DR. KAREN G WILLIAMS DO, MPH
NPI 1821436072
Hospitalist in Seattle, WA
About Dr. Karen G Williams Do, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAREN G WILLIAMS DO, MPH (NPI 1821436072) is an individual hospitalist provider in Seattle, Washington, licensed in Washington (DO.OP.61193845) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center / Cherry Hill, and maintains a secondary practice location in Fort Defiance.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Karen G Williams Do, Mph 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.
Areas of Expertise CMS Part B claims 6
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.
Swedish Medical Center / Cherry Hill
Acute Care Hospitals · Seattle, WASwedish Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98122 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SEATTLE, WA 98122
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 Karen Williams's NPI number?
The NPI number for Karen Williams is 1821436072. It was assigned to this individual provider in the NPPES registry on June 10, 2013.
Where is Karen Williams located?
Karen Williams practices at 747 Broadway, Seattle, WA 98122. The listed phone number is (206) 215-2520.
What is Karen Williams's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Karen Williams enrolled in Medicare?
Yes. Karen Williams 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.
What insurance does Karen Williams accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Karen Williams 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 Karen Williams affiliated with any hospitals?
According to CMS data, Karen Williams is affiliated with Swedish Medical Center / Cherry Hill and Swedish Medical Center.
When was this NPI record last updated?
The NPPES record for Karen Williams was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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.
