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