COLLEEN CHRISTINA KNIFFIN MD
NPI 1952565269
Emergency Medicine in Bellevue, WA
About Colleen Christina Kniffin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COLLEEN CHRISTINA KNIFFIN MD (NPI 1952565269) is an individual emergency medicine provider in Bellevue, Washington, licensed in Washington (MD60471532) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, is affiliated with Overlake Hospital Medical Center, and is a graduate of University Of Minnesota Medical School (2008).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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
Colleen Christina Kniffin Md 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
2Medicare enrollment records show Colleen Kniffin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bellevue, WA 98004
- Reassigned Medicare billing, Washington enrollment
- 50 clinicians in this Medicare group
Snoqualmie, WA 98065
- Reassigned Medicare billing, Washington enrollment
- Also billed through NPI 1144432634 (Washington)
- 144 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 4
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.
Overlake Hospital Medical Center
Acute Care Hospitals · Bellevue, WASnoqualmie Valley Hospital
Critical Access Hospitals · Snoqualmie, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98004 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 Colleen Kniffin's NPI number?
The NPI number for Colleen Kniffin is 1952565269. It was assigned to this individual provider in the NPPES registry on July 16, 2008. The provider is also known as Colleen Elliott.
Where is Colleen Kniffin located?
Colleen Kniffin practices at 1035 116th Ave NE Overlake Hospital Medical Center, Bellevue, WA 98004. The listed phone number is (425) 688-5100.
What is Colleen Kniffin's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Colleen Kniffin enrolled in Medicare?
Yes. Colleen Kniffin 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 Colleen Kniffin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colleen Kniffin reassigns Medicare benefits to 2 organizations: Puget Sound Physicians PLLC (Bellevue, WA) and Public Hospital District No 4 King County Washington (Snoqualmie, 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 Colleen Kniffin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Colleen Kniffin accept?
Health plans from Ambetter Health list Colleen Kniffin 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 Colleen Kniffin affiliated with any hospitals?
According to CMS data, Colleen Kniffin is affiliated with Overlake Hospital Medical Center and Snoqualmie Valley Hospital.
When was this NPI record last updated?
The NPPES record for Colleen Kniffin was last updated on February 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Colleen Christina Kniffin, MD · NPI 1952565269
Emergency Medicine physician in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since July 16, 2008.
## Identity
- **NPI:** 1952565269 (Entity type: Individual)
- **Enumerated:** July 16, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD60471532 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1035 116TH AVE NE, OVERLAKE HOSPITAL MEDICAL CENTER, Bellevue, WA 98004
- **Phone:** (425) 688-5100
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Puget Sound Physicians PLLC (NPI 1801900501, Bellevue, WA); Public Hospital District No 4 King County Washington (NPI 1902846546, Snoqualmie, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2008
## Record status
- **NPPES last updated:** February 5, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1952565269) · Data from the CMS NPPES public registry.