DR. WILLIAM JAMES RITCHIE M.D.
NPI 1184627564
Anesthesiology in Kirkland, WA
About Dr. William James Ritchie M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM JAMES RITCHIE M.D. (NPI 1184627564) is an individual anesthesiology provider in Kirkland, Washington, licensed in Washington (MD60636225) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS, is affiliated with Evergreenhealth Monroe, and is a graduate of Other (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
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
Dr. William James Ritchie M.d. 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 William Ritchie 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
- 94 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 151 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Evergreenhealth Monroe
Acute Care Hospitals · Monroe, WAEvergreenhealth Medical Center
Acute Care Hospitals · Kirkland, WAOther Providers at the Same Location NPPES
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 William Ritchie's NPI number?
The NPI number for William Ritchie is 1184627564. It was assigned to this individual provider in the NPPES registry on May 31, 2005.
Where is William Ritchie located?
William Ritchie practices at 12040 NE 128th St # 69, Kirkland, WA 98034. The listed phone number is (425) 899-3455.
What is William Ritchie's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Ritchie enrolled in Medicare?
Yes. William Ritchie 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 William Ritchie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Ritchie reassigns Medicare benefits to 2 organizations: Matrix Anesthesia, Ps (Bellevue, WA) and Anesthesia Associates Of New Mexico P C (Albuquerque, NM). 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 William Ritchie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Ritchie affiliated with any hospitals?
According to CMS data, William Ritchie is affiliated with Evergreenhealth Monroe and Evergreenhealth Medical Center.
When was this NPI record last updated?
The NPPES record for William Ritchie was last updated on November 26, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. William James Ritchie, M.D. · NPI 1184627564
Anesthesiology physician in Kirkland, Washington. Individual provider, active in the CMS NPPES registry since May 31, 2005.
## Identity
- **NPI:** 1184627564 (Entity type: Individual)
- **Enumerated:** May 31, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD60636225 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 12040 NE 128TH ST # 69, Kirkland, WA 98034-3013
- **Phone:** (425) 899-3455
## 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): Matrix Anesthesia, Ps (NPI 1831146422, Bellevue, WA); Anesthesia Associates Of New Mexico P C (NPI 1912900754, Albuquerque, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1994
## Record status
- **NPPES last updated:** November 26, 2018
- **Other identifiers:** Medicaid 797813 (AZ); Medicaid 1184627564 (WA); Other 925207 (NM); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1184627564) · Data from the CMS NPPES public registry.