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

Dr. Nancy B. Holyst, MD

Individual provider Pediatrics Physician · NPI 1861428658

Dr. Nancy B. Holyst, MD is a Pediatrics Physician in Plainville, Connecticut. Licensed in Connecticut. Registered with an NPI since 2006.

Licensed in
CT
In the registry since
2006
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

21 Cooke St
Plainville, CT 06062-1801
Phone: (860) 747-9400
Fax: (860) 747-9499
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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 031851 (CT)

Record details

NPI number1861428658
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2006
Last updated in NPPESJuly 8, 2007
Mailing addressPo Box 7057, 21 Cooke Street, Plainville, CT 06062-7057

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