Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Dennis O'Brien, MD

Individual provider Pediatrics Physician · NPI 1376196311

Dr. Dennis O'Brien, MD is a Pediatrics Physician in Ridgefield, Connecticut. Licensed in Illinois. Registered with an NPI since 2019.

Licensed in
IL
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

900 Ridgebury Rd
Ridgefield, CT 06877-1058
Phone: (203) 791-6466
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 036.118812 (IL)

Record details

NPI number1376196311
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 18, 2019
Last updated in NPPESJuly 18, 2019

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