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

Karen S Guadagnini, MD

Individual provider Internal Medicine Physician · NPI 1316934185

Karen S Guadagnini, MD is an Internal Medicine Physician in Bristol, Connecticut. Licensed in Connecticut. Registered with an NPI since 2005.

Licensed in
CT
In the registry since
2005
Specialties on file
2
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

102 N St
Bristol, CT 06010-4190 Not confirmed with CMS for 15 years — call before visiting
Phone: (860) 314-2082
Fax: (860) 314-8133
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 034917 (CT)
Addiction Medicine (Internal Medicine) Physician Taxonomy 207RA0401X · Licence 034917 (CT)

Record details

NPI number1316934185
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2005
Last updated in NPPESFebruary 22, 2011

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients100
Services billed 341 a service is one billed item, such as a visit, a test or a procedure
Average patient age59

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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