NPI Portal NPI Lookup & Verification

James Leyhane

James Leyhane is a Internal Medicine Physician provider (Internal Medicine) practicing in Castleton, NY, registered in the NPPES registry with NPI 1255420634 since 2006.

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NPI 1255420634
Entity type Individual (Type 1)
Name James Leyhane
Sex Male
Practice address 81 MILLER RD, SUITE 800, Castleton, NY, 12033
Phone 5184772167
Enumeration date 2006-10-12
Last updated in NPPES 2007-12-07

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207R00000X Internal Medicine Physician Primary 112437 NY

Other identifiers

Identifier Type State Issuer
00367097 Medicaid NY
Copy-ready billing details
Provider: James Leyhane
NPI: 1255420634
Taxonomy: 207R00000X (Internal Medicine Physician)
Address: 81 MILLER RD, SUITE 800, Castleton, NY, 12033

Other providers at this practice address

NPI Name Type Specialty Location
1245310267 Deborah Ciprioni Individual Physical Therapist Castleton, NY
1396823589 Jason Brown Individual Chiropractor Castleton, NY
1679639181 Patricia Phillips Individual Clinical Social Worker Castleton, NY
1700079662 Nathan Gardner Individual Physician Assistant Castleton, NY
1245469220 Augustine Barranca Individual Pharmacist Castleton, NY
1689804346 Princeton Advanced Technologies LLC Organization Pharmacy Castleton, NY
1891026308 Coby Scaccia Individual Physical Therapist Castleton, NY
1760754451 Community Care Physicians, PC Organization Family Medicine Physician Castleton, NY

Verify this record

Cross-check NPI 1255420634 against the authoritative CMS record: view James Leyhane on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify James Leyhane's NPI record?
Cross-check NPI 1255420634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1255420634 active?
Yes — as of the latest NPPES snapshot, NPI 1255420634 is active (record last updated 2007-12-07).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-12-07.