John O'neill MD
About this NPIWhat this record shows.
NPI 1346238516 is registered to John O'neill MD, a Ophthalmology Physician practising at 2 Wisconsin Cir, Suite 200 in Chevy Chase, Maryland. Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. John O'neill MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans John O'neill MD accepts. To confirm in-network status with your specific health plan, contact John O'neill MD directly at (301) 215-7100.
Frequently asked
Yes. NPI 1346238516 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (301) 215-7100.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. John O'neill MD is a Type-1 individual NPI.