Dr. Dennis O'brien MD
About this NPIWhat this record shows.
NPI 1376196311 is registered to Dr. Dennis O'brien MD, a Pediatrics practising at 900 Ridgebury Rd in Ridgefield, Connecticut. Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21. Dr. Dennis O'brien MD has been enumerated in the National Provider Identifier (NPI) registry since 2019.
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 Dr. Dennis O'brien MD accepts. To confirm in-network status with your specific health plan, contact Dr. Dennis O'brien MD directly at (203) 791-6466.
Frequently asked
Yes. NPI 1376196311 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21.
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 (203) 791-6466.
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. Dr. Dennis O'brien MD is a Type-1 individual NPI.