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

John J. Mazzucco, MD, LLC

Organization Health Service Clinic/Center · NPI 1275721557

John J. Mazzucco, MD, LLC is a Health Service Clinic/Center in Waterbury, Connecticut. Licensed in Connecticut. Registered with an NPI since 2007.

Licensed in
CT
In the registry since
2007
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1211 W Main St
Waterbury, CT 06708-3106
Phone: (203) 757-1580
Fax: (203) 573-6090
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Health Service Clinic/Center (primary) Taxonomy 261QH0100X · Licence 031891 (CT)

Record details

NPI number1275721557
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Mazzucco — Manager · (203) 757-1580
NPI enumeratedOctober 11, 2007
Last updated in NPPESOctober 11, 2007
Mailing address1211 W Main St, Waterbury, CT 06708-3106

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