William Zinn
Geriatric Medicine (Internal Medicine) Physician · Cambridge, MA
William Zinn is a geriatric medicine (internal medicine) physician with a practice address in Cambridge, Massachusetts, and NPI 1194887414, issued on Dec 14, 2006. Check the license (Massachusetts 43447, 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 Zinn
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 43447 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1493 Cambridge St, Cambridge, MA 02139
- Phone
- (617) 665-1068
- Enumerated
- Dec 14, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1493 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Abbas, MDStudent in an Organized Health Care Education/Training Program1225728025
- Nawyaab Abbasi, DOStudent in an Organized Health Care Education/Training Program1215875364
- Flannery AbbeySocial Worker1508604273
- Rana AbdallahSocial Worker1689220204
- Khaleel Abdul-Jabbaar, PT, DPTOrthopedic Physical Therapist1780295717
- Adri Abou-Bakr, MDStudent in an Organized Health Care Education/Training Program1770421844
Verify William Zinn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 43447Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Geriatric Medicine (Internal Medicine) Physician providers in Massachusetts
There are 225 geriatric medicine (internal medicine) physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other geriatric medicine (internal medicine) physician records in Massachusetts
- Alan Abrams, M.D.Cambridge, MA1619082674
- Hawa Abu, MDWorcester, MA1104441229
- Robert AchindibaFramingham, MA1245313410
- Jokha Ahmed, MDLowell, MA1306369749
- Ceyda AkartunaBoston, MA1306454350
- Nadia Ali, M.DRoslindale, MA1760791347
- Sameera Ali, M.D.Worcester, MA1760703409
- John Anderson, MDCambridge, MA1568462620
- Marie Francesca Ansay, MDBoston, MA1891480414
- Hassan Arif, MDRoslindale, MA1376775130
Common questions
What is William Zinn's NPI number?
William Zinn's National Provider Identifier (NPI) is 1194887414, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Zinn located?
The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (617) 665-1068. Providers update this record themselves, so call before visiting.
How can I verify William Zinn's license?
NPPES lists Massachusetts license number 43447, 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.