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

Dan S Tilles, MD

Individual provider Internal Medicine Physician · NPI 1912964321

Dan S Tilles, MD is an Internal Medicine Physician in Concord, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
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

86 Baker Ave Ext
Concord, MA 01742-2125
Phone: (978) 287-9300
Fax: (978) 287-9357
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 45946 (MA)

Record details

NPI number1912964321
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 28, 2006
Last updated in NPPESMay 26, 2011

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