Joseph William Viola, MD
Internal Medicine Physician · Brookline, MA
Joseph William Viola, MD is an internal medicine physician with a practice address in Brookline, Massachusetts, and NPI 1194715722, issued on Oct 25, 2005. Check the license (Massachusetts 36421, 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
- Joseph William Viola
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 36421 MA
Self-reported in NPPES; status is on the state search - Practice location
- 77 Pond Ave, Brookline, MA 02445
- Phone
- (617) 566-3900
- Enumerated
- Oct 25, 2005
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
Also registered at 77 Pond Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph William Viola in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 36421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57 internal medicine physician records list a practice address in Brookline
They are 57 of the 2,357 NPPES records with a practice address in Brookline, and 6,825 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 57 in Brookline → All 6,825 in Massachusetts → Every provider in Brookline →
Other internal medicine physician records in Massachusetts
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- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Taimur AbbasiBoston, MA1841673522
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Joseph William Viola, MD's NPI number?
Joseph William Viola, MD's National Provider Identifier (NPI) is 1194715722, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joseph William Viola, MD located?
The NPPES record lists a practice address at 77 Pond Ave, Brookline, MA, 02445. Phone: (617) 566-3900. Providers update this record themselves, so call before visiting.
How can I verify Joseph William Viola, MD's license?
NPPES lists Massachusetts license number 36421, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.