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

Dr. William Joseph Dwyer, MD

Individual provider Neonatal-Perinatal Medicine Physician · NPI 1336197847

Dr. William Joseph Dwyer, MD is a Neonatal-Perinatal Medicine Physician in Boston, Massachusetts. Licensed in Massachusetts and Texas. Registered with an NPI since 2006.

Licensed in
MA, TX
In the registry since
2006
Specialties on file
2
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 Fruit St Neonatology Unit FND442 Massachusetts General Hospital
Boston, MA 02114-2696
Phone: (617) 726-9040
Fax: (617) 726-9346
Show map & directions

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

Specialties & licences

Neonatal-Perinatal Medicine Physician (primary) Taxonomy 2080N0001X · Licence 208982 (MA)
Neonatal-Perinatal Medicine Physician Taxonomy 2080N0001X · Licence J9007 (TX)

Record details

NPI number1336197847
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESJuly 8, 2007
Mailing address201 Turnpike St, North Andover, MA 01845-5005

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