DR. WILLIAM S PIERCE DPM
NPI 1447464433
Podiatrist - Foot Surgery in West Seneca, NY
About Dr. William S Pierce Dpm NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM S PIERCE DPM (NPI 1447464433) is an individual foot surgery provider in West Seneca, New York, licensed in New York (N003337) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of California School Of Podiatric Medicine (1981).
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 S Pierce Dpm 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 William Pierce reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Buffalo, NY 14203
- Reassigned Medicare billing, New York enrollment
- 676 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
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.
Kaleida Health
Acute Care Hospitals · Buffalo, NYMedicare 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.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEST SENECA, NY 14224
WEST SENECA, NY 14224
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 Pierce's NPI number?
The NPI number for William Pierce is 1447464433. It was assigned to this individual provider in the NPPES registry on May 9, 2007.
Where is William Pierce located?
William Pierce practices at 4184 Seneca St Ste 203, West Seneca, NY 14224. The listed phone number is (716) 675-3555.
What is William Pierce's specialty?
The primary specialty registered for this NPI is Podiatrist, specializing in Foot Surgery, with taxonomy code 213ES0131X.
Is William Pierce enrolled in Medicare?
Yes. William Pierce 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 William Pierce's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Pierce reassigns Medicare benefits to Kaleida Health (Buffalo, NY). 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 Pierce's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Pierce affiliated with any hospitals?
According to CMS data, William Pierce is affiliated with Kaleida Health.
When was this NPI record last updated?
The NPPES record for William Pierce was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 S Pierce, DPM · NPI 1447464433
Foot Surgery provider in West Seneca, New York. Individual provider, active in the CMS NPPES registry since May 9, 2007.
## Identity
- **NPI:** 1447464433 (Entity type: Individual)
- **Enumerated:** May 9, 2007
- **Primary specialty:** Podiatrist - Foot Surgery · taxonomy 213ES0131X
- **State license:** N003337 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4184 SENECA ST, STE 203, West Seneca, NY 14224-3051
- **Phone:** (716) 675-3555 · **Fax:** (716) 675-3556
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Kaleida Health (NPI 1427870070, Buffalo, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** California School Of Podiatric Medicine, class of 1981
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN T87275 (NY); Medicaid 00908163 (NY); Other 00010257101 (NY); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1447464433) · Data from the CMS NPPES public registry.