Pediatric Gastroenterologists in Arizona
Data updated monthly · Last refresh October 2026
47 Pediatric Gastroenterology providers practice in Arizona, including 1 (2%) offering telehealth. The largest concentration is in Phoenix. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
47providers
1telehealth
Phoenixtop city
Pediatric Gastroenterology by city in Arizona
Choose a city to see providers there.
Where Pediatric Gastroenterologists in Arizona practice
From CMS Medicare enrollment records covering 14 of the 47 providers listed here (30%). Providers who do not bill Medicare are not included in these figures.
Largest practice groups
| Group (as registered with Medicare) | Pediatric Gastroenterologists | All clinicians in group | Main city |
| Phoenix Children's Hospital | 11 | 431 | Phoenix |
| Banner-University Medical Group | 2 | 1,066 | Tucson |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Pediatric Gastroenterology providers in Arizona
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Husam Srour Mallah, MDGlendale, AZ · $204 in drug and device payments (2025) ·
(602) 865-4230 Dr. Sanjeev Khurana, MDGlendale, AZ · $256 in drug and device payments (2025) ·
(623) 825-5200 Dr. Aldo Maspons, MDPhoenix, AZ · No drug or device payments recorded (2025) ·
(602) 344-5011 Dr. Amanda Pope, MDPhoenix, AZ · No drug or device payments recorded (2025) ·
(602) 933-0940 Dr. Ashish Patel, MDPhoenix, AZ · $3,218 in drug and device payments (2025) ·
(602) 933-0940 Dr. Brad Pasternak, MDPhoenix, AZ · $5,240 in drug and device payments (2025) ·
(602) 933-0940 Dr. Carrie Reynolds, MDPhoenix, AZ · No drug or device payments recorded (2025) ·
(602) 344-5011 Dr. Colby Sharlin, MDPhoenix, AZ · $579 in drug and device payments (2025) ·
(602) 546-2923 Dr. Dana Williams, MDPhoenix, AZ · $160 in drug and device payments (2025) ·
(602) 933-0940 Dr. Elizabeth Collyer, MDPhoenix, AZ · $512 in drug and device payments (2025) ·
(602) 933-0940 Dr. Elizabeth Hilow, M.D.Phoenix, AZ · $960 in drug and device payments (2025) ·
(602) 933-0940 Dr. Emmanuel Siaw, MDPhoenix, AZ · No drug or device payments recorded (2025) ·
(602) 933-0940 Dr. Eric DybbroPhoenix, AZ · $2,112 in drug and device payments (2025) ·
(602) 933-0940 Dr. Gary Silber, M.D.Phoenix, AZ · $317 in drug and device payments (2025) ·
(602) 933-0940 Dr. Jacqueline Schenkein, M.D.Phoenix, AZ · No drug or device payments recorded (2025) ·
(602) 933-0940 Dr. Joseph Woolley, DOPhoenix, AZ · $9,588 in drug and device payments (2025) ·
(602) 933-0940 Dr. Joshua Carroll, M.D.Phoenix, AZ · $187 in drug and device payments (2025) ·
(602) 546-2923 Dr. Krishnapriya Prathapan, M.D.Phoenix, AZ · No drug or device payments recorded (2025) ·
(602) 344-5011 Dr. Kristy Ingebo, M.D.Phoenix, AZ · No drug or device payments recorded (2025) ·
(602) 933-0940 Dr. Laura HamantPhoenix, AZ · $171 in drug and device payments (2025) ·
(602) 933-1000 Dr. Mansi Amin, M.D.Phoenix, AZ · No drug or device payments recorded (2025) ·
(602) 933-0940 Dr. Mark Mcomber, MDPhoenix, AZ · $253 in drug and device payments (2025) ·
(602) 933-0940 Dr. Michael Finch, M.D.Phoenix, AZ · $727 in drug and device payments (2025) ·
(602) 406-2344 Dr. Michelle Gonzalez Salgado, M.D.Phoenix, AZ · $224 in drug and device payments (2025) ·
(602) 933-0940 Dr. Mitchell Shub, M.D.Phoenix, AZ · $224 in drug and device payments (2025) ·
(602) 933-0940 Dr. Ozlem Pinar Bulut, M.D.Phoenix, AZ · $168 in drug and device payments (2025) ·
(602) 933-0940 Dr. Patrick Rowland, MDPhoenix, AZ · $357 in drug and device payments (2025) ·
(602) 933-0940 Dr. Paula Tizzard, M.DPhoenix, AZ · $6,044 in drug and device payments (2025) ·
(786) 296-3528 Dr. Paul TranPhoenix, AZ · $3,986 in drug and device payments (2025) ·
(602) 933-0940 Dr. Ramon Montes, M.D.Phoenix, AZ · No drug or device payments recorded (2025) ·
(602) 933-0940 Dr. Reham Abdou, M.DPhoenix, AZ · $372 in drug and device payments (2025) ·
(602) 344-5011 Dr. Rima Jibaly, MD BSPhoenix, AZ · $199 in drug and device payments (2025) ·
(602) 344-1015 Dr. Roxanne Hecht, MDPhoenix, AZ · No drug or device payments recorded (2025) ·
(602) 344-5343 Dr. Shauna Schroeder, MDPhoenix, AZ · $115,260 in drug and device payments (2025) ·
(602) 933-0940 Dr. Sheetal Wadera, M.D.Phoenix, AZ · $357 in drug and device payments (2025) ·
(602) 344-5885 Dr. Ahmed Dahshan, MDTucson, AZ · No drug or device payments recorded (2025) ·
(520) 324-7200 Dr. Fayez Ghishan, M.D.Tucson, AZ · No drug or device payments recorded (2025) ·
(520) 694-9988 Dr. Hassan HassanTucson, AZ · No drug or device payments recorded (2025) ·
(520) 694-9988 Dr. Khalid Khan, MDTucson, AZ · $271 in drug and device payments (2025) · Telehealth ·
(520) 626-6211 Dr. Marie Raphaelle Jean, M.D., MPHTucson, AZ · No drug or device payments recorded (2025) ·
(520) 626-5959 Dr. Walaa Elfar, MDTucson, AZ · No drug or device payments recorded (2025) ·
(520) 694-5437 Common questions
How many Pediatric Gastroenterology providers are in Arizona?There are 47 Pediatric Gastroenterology providers with active NPI records practicing in Arizona, according to federal NPPES data refreshed monthly.
Do Pediatric Gastroenterology providers in Arizona offer telehealth?Yes. 1 of the 47 Pediatric Gastroenterology providers in Arizona (about 2%) report offering telehealth services in CMS data.
Which cities in Arizona have the most Pediatric Gastroenterology providers?Phoenix (34), Tucson (8), Mesa (3) have the highest concentration of Pediatric Gastroenterology providers in Arizona.
How many Pediatric Gastroenterology providers in Arizona received drug or device company payments?32 of 47 Pediatric Gastroenterology providers in Arizona (68%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
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