Gastroenterologists in Santa Clara, CA

  • Gastroenterology
  • Santa Clara, California
Gastroenterologists
29
Linked to a hospital or group
27
Hospitals with a gastroenterologist
11
Medical groups with a gastroenterologist
4
Practice at a hospital
19

There are 29 gastroenterologists in Santa Clara. The Permanente Medical Group, Inc. has the most, 17, and San Jose Medical Center has the most affiliated gastroenterologists, 6. 30% finished medical school 30 or more years ago.

Find work emails and mobile numbers for all 29 Santa Clara gastroenterologists

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Santa Clara gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a Santa Clara 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.

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Santa Clara gastroenterologists, A to Z
GastroenterologistHospitalsMedical groupsEmail and phone
Alaa Abousaif, MDNPI 12351241081 hospital2 groupsContacts
Michael S. Ahn, MDNPI 12251151731 hospital1 groupContacts
Omar Bakr, MD, MPHNPI 1275995953-1 groupContacts
Gayatri Bharadhwaj, MDNPI 18514765192 hospitals1 groupContacts
Krisna P. Chai, MDNPI 1013007202-1 groupContacts
Matthew S. Chang, MDNPI 1598949521-1 groupContacts
Alan L. Chin, MDNPI 17504672621 hospital1 groupContacts
Ashwinee Satish Condon, MDNPI 18315167491 hospital2 groupsContacts
Eduardo B. V. Da Silveira, MD, MSNPI 13261353772 hospitals1 groupContacts
Caitlin C. Doan, MDNPI 1285711135-1 groupContacts
Spencer T. Fung, MDNPI 1669559506-1 groupContacts
Bhargava Narayana Gannavarapu, MDNPI 18818218253 hospitals3 groupsContacts
Jay J. Guan, MDNPI 12951224971 hospital1 groupContacts
Cary Alexander Kraft, MDNPI 1740643493-1 groupContacts
Dan Li, MDNPI 1871757153-1 groupContacts
Lei Y. Lim, MDNPI 19322143841 hospital1 groupContacts
Oliver Nicholas Lin, MDNPI 14979815752 hospitals1 groupContacts
Justin M. Marasigan, DONPI 11747140672 hospitals2 groupsContacts
Stephen L. Moff, MDNPI 10938929451 hospital1 groupContacts
Michelle Hoaitrang Nguyen, MDNPI 18119679201 hospital2 groupsContacts
Luis H. Ocampo Jr., MDNPI 18314804661 hospital1 groupContacts
Gurpreet K. Rihal, MDNPI 10938915091 hospital1 groupContacts
Micha S. Rojany, MDNPI 10735536811 hospital1 groupContacts
Atenodoro R. Ruiz Jr., MDNPI 1154408003--Contacts
Derrick Siao, MDNPI 1073849261-1 groupContacts
Karen L. Simon, MDNPI 15483841671 hospital2 groupsContacts
Hardeep M. Singh, MDNPI 12755440742 hospitals2 groupsContacts
Raymond H. Tu, MDNPI 11140036211 hospital1 groupContacts

The list shows the 28 gastroenterologists with a public profile. The other 1 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 Santa Clara gastroenterologists by the EHR they use

Dmand AI has the EHR for 29 of 29 Santa Clara 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.

The Permanente Medical Group, Inc. has the most gastroenterologists in Santa Clara, with 17

Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners) is second with 10, and UCLA Medical Group third with 1. Counts are gastroenterologists with a California address linked to each group.

Top 4 of 4 Santa Clara medical groups with a gastroenterologist

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

San Jose Medical Center has the most affiliated gastroenterologists in Santa Clara, with 6

Dignity Health - St. John's Regional Medical Center is second with 5, and Santa Clara Medical Center third with 3. Santa Clara gastroenterologists are affiliated with 11 hospitals in all.

Hospitals with the most gastroenterologists in Santa Clara
#HospitalHealth systemGastroenterologists
1San Jose Medical CenterSan JoseKaiser Permanente6
2Dignity Health - St. John's Regional Medical CenterOxnardCommonSpirit Health5
3Santa Clara Medical CenterSanta ClaraKaiser Permanente3
4Good Samaritan HospitalSan JoseHCA Healthcare3
5Providence St. Joseph Hospital OrangeOrangeProvidence2
6El Camino Health - Mountain View HospitalMountain ViewEl Camino Healthcare District2
7Santa Clara Valley Medical CenterSan JoseCounty of Santa Clara, CA1
8Walnut Creek Medical CenterWalnut CreekKaiser Permanente1
9Hoag Hospital Newport BeachNewport BeachHoag Memorial Hospital Presbyterian1
10Community Memorial Hospital - VenturaVenturaCommunity Memorial Healthcare1

Top 10 of 11 Santa Clara hospitals with an affiliated gastroenterologist

See every hospital and group for each Santa Clara 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.

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Source: Dmand AI Affiliation Data

Group practices and clinics are the most common site of care for Santa Clara gastroenterologists, with 25

19 also practice at hospitals. A gastroenterologist can practice at several kinds of site, so the shares overlap.

Santa Clara gastroenterologists by site of care

  1. Medical group practices25
  2. Hospitals19

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

30% of Santa Clara gastroenterologists finished medical school 30 or more years ago

8 of the 27 Santa Clara gastroenterologists with a graduation year on file. 0 graduated in the last 10 years.

Physicians by years since medical school

  1. Under 10 years ago0
  2. 10 to 19 years ago9
  3. 20 to 29 years ago10
  4. 30 to 39 years ago8
  5. 40 or more years ago0

Source: Dmand AI Professional Profile Data

Every Santa Clara 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 Santa Clara 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 Santa Clara practice address.

FAQ

Frequently asked questions about gastroenterologists in Santa Clara

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 Santa Clara?

29 gastroenterologists have an active NPI, a Santa Clara practice address and gastroenterology (taxonomy code 207RG0100X) as their primary specialty. 27 of them are linked to a hospital or medical group.

Which Santa Clara medical groups have the most gastroenterologists?

The Permanente Medical Group, Inc., with 17, followed by Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners) with 10 and UCLA Medical Group with 1.

Which Santa Clara hospitals have the most gastroenterologists?

San Jose Medical Center, with 6 affiliated gastroenterologists, followed by Dignity Health - St. John's Regional Medical Center with 5 and Santa Clara Medical Center with 3.

What share of Santa Clara gastroenterologists practice at a hospital?

19 of the 27 Santa Clara gastroenterologists with a mapped site of care, or 70%, 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.

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Search 29 Santa Clara gastroenterologists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.

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