MR. JOSEPH M NJENGA
NPI 1184109951
Nurse Anesthetist, Certified Registered in Everett, WA
About Mr. Joseph M Njenga NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOSEPH M NJENGA (NPI 1184109951) is an individual nurse anesthetist, certified registered in Everett, Washington, licensed in Washington (AP61143410) and active in the NPI registry since September 2018. He is affiliated with Providence Regional Medical Center Everett and is a graduate of Other (2020).
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 and accepts Medicare assignment
Mr. Joseph M Njenga 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 Joseph Njenga reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Providence Wa Anesthesia Services, PC
- 171 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Fresno, CA 93720
- Reassigned Medicare billing, Washington enrollment
- 13 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
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence Regional Medical Center Everett
Acute Care Hospitals · Everett, WAHarborview Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98201 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.
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.
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 Joseph Njenga's NPI number?
The NPI number for Joseph Njenga is 1184109951. It was assigned to this individual provider in the NPPES registry on September 27, 2018.
Where is Joseph Njenga located?
Joseph Njenga practices at 1700 13th St, Everett, WA 98201. The listed phone number is (425) 261-2000.
What is Joseph Njenga's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Joseph Njenga enrolled in Medicare?
Yes. Joseph Njenga 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 Joseph Njenga's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Njenga reassigns Medicare benefits to 3 organizations: Providence Wa Anesthesia Services, P.C. (Everett, WA), The Association Of University Physicians (Seattle, WA) and Valley Regional Anesthesia Associates Inc (Fresno, CA). 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 Joseph Njenga's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Njenga accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Joseph Njenga 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 Joseph Njenga affiliated with any hospitals?
According to CMS data, Joseph Njenga is affiliated with Providence Regional Medical Center Everett and Harborview Medical Center.
When was this NPI record last updated?
The NPPES record for Joseph Njenga was last updated on June 17, 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.
# Mr. Joseph M Njenga · NPI 1184109951
Nurse Anesthetist, Certified Registered physician in Everett, Washington. Individual provider, active in the CMS NPPES registry since September 27, 2018.
## Identity
- **NPI:** 1184109951 (Entity type: Individual)
- **Enumerated:** September 27, 2018
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** AP61143410 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1700 13TH ST, Everett, WA 98201-1689
- **Phone:** (425) 261-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Providence Wa Anesthesia Services, P.C. (NPI 1669615894, Everett, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA); Valley Regional Anesthesia Associates Inc (NPI 1578272415, Fresno, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1184109951) · Data from the CMS NPPES public registry.