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

Dr. John L Sullivan, MD

Individual provider Pediatric Allergy/Immunology Physician · NPI 1821072547

Dr. John L Sullivan, MD is a Pediatric Allergy/Immunology Physician in Worcester, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2005.

Licensed in
MA
In the registry since
2005
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

55 Lake Ave N Dept OF Pediatric Allergy & Immunology
Worcester, MA 01655-0002
Phone: (508) 856-1572
Fax: (508) 856-5004
Show map & directions

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

Specialties & licences

Pediatric Allergy/Immunology Physician (primary) Taxonomy 2080P0201X · Licence 42650 (MA)

Record details

NPI number1821072547
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 6, 2005
Last updated in NPPESNovember 9, 2020
Certification dateNovember 9, 2020
Mailing addressPo Box 415348, Boston, MA 02241-0001