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

Catherine O'Neill Buck, MD

Individual provider Pediatrics Physician · NPI 1437425402

Catherine O'Neill Buck, MD is a Pediatrics Physician in New Haven, Connecticut. Licensed in Connecticut, Rhode Island and Texas. Registered with an NPI since 2012.

Licensed in
CT, RI, TX
In the registry since
2012
Specialties on file
3
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

1 Park St
New Haven, CT 06504-8901
Phone: (401) 274-1122
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neonatal-Perinatal Medicine Physician (primary) Taxonomy 2080N0001X · Licence 62689 (CT)
Pediatrics Physician Taxonomy 208000000X · Licence MD15391 (RI)
Pediatrics Physician Taxonomy 208000000X · Licence Q0881 (TX)

Record details

NPI number1437425402
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2012
Last updated in NPPESApril 29, 2019

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