NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Kenneth M Gainer, MD

Ophthalmology Physician in Martins Ferry, OH · enumerated 2007.

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

National Provider Identifier

1851445985

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Registry record

Entity type Individual (Type 1)
Name Kenneth M Gainer
Credential MD
Sex Male
Practice address Martins Ferry, OH, 43935
Enumeration date Jan 23, 2007
Last updated in NPPES Oct 30, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 3584204 (OH) Primary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 20425 (WV) Secondary
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
2524209 Medicaid OH -
10439701 Other OH CAQH
2003963000 Medicaid WV -

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.

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Frequently asked questions

Is NPI 1851445985 active?
Yes, as of the latest NPPES snapshot, NPI 1851445985 is active (record last updated 2007-10-30).
How do I verify Kenneth Gainer's NPI record?
Cross-check NPI 1851445985 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-30.