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
Mailing address147 Milk St, Provider Enrollment - 9th Floor, Boston, MA 02109-4806

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