Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John G Grauer, MD

Q: What is the NPI number for John Grauer?

The National Provider Identifier (NPI) for John Grauer is 1528002912, a Type 1 (individual) record in the CMS NPPES registry.

Obstetrics & Gynecology Physician in Newark, OH · enumerated 2006 · practices at Licking Memorial Professional Corp..

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

National Provider Identifier

1528002912

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Registry record

Entity type Individual (Type 1)

Name Mr. John G Grauer

Credential MD

Sex Male

Practice address 15 Messimer Dr, Newark, OH, 43055

Phone (740) 348-4692

Fax (740) 348-1974

Enumeration date Jun 15, 2006

Last updated in NPPES Jul 24, 2008

Taxonomy & licenses

174400000X Specialist Other Service Providers Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 35054625 (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
0742898	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 Grauer?

The National Provider Identifier (NPI) for John Grauer is 1528002912, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Grauer practice?

The practice location on file with NPPES is in Newark, 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 2008-07-24.