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

William C Siegel, MD

Individual provider Cardiovascular Disease Physician · NPI 1336120757

William C Siegel, MD is a Cardiovascular Disease Physician in Brockton, 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

110 Liberty St
Brockton, MA 02301
Phone: (508) 894-0400
Fax: (508) 941-0332
Show map & directions

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

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 50750 (MA)

Record details

NPI number1336120757
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 11, 2005
Last updated in NPPESFebruary 16, 2021
Certification dateFebruary 16, 2021

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