John Defrance, M.D.
Surgery Physician · Danbury, CT
John Defrance, M.D. is a surgery physician with a practice address in Danbury, Connecticut, and NPI 1679515381, issued on Jun 10, 2006. Check the license (Connecticut 017831, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Defrance
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 017831 CT
Self-reported in NPPES; status is on the state search - Practice location
- 27 Hospital Ave, Danbury, CT 06810
- Phone
- (203) 797-1811
- Enumerated
- Jun 10, 2006
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
Also registered at 27 Hospital Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Applebee, DCChiropractor1497920045
- Madhuri Bakhru, M.D.Obstetrics & Gynecology Physician1508801309
- William Beacher, PSY.D.Clinical Psychologist1619042546
- David Copen, M.D.Cardiovascular Disease Physician1871529974
- Samuel Felder, M.D.Cardiovascular Disease Physician1255367041
- Victoria Flood, APRNFamily Nurse Practitioner1982560900
Verify John Defrance in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 017831Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Surgery Physician providers in Connecticut
There are 360 surgery physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other surgery physician records in Connecticut
- Joseph Aferzon, M.D.Portland, CT1316960594
- Sultan Ahamed, M.D.Mystic, CT1083722383
- Nita Ahuja, M.D.New Haven, CT1093779308
- Caterina Aiello, DOWaterbury, CT1922669522
- Olayemi Ajayi-Lamanna, M.D.Stafford Springs, CT1629455654
- Michael Ajemian, MDWaterbury, CT1699702357
- Marwan Al Aoudi, MBB.CHMeriden, CT1104322700
- Brittany Al-Atrache, DOPutnam, CT1578192332
- Aurangzeb Ali, M.D.Meriden, CT1063464261
- Najib Allabadi, MDBridgeport, CT1538692256
Common questions
What is John Defrance, M.D.'s NPI number?
John Defrance, M.D.'s National Provider Identifier (NPI) is 1679515381, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Defrance, M.D. located?
The NPPES record lists a practice address at 27 Hospital Ave, Danbury, CT, 06810. Phone: (203) 797-1811. Providers update this record themselves, so call before visiting.
How can I verify John Defrance, M.D.'s license?
NPPES lists Connecticut license number 017831, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. 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.