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

Mark N Fiengo, DO

Individual provider Interventional Cardiology Physician · NPI 1245214220

Mark N Fiengo, DO is an Interventional Cardiology Physician in Waterford, 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?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

196 Pkwy S Ste 103
Waterford, CT 06385-1234
Phone: (860) 443-4383
Fax: (860) 443-3980
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 000281 (CT)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 00281 (CT)

Record details

NPI number1245214220
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 2, 2005
Last updated in NPPESMarch 10, 2020
Certification dateMarch 10, 2020
Mailing address164 Otrobando Ave, Ste B, Norwich, CT 06360-2116