Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John Albert Leach, PA

Q: What is the NPI number for John Leach?

The National Provider Identifier (NPI) for John Leach is 1972692036, a Type 1 (individual) record in the CMS NPPES registry.

Physician Assistant in West Haven, CT · enumerated 2006.

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

National Provider Identifier

1972692036

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Registry record

Entity type Individual (Type 1)

Name Mr. John Albert Leach

Credential PA

Sex Male

Practice address West Haven Veteran'S Hospital, 950 Campbell Avenue, West Haven, CT, 06516

Phone (203) 932-5711

Fax (203) 867-7600

Enumeration date Oct 12, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 000327 (CT) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

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

What is the NPI number for John Leach?

The National Provider Identifier (NPI) for John Leach is 1972692036, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Leach practice?

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

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