Phone:** (206) 320-5325
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of Washington (NPI 1396810701, Seattle, WA); Felton Health Care Specialists, PLLC (NPI 1710308242, Seattle, WA); King County Public Hospital District No. 2 (NPI 1750612883, Redmond, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** September 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1770905564) · Data from the CMS NPPES public registry.