DR. JOHN A LEONE D.O.
NPI 1871558825
Internal Medicine in Williamsville, NY
About Dr. John A Leone D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN A LEONE D.O. (NPI 1871558825) is an individual internal medicine provider in Williamsville, New York, licensed in New York (177161) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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. John A Leone D.o. 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 8
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kaleida Health
Acute Care Hospitals · Buffalo, NYSisters Of Charity Hospital
Acute Care Hospitals · Buffalo, NYKenmore Mercy Hospital
Acute Care Hospitals · Kenmore, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14221 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 4
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 16
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 John Leone's NPI number?
The NPI number for John Leone is 1871558825. It was assigned to this individual provider in the NPPES registry on April 20, 2006.
Where is John Leone located?
John Leone practices at 61 Maple Rd, Williamsville, NY 14221. The listed phone number is (716) 565-1234.
What is John Leone's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Leone enrolled in Medicare?
Yes. John Leone 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.
Is John Leone affiliated with any hospitals?
According to CMS data, John Leone is affiliated with Kaleida Health, Sisters Of Charity Hospital and Kenmore Mercy Hospital.
When was this NPI record last updated?
The NPPES record for John Leone was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
