Gastroenterologists in Madison, WI

  • Gastroenterology
  • Madison, Wisconsin
Gastroenterologists
46
Linked to a hospital or group
41
Hospitals with a gastroenterologist
13
Medical groups with a gastroenterologist
7
Practice at a hospital
40

There are 46 gastroenterologists in Madison. UW Health has the most, 31, and University Hospital has the most affiliated gastroenterologists, 31. 33% finished medical school 30 or more years ago.

Find work emails and mobile numbers for all 46 Madison gastroenterologists

Validated work emails and mobile numbers for Madison gastroenterologists, found through healthcare waterfall enrichment, with a free Dmand AI account.

View contacts for free

Madison gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a Madison practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.

Filter this list with a free account

Sort and filter all 46 Madison gastroenterologists by hospital, medical group, the EHR they use and Medicare volume in Dmand AI.

Filter in Dmand AI
Madison gastroenterologists, A to Z
GastroenterologistHospitalsMedical groupsEmail and phone
Michael L. Allan, MDNPI 15583008225 hospitals1 groupContacts
Kerstin Eide Austin, MDNPI 14970130232 hospitals1 groupContacts
Mark E. Benson, MDNPI 11149509872 hospitals1 groupContacts
Antonio Bosch, MDNPI 12957436562 hospitals1 groupContacts
Armando Bosch, MDNPI 16699327292 hospitals2 groupsContacts
Siobhan M. Byrne, MDNPI 14179158362 hospitals1 groupContacts
Freddy Caldera Jr., DONPI 12555945373 hospitals1 groupContacts
Matthew Winston Caldis, MD, MSNPI 19224610292 hospitals1 groupContacts
Rodrigo A. Castillo, MDNPI 18110073052 hospitals2 groupsContacts
Abigail M. Christiansen, MDNPI 14270032271 hospital1 groupContacts
Geoffrey Khang Dang-Vu, MDNPI 15486482804 hospitals1 groupContacts
Eric A. Gaumnitz, MDNPI 13563189431 hospital1 groupContacts
Annette R. Glasser, CNPNPI 18513523631 hospital1 groupContacts
Jason E. Gonzaga, MDNPI 17100264305 hospitals2 groupsContacts
Deepak V. Gopal, MDNPI 15189110643 hospitals1 groupContacts
Gary R. Griglione, MDNPI 10139312032 hospitals1 groupContacts
Ian C. Grimes, MDNPI 12757371652 hospitals1 groupContacts
Louis Y. Korman, MDNPI 1447229968-1 groupContacts
Alexander K. Larson, MDNPI 11243493374 hospitals1 groupContacts
Alexander S. Lee, MDNPI 18113510424 hospitals2 groupsContacts
Christopher Lindholm, MDNPI 13366714372 hospitals1 groupContacts
Abby Renee Lochmann-Bailkey, MDNPI 13668868063 hospitals2 groupsContacts
Luis D. Lomeli, MDNPI 18516862812 hospitals1 groupContacts
Megan K. LutzNPI 13062328632 hospitals1 groupContacts
Bryan L. Magenheim, MDNPI 11240941562 hospitals1 groupContacts
Alexandru I. Musat, MDNPI 1487621074--Contacts
Praveena Narayanan, MDNPI 15487980773 hospitals2 groupsContacts
Vinay L. Patel, MDNPI 16395837501 hospital1 groupContacts
Patrick R. Pfau, MDNPI 13462017952 hospitals1 groupContacts
Paulina Phillips, MDNPI 16990638835 hospitals1 groupContacts
Mark Reichelderfer, MDNPI 16997365122 hospitals1 groupContacts
Sumona Saha, MDNPI 17202046052 hospitals1 groupContacts
Mansoor Shariff, MDNPI 13160553461 hospital1 groupContacts
Anurag Soni, MDNPI 12159248162 hospitals1 groupContacts
Andrew R. Spiel, MDNPI 15889079922 hospitals1 groupContacts
Jason R. Stangl, MDNPI 13260933862 hospitals1 groupContacts
Peter M. Stanko, MDNPI 19129328231 hospital2 groupsContacts
Lisa Lynn Strate, MD, MPHNPI 15684090922 hospitals1 groupContacts
Arnold Wald, MDNPI 10634884192 hospitals1 groupContacts
Andrew Joseph Walker, MDNPI 16494826054 hospitals1 groupContacts
Naree K. Whang, MDNPI 12050606134 hospitals1 groupContacts
John Byron Williams, MDNPI 12655164212 hospitals1 groupContacts

Showing 1 to 10 of 42 Madison gastroenterologists

The list shows the 42 gastroenterologists with a public profile. The other 4 are counted in the total and searchable with a free account.

Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data

For health IT teams

Find Madison gastroenterologists by the EHR they use

Dmand AI has the EHR for 46 of 46 Madison gastroenterologists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.

UW Health has the most gastroenterologists in Madison, with 31

SSM Health Dean Medical Group is second with 9, and Reedsburg Area Medical Center third with 2. Counts are gastroenterologists with a Wisconsin address linked to each group.

Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data

University Hospital has the most affiliated gastroenterologists in Madison, with 31

UnityPoint Health - Meriter is second with 26, and SSM Health St. Mary's Hospital - Madison third with 9. Madison gastroenterologists are affiliated with 13 hospitals in all.

Hospitals with the most gastroenterologists in Madison
#HospitalHealth systemGastroenterologists
1University HospitalMadisonUniversity of Wisconsin Hospitals and Clinics Authority31
2UnityPoint Health - MeriterMadisonUnityPoint Health26
3SSM Health St. Mary's Hospital - MadisonMadisonSSM Health Care9
4SSM Health St. Clare Hospital - BarabooBarabooSSM Health Care7
5SSM Health St. Mary's Hospital - JanesvilleJanesvilleSSM Health Care7
6Stoughton HospitalStoughtonStoughton Hospital4
7Prairie Ridge Health HospitalColumbusPrairie Ridge Health3
8Upland Hills HealthDodgevilleUpland Hills Health3
9Aspirus Wausau HospitalWausauAspirus1
10Marshfield Medical Center - MarshfieldMarshfieldSanford Health1

Top 10 of 13 Madison hospitals with an affiliated gastroenterologistAll 7 Madison hospitals

See every hospital and group for each Madison gastroenterologist

Each public profile names one place a gastroenterologist practices. A free account shows all of them, with the employer, the EHR and validated contacts.

Try for free

Source: Dmand AI Affiliation Data

Most Madison gastroenterologists practice at a hospital: 40 of the 41 with a mapped site

28 also practice at school health centers, and 25 at a medical group site. A gastroenterologist can practice at several kinds of site, so the shares overlap.

Madison gastroenterologists by site of care

  1. Hospitals40
  2. School health centers28
  3. Medical group practices25

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

33% of Madison gastroenterologists finished medical school 30 or more years ago

13 of the 39 Madison gastroenterologists with a graduation year on file. 3 graduated in the last 10 years, fewer than graduated 40 or more years ago.

Physicians by years since medical school

  1. Under 10 years ago3
  2. 10 to 19 years ago14
  3. 20 to 29 years ago9
  4. 30 to 39 years ago9
  5. 40 or more years ago4

Source: Dmand AI Professional Profile Data

Every Madison gastroenterologist profile shows current hospitals and groups, Medicare activity and NPI details

  • Primary practiceThe main place they practice, with its type and cityOn every profile
  • Every site of careEach hospital, clinic and group where they practice nowWith a free account
  • EmployerThe organization they work for, when one is on fileWith a free account
  • Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
  • Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
  • Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
  • Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
  • Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
  • NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
  • Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
  • EHR in useThe EHR at each site where they practiceWith a free account
  • Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account

Free account: 30 days free, self-serve, no credit card.

Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the Madison gastroenterologist directory

Sources for the data on this page
Data on this pageSource
HCPs, types and specialtiesNPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groupsDmand AI Affiliation Data
Medical school graduation yearDmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracyRemove my information

Gastroenterologists are HCPs whose primary specialty is gastroenterology (taxonomy code 207RG0100X), with an active NPI and a Madison practice address.

FAQ

Frequently asked questions about gastroenterologists in Madison

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many gastroenterologists are in Madison?

46 gastroenterologists have an active NPI, a Madison practice address and gastroenterology (taxonomy code 207RG0100X) as their primary specialty. 41 of them are linked to a hospital or medical group.

Which Madison medical groups have the most gastroenterologists?

UW Health, with 31, followed by SSM Health Dean Medical Group with 9 and Reedsburg Area Medical Center with 2.

Which Madison hospitals have the most gastroenterologists?

University Hospital, with 31 affiliated gastroenterologists, followed by UnityPoint Health - Meriter with 26 and SSM Health St. Mary's Hospital - Madison with 9.

What share of Madison gastroenterologists practice at a hospital?

40 of the 41 Madison gastroenterologists with a mapped site of care, or 98%, have a current hospital affiliation.

What is the taxonomy code for gastroenterology?

207RG0100X is the NPPES taxonomy code for gastroenterology. Sub-specialties with their own code are counted on their own lists.

How can I contact gastroenterologists in Madison?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for gastroenterologists in Madison through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.

Dmand AI

Find the right contacts among Madison gastroenterologists

Search 46 Madison gastroenterologists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)