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

William Guinan, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1144317520

William Guinan, MD is an Obstetrics & Gynecology Physician in Manchester, 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

388 W Center St
Manchester, CT 06040
Phone: (860) 649-1120
Fax: (860) 645-8541
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 028847 (CT)

Record details

NPI number1144317520
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 6, 2006
Last updated in NPPESOctober 27, 2011
Mailing address388 West Center St, Manchester Obgyn Assoc, Manchester, CT 06040

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