WILLIAM DAY BUCK JR. MD
NPI 1023060902
Family Medicine in Salina, KS
About William Day Buck Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM DAY BUCK JR. MD (NPI 1023060902) is an individual family medicine provider in Salina, Kansas, licensed in Kansas (0422602) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Day Buck Jr. Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Buck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salina, KS 67401
- Reassigned Medicare billing, Kansas enrollment
- 35 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 52
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 67401 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 31
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.
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 Buck's NPI number?
The NPI number for William Buck is 1023060902. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is William Buck located?
William Buck practices at 737 E Crawford St, Salina, KS 67401. The listed phone number is (785) 827-7261.
What is William Buck's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William Buck enrolled in Medicare?
Yes. William Buck is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Buck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Buck reassigns Medicare benefits to Mowery Clinic LLC (Salina, KS). 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 William Buck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Buck accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma list William Buck 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 William Buck was last updated on December 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.