William Black, M.D.
Internal Medicine Physician · Somerville, MA
William Black, M.D. is an internal medicine physician with a practice address in Somerville, Massachusetts, and NPI 1780655860, issued on Jan 27, 2006. Check the license (Massachusetts 44271, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Black
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 44271 MA
Self-reported in NPPES; status is on the state search - Practice location
- 40 Holland St, Somerville, MA 02144
- Phone
- (617) 629-6000
- Enumerated
- Jan 27, 2006
- Entity
- Type 1 · individual
Also registered at 40 Holland St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hala Ali Ibrahim, MDPediatrics Physician1902469877
- Carole Allen, M.D.Pediatrics Physician1275518235
- Andrew Angel, M.D.Internal Medicine Physician1417927724
- Dolly Arjun, PA-CPediatrics Physician1376924738
- Jill Ashcraft, DPMFoot & Ankle Surgery Podiatrist1316205909
- Rachel Berger, M.D.Internal Medicine Physician1326019456
Verify William Black in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 44271Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
33 internal medicine physician records list a Somerville practice address
They are 33 of the 1,860 NPPES records with a Somerville practice address, and 7,865 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 33 in Somerville → All 7,865 in Massachusetts → Every provider in Somerville →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Zainab AbbasWorcester, MA1609028000
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Salah Abdelgadir, MDBoston, MA1891280954
- Mahmoud Abdelghany, M.D.Springfield, MA1134479629
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is William Black, M.D.'s NPI number?
William Black, M.D.'s National Provider Identifier (NPI) is 1780655860, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Black, M.D. located?
The NPPES record lists a practice address at 40 Holland St, Somerville, MA, 02144. Phone: (617) 629-6000. Providers update this record themselves, so call before visiting.
How can I verify William Black, M.D.'s license?
NPPES lists Massachusetts license number 44271, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.