WILLIAM L BLACK M.D.
NPI 1780655860
Internal Medicine - Endocrinology, Diabetes & Metabolism in Somerville, MA
About William L Black M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM L BLACK M.D. (NPI 1780655860) is an individual endocrinology, diabetes & metabolism provider in Somerville, Massachusetts, licensed in Massachusetts (44271) and active in the NPI registry since January 2006.
NPPES Registry Identity
Specialties & Licenses 2
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Other Identifiers 4
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Black's NPI number?
The NPI number for William Black is 1780655860. It was assigned to this individual provider in the NPPES registry on January 27, 2006.
Where is William Black located?
William Black practices at 40 Holland St Internal Medicine, Somerville, MA 02144. The listed phone number is (617) 629-6000.
What is William Black's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
When was this NPI record last updated?
The NPPES record for William Black was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
