John A. Leone, D.O.
Internal Medicine Physician · Williamsville, NY
John A. Leone, D.O. is an internal medicine physician with a practice address in Williamsville, New York, and NPI 1871558825, issued on Apr 20, 2006. Check the license (New York 177161, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John A. Leone
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 177161 NY
Self-reported in NPPES; status is on the state search - Practice location
- 61 Maple RD, Williamsville, NY 14221
- Phone
- (716) 565-1234
- Enumerated
- Apr 20, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (716) 565-1246
- Medicare enrollment
- Enrolled (PECOS I20101006000154); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 1987
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 61 Maple RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erika Brown, RPAPhysician Assistant1811944820
- Renee Crooks, PAPhysician Assistant1851771778
- Victoria Grudzinski, PA-CMedical Physician Assistant1124330048
- Patricia Hoffarth, FNPAdult Health Nurse Practitioner1134132970
- Adam Kroe, MDFamily Medicine Physician1669039236
- Rachel Liberati, FNPFamily Nurse Practitioner1659669398
Verify John A. Leone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 177161Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,672 Medicare Part D claims for 606 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 452 claims were for opioids.
Most prescribed
- Levothyroxine Sodium325 claims
- Amlodipine Besylate300 claims
- Hydrocodone-Acetaminophen297 claims
- Rosuvastatin Calcium272 claims
- Atorvastatin Calcium260 claims
- Losartan Potassium222 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,277.82
59 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Family Care Physician, P.C.Williamsville, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John A. Leone among 12,067 internal medicine physician records in New York
John A. Leone, D.O. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1987 · median 2002 among the 7,221 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 internal medicine physician records list a practice address in Williamsville
They are 64 of the 3,530 NPPES records with a practice address in Williamsville, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Williamsville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- George Burnett, MDWilliamsville, NY 142211679559934
- Jeffrey Burnett, DOWilliamsville, NY 142211346226271
- Lynn Cieslak, M.D.Williamsville, NY 142211518951011
- Peter Elkin, M.D.Williamsville, NY 142211568432656
- Shuman Hua, M.D.Williamsville, NY 142211245219229
- Bonnie McMichael, M.D.Williamsville, NY 142211881692267
- Larisa Meras, M.D.Buffalo, NY 142211962474262
- Margaret Mitchell, M.D.Williamsville, NY 142211477551331
Common questions
What is John A. Leone, D.O.'s NPI number?
John A. Leone, D.O.'s National Provider Identifier (NPI) is 1871558825, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John A. Leone, D.O. located?
The NPPES record lists a practice address at 61 Maple RD, Williamsville, NY, 14221. Phone: (716) 565-1234. Providers update this record themselves, so call before visiting.
How can I verify John A. Leone, D.O.'s license?
NPPES lists New York license number 177161, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John A. Leone, D.O. prescribe under Medicare Part D?
In 2024, John A. Leone, D.O. had 7,672 Medicare Part D claims for 606 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.