REBECCA MASS-KRAJEWSKI
NPI 1174931042
Nurse Practitioner - Family in Redmond, WA
About Rebecca Mass-krajewski NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REBECCA MASS-KRAJEWSKI (NPI 1174931042) is an individual family provider in Redmond, Washington, licensed in Washington (AP60492406) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Rebecca Mass-krajewski is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Rebecca Mass-krajewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98052 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Rebecca Mass-krajewski's NPI number?
The NPI number for Rebecca Mass-krajewski is 1174931042. It was assigned to this individual provider in the NPPES registry on July 23, 2014.
Where is Rebecca Mass-krajewski located?
Rebecca Mass-krajewski practices at 16329 NE 80th St, Redmond, WA 98052. The listed phone number is (425) 610-8030.
What is Rebecca Mass-krajewski's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Rebecca Mass-krajewski enrolled in Medicare?
Yes. Rebecca Mass-krajewski is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Rebecca Mass-krajewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Mass-krajewski reassigns Medicare benefits to King County Public Hospital District No. 2 (Redmond, 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 Rebecca Mass-krajewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rebecca Mass-krajewski accept?
Health plans from Moda Health Plan, Inc. and Providence Health Plan list Rebecca Mass-krajewski 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.
When was this NPI record last updated?
The NPPES record for Rebecca Mass-krajewski was last updated on February 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Rebecca Mass-Krajewski · NPI 1174931042
Family physician in Redmond, Washington. Individual provider, active in the CMS NPPES registry since July 23, 2014.
## Identity
- **NPI:** 1174931042 (Entity type: Individual)
- **Enumerated:** July 23, 2014
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP60492406 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 16329 NE 80TH ST, Redmond, WA 98052-3820
- **Phone:** (425) 610-8030
## 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:** King County Public Hospital District No. 2 (NPI 1750612883, Redmond, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 18, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1174931042) · Data from the CMS NPPES public registry.