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

Steven Scott McCallister, MD

Individual provider Infectious Disease Physician · NPI 1114189651

Steven Scott McCallister, MD is an Infectious Disease Physician in Watertown, Massachusetts. Practices as a sole proprietor. Licensed in Connecticut.

Licensed in
CT
In the registry since
2008
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

134 Coolidge Ave
Watertown, MA 02472-2815
Phone: (617) 779-5514
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 039164 (CT)

Record details

NPI number1114189651
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 26, 2008
Last updated in NPPESJune 26, 2008
Mailing address5 Walnut St, Lexington, MA 02421-8219