Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Leddy, MD

Q: What is the NPI number for John Leddy?

The National Provider Identifier (NPI) for John Leddy is 1043286651, a Type 1 (individual) record in the CMS NPPES registry.

Sports Medicine (Internal Medicine) Physician in Buffalo, NY · enumerated 2006 · practices at University Orthopaedic Services Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043286651

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Registry record

Entity type Individual (Type 1)

Name John Leddy

Credential MD

Sex Male

Practice address 160 Farber Hall, 3435 Mins Street, Buffalo, NY, 14214

Phone (716) 829-3670

Enumeration date Feb 23, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207RS0010X Sports Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 174724 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01132250	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Leddy practice?

The practice location on file with NPPES is in Buffalo, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Leddy?

The National Provider Identifier (NPI) for John Leddy is 1043286651, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Gregory Burkhard Physician Assistant · Buffalo, NY NPI 1952371478 Robert Smolinski Orthopaedic Surgery Physician · Buffalo, NY NPI 1619949963 Jody Snyder Orthopaedic Surgery Physician · Buffalo, NY NPI 1144292400 Gurinder Rai Family Medicine Physician · Buffalo, NY NPI 1508839721 Scott Dinse Physical Therapist · Buffalo, NY NPI 1588637375 Miriam Inhelder Physician Assistant · Buffalo, NY NPI 1790899326 University Orthopaedic Services Inc. Orthopaedic Surgery Physician · Buffalo, NY NPI 1396986501 Tara Richards Physician Assistant · Buffalo, NY NPI 1083844302

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.