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

Dr. Mary Theresa Bessesen, MD

Individual provider Infectious Disease Physician · NPI 1235160672

Dr. Mary Theresa Bessesen, MD is an Infectious Disease Physician in Denver, Colorado. Licensed in Colorado. Registered with an NPI since 2006.

Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1055 Clermont St Infectious Diseases (111L)
Denver, CO 80220-3808
Phone: (303) 393-2837
Show map & directions

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

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 25940 (CO)

Record details

NPI number1235160672
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 5, 2006
Last updated in NPPESJuly 8, 2007

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