Gastroenterology Physician in Connecticut

Compiled from official public sources by the PlainDoctor editorial team.

278 providers - Page 6 of 6

The CMS National Plan and Provider Enumeration System currently lists 278 Gastroenterology Physician providers with a primary practice address in Connecticut, all registered under the Internal Medicine NUCC taxonomy branch. Each clinician on this roster selected Gastroenterology Physician as their primary taxonomy at NPI enrollment, a self-reported classification that is updated whenever the provider files a correction with CMS. The count excludes organizations (group practices, hospitals, clinics operate under separate NPIs) and excludes providers who chose a different primary specialty even if they practice Gastroenterology Physician part-time. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

At 278 enrolled providers, Gastroenterology Physician in Connecticut is a limited-supply market, that matters for search-radius decisions, because patients in Connecticut outside the largest metros often need to broaden to adjacent cities to find a local Gastroenterology Physician clinician. The directory below is paginated 50 providers at a time (6 pages total) and is sorted alphabetically by last name, so scanning for a specific practice usually goes faster than scrolling; on the provider detail page you'll find the full NPPES record including address, phone, credentials, and any published Medicare Part D prescribing activity for 2023.

Before contacting anyone on this list, verify the practice is still at the address shown, NPPES refreshes monthly, but providers who have relocated, retired, or changed employers may not have filed an NPI update yet. Important: PlainDoctor is a directory of publicly available CMS government data covering Gastroenterology Physician providers in Connecticut, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry, the Connecticut medical board, and, where relevant, the ABMS, AOA, or the specialty's primary certifying body before making any clinical decision. Nothing on this page substitutes for a conversation with a licensed clinician.

Which cities have the most Gastroenterology Physician in Connecticut

Provider concentration by primary practice city. Bars sized to New Haven = 100%.

New Haven
57
Hamden
19
Farmington
15
Hartford
14
Danbury
14
Edward Toffolon, M.D.
Gastroenterology Physician
New Britain, CT 06051
(860) 229-9688
Michelle Tong
Gastroenterology Physician
Torrington, CT 06790
(860) 496-0455
Renuka Umashanker, MD
Gastroenterology Physician
Hamden, CT 06518
(203) 281-4463
Brian Van Linda, MD
Gastroenterology Physician
Avon, CT 06001
(860) 674-8830
Rosalind Van Stolk, MD
Gastroenterology Physician
New Britain, CT 06051
(860) 229-9688
Benigno Varela
Gastroenterology Physician
Hamden, CT 06518
(203) 281-4463
Haleh Vaziri, MD
Gastroenterology Physician
Farmington, CT 06030
(860) 679-3238
Ronald Vender, MD
Gastroenterology Physician
Hamden, CT 06518
(203) 281-4463
Mark Versland, M.D.
Gastroenterology Physician
New Britain, CT 06051
(860) 229-9688
Gracia Viana Rodriguez, M.D.
Gastroenterology Physician
Bridgeport, CT 06610
(203) 384-3000
Stuart Waldstreicher, M.D
Gastroenterology Physician
Stamford, CT 06902
(203) 967-2100
Housein Wazaz, M.D.
Gastroenterology Physician
Meriden, CT 06451
(203) 237-2477
Jeffrey Weiser, MD
Gastroenterology Physician
Farmington, CT 06032
(860) 409-4567
Scott Weiss, M.D.
Gastroenterology Physician
Trumbull, CT 06611
(203) 459-4451
Thomas Whelan, M.D..
Gastroenterology Physician
Bethel, CT 06801
(203) 791-2221
Jonathan White, M.D.
Gastroenterology Physician
Meriden, CT 06451
(203) 886-0036
Jonathan Williamson, M.D.
Gastroenterology Physician
Hartford, CT 06106
(860) 246-2571
David Wolfsohn, M.D.
Gastroenterology Physician
New Haven, CT 06510
(203) 777-0304
George Wu, MD
Gastroenterology Physician
Farmington, CT 06030
(860) 679-3238
John Wysocki, MD
Gastroenterology Physician
South Windsor, CT 06074
(860) 644-4442
Karen Xiao, MD
Gastroenterology Physician
New Haven, CT 06510
(203) 688-4242
Joseph Yu, MD
Gastroenterology Physician
Branford, CT 06405
(203) 481-0315
Kirk Zachary, M.D.
Gastroenterology Physician
Norwalk, CT 06851
(203) 845-4835
Salam Zakko, MD
Gastroenterology Physician
Bristol, CT 06010
(860) 583-9252
Anthony Zaldonis, MD
Gastroenterology Physician
Avon, CT 06001
(860) 674-8830
Daniel Zanchetti, M.D.
Gastroenterology Physician
New Haven, CT 06510
(203) 777-0304
Ronald Zlotoff, M.D.
Gastroenterology Physician
Waterbury, CT 06708
(203) 755-4515
Felice Zwas, M.D.
Gastroenterology Physician
Greenwich, CT 06830
(203) 863-2900

Gastroenterology Physician in Other States

Top states for Gastroenterology Physician by CMS NPPES enrollment, use these to widen your search radius.

Compare Gastroenterology Physician vs another specialty โ†’

Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Each provider is identified by NPI. PlainDoctor does not rate or rank providers. Methodology ยท About

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 2026-05-20.