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

William J Parker, MD

Individual provider Family Medicine Physician · NPI 1598733511

William J Parker, MD is a Family Medicine Physician in Leominster, 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

165 Mill St
Leominster, MA 01453
Phone: (978) 466-3208
Fax: (978) 840-1680
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 51115 (MA)

Record details

NPI number1598733511
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 8, 2006
Last updated in NPPESFebruary 20, 2009
Mailing address630 Plantation St, Worcester, MA 01605

Other providers in Leominster