DR. L SLOANE WINKES M.D.
NPI 1497720304
Family Medicine in Mount Vernon, WA
About Dr. L Sloane Winkes M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. L SLOANE WINKES M.D. (NPI 1497720304) is an individual family medicine provider in Mount Vernon, Washington, licensed in Washington (MD00039716) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and is a graduate of Medical College Of Pennsylvania (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Dr. L Sloane Winkes 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 Reassignment
Medicare enrollment records show L Winkes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Vernon, WA 98274
- Reassigned Medicare billing, Washington enrollment
- 463 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 17
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Skagit Valley Hospital
Acute Care Hospitals · Mount Vernon, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98274 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
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 L Winkes's NPI number?
The NPI number for L Winkes is 1497720304. It was assigned to this individual provider in the NPPES registry on February 22, 2006.
Where is L Winkes located?
L Winkes practices at 2116 East Section Street, Mount Vernon, WA 98274. The listed phone number is (360) 428-1700.
What is L Winkes's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is L Winkes enrolled in Medicare?
Yes. L Winkes 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 organization bills Medicare for L Winkes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), L Winkes reassigns Medicare benefits to Public Hospital Dist No 1 Skagit (Mount Vernon, WA). The 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 L Winkes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does L Winkes accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list L Winkes 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 L Winkes affiliated with any hospitals?
According to CMS data, L Winkes is affiliated with Skagit Valley Hospital.
When was this NPI record last updated?
The NPPES record for L Winkes was last updated on June 4, 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.