NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John C Gross, M.D.

Ophthalmology Physician in Ashland, KY · enumerated 2006 · practices at Tri-State Ophthalmology Associates Psc.

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

National Provider Identifier

1245209550

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. John C Gross
Credential M.D.
Sex Male
Practice address 2841 Lexington Ave, Ashland, KY, 41101
Phone (606) 324-2451
Fax (606) 324-7123
Enumeration date Mar 17, 2006
Last updated in NPPES Jan 7, 2014

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 28089 (KY) 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
0160061 Medicaid OH -
64280894 Medicaid KY -
180021151 Other KY MEDICARE RAILROAD

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

How do I verify John Gross's NPI record?
Cross-check NPI 1245209550 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1245209550 active?
Yes, as of the latest NPPES snapshot, NPI 1245209550 is active (record last updated 2014-01-07).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-07.