Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John William Merling, MD

Q: What is the NPI number for John Merling?

The National Provider Identifier (NPI) for John Merling is 1457313843, a Type 1 (individual) record in the CMS NPPES registry.

Family Medicine Physician in Wilmington, OH · enumerated 2006 · practices at Wilmington Medical Associates, Inc..

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

National Provider Identifier

1457313843

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Registry record

Entity type Individual (Type 1)

Name Dr. John William Merling

Credential MD

Sex Male

Practice address 1184 W Locust St, Wilmington, OH, 45177

Phone (937) 382-1616

Fax (937) 382-7877

Enumeration date Apr 3, 2006

Last updated in NPPES Nov 1, 2020

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 35.057225 (OH) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 35057225 (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
0736065	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

Where does John Merling practice?

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

What is the NPI number for John Merling?

The National Provider Identifier (NPI) for John Merling is 1457313843, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-01.