Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Weaver, MD

Q: What is the NPI number for John Weaver?

The National Provider Identifier (NPI) for John Weaver is 1073513396, a Type 1 (individual) record in the CMS NPPES registry.

Anesthesiology Physician in Lancaster, OH · enumerated 2005.

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

National Provider Identifier

1073513396

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Registry record

Entity type Individual (Type 1)

Name John Weaver

Credential MD

Sex Male

Practice address 401 N Ewing St, Lancaster, OH, 43130

Phone (513) 672-3309

Fax (513) 672-3323

Enumeration date Jul 28, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 35081749 (OH) 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
2420928	Medicaid	OH	-

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 Weaver?

The National Provider Identifier (NPI) for John Weaver is 1073513396, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Weaver practice?

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

Other providers at this practice address

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