DR. WILLIAM E CAYLEY JR. MD MDIV
NPI 1053340067
Family Medicine in Eau Claire, WI
About Dr. William E Cayley Jr. Md Mdiv NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM E CAYLEY JR. MD MDIV (NPI 1053340067) is an individual family medicine provider in Eau Claire, Wisconsin, licensed in Wisconsin (39025-20) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Oakleaf Surgical Hospital, and is a graduate of Medical College Of Wisconsin (1996).
NPPES Registry Identity
Specialties & Licenses
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. William E Cayley Jr. Md Mdiv 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 15
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.
Oakleaf Surgical Hospital
Acute Care Hospitals · Altoona, WIMayo Clinic Health System Oakridge
Critical Access Hospitals · Osseo, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54701 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.
Referred Medical Equipment & Supplies CMS DME claims 9
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.
EAU CLAIRE, WI 54701
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 Cayley's NPI number?
The NPI number for William Cayley is 1053340067. It was assigned to this individual provider in the NPPES registry on July 2, 2006.
Where is William Cayley located?
William Cayley practices at 3802 Oakwood Mall Dr, Eau Claire, WI 54701. The listed phone number is (715) 839-9280.
What is William Cayley's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William Cayley enrolled in Medicare?
Yes. William Cayley 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 William Cayley accept?
Health plans from Anthem Blue Cross and Blue Shield, HealthPartners, Medica, Quartz and Security Health Plan list William Cayley 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 William Cayley affiliated with any hospitals?
According to CMS data, William Cayley is affiliated with Oakleaf Surgical Hospital and Mayo Clinic Health System Oakridge.
When was this NPI record last updated?
The NPPES record for William Cayley was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.