Nelson A. Bonheim, MD
Gastroenterology Physician · Greenwich, CT
Nelson A. Bonheim, MD is a gastroenterology physician with a practice address in Greenwich, Connecticut, and NPI 1366514549, issued on Nov 14, 2006. Check the license (Connecticut 017080, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Nelson A. Bonheim
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 017080 CT
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Putnam Ave, Greenwich, CT 06830
- Phone
- (203) 863-2900
- Enumerated
- Nov 14, 2006
- Record last updated
- Sep 24, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (203) 863-2901
- Medicaid ID
- 1170802 CT
- Entity
- Type 1 · individual
Also registered at 500 W Putnam Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katie Atkinson, C-FNPFamily Nurse Practitioner1306079819
- Jennifer Barro, MDGastroenterology Physician1194841379
- Clifford Berken, M.D.Gastroenterology Physician1215951173
- Jessica Dennison, RNPsychiatric/Mental Health Nurse Practitioner1023778537
- Caroline Figgie, MDPediatric Endocrinology Physician1902366420
- Nancy Guberti, NUTRITIONISTNutritionist1265624241
Verify Nelson A. Bonheim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 017080Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gastroenterology Physician providers in Connecticut
There are 336 gastroenterology physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other gastroenterology physician records in Connecticut
- Alexander Abadir, MDNorwalk, CT1811429699
- Abera Abay, M.D.Norwich, CT1861489585
- Clara Abraham, MDNew Haven, CT1629139456
- Charles Adelmann, M.D.Norwalk, CT1861436511
- Anant Agarwalla, M.D.Wallingford, CT1326458589
- Badr Al Bawardy, MDNew Haven, CT1104111509
- Jamil Alexis, MDStamford, CT1164927968
- Rabab Oun Ali Anwar Ali, MBBSNew Haven, CT1124580949
- Pietro Andres, M.D.Stratford, CT1588607386
- Chioma Anjou, M.D.Torrington, CT1821358870
Common questions
What is Nelson A. Bonheim, MD's NPI number?
Nelson A. Bonheim, MD's National Provider Identifier (NPI) is 1366514549, issued on Nov 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nelson A. Bonheim, MD located?
The NPPES record lists a practice address at 500 W Putnam Ave, Greenwich, CT, 06830. Phone: (203) 863-2900. Providers update this record themselves, so call before visiting.
How can I verify Nelson A. Bonheim, MD's license?
NPPES lists Connecticut license number 017080, 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.