MARY MARGARET FARNHAM ARNP
NPI 1821206418
Registered Nurse in Bellevue, WA
About Mary Margaret Farnham Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY MARGARET FARNHAM ARNP (NPI 1821206418) is an individual registered nurse in Bellevue, Washington, licensed in Washington (AP60115689) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 3
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
Mary Margaret Farnham Arnp 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 Mary Farnham 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
- 9 clinicians in this Medicare group
Bellevue, WA 98004
- Reassigned Medicare billing, Washington enrollment
- 566 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 5
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.
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.
Reported Quality Measures
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.
BELLEVUE, WA 98004
BELLEVUE, WA 98004
BELLEVUE, WA 98004
BELLEVUE, WA 98004
BELLEVUE, WA 98004
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 Mary Farnham's NPI number?
The NPI number for Mary Farnham is 1821206418. It was assigned to this individual provider in the NPPES registry on May 18, 2007.
Where is Mary Farnham located?
Mary Farnham practices at 1135 116th Ave NE Suite 305, Bellevue, WA 98004. The listed phone number is (425) 453-1772.
What is Mary Farnham's specialty?
The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.
Is Mary Farnham enrolled in Medicare?
Yes. Mary Farnham 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 Mary Farnham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Farnham reassigns Medicare benefits to 2 organizations: Lake Washington Vascular PLLC (Bellevue, WA) and Overlake Medical Clinics, LLC (Bellevue, 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 Mary Farnham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Farnham accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mary Farnham 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 Mary Farnham was last updated on February 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.
# Mary Margaret Farnham, ARNP · NPI 1821206418
Registered Nurse provider in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since May 18, 2007.
## Identity
- **NPI:** 1821206418 (Entity type: Individual)
- **Enumerated:** May 18, 2007
- **Primary specialty:** Registered Nurse · taxonomy 163W00000X
- **State license:** AP60115689 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1135 116TH AVE NE, SUITE 305, Bellevue, WA 98004-4623
- **Phone:** (425) 453-1772
## 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): Lake Washington Vascular PLLC (NPI 1942292875, Bellevue, WA); Overlake Medical Clinics, LLC (NPI 1801828421, Bellevue, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** February 25, 2015
---
Source: [NPI Profile](https://npiprofile.com/npi/1821206418) · Data from the CMS NPPES public registry.