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

Mark A Sullivan, MD

Individual provider Internal Medicine Physician · NPI 1215036603

Mark A Sullivan, MD is an Internal Medicine Physician in Arlington, 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.

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Practice location Address checks out

37 Broadway Lahey Arlington
Arlington, MA 02474-5552
Phone: (781) 641-0100
Fax: (781) 744-7132
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 40783 (MA)

Record details

NPI number1215036603
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2006
Last updated in NPPESDecember 5, 2012
Mailing addressLahey Clinic, 41 Mall Road, Burlington, MA 01805-0001

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