
Arizona Gastrointestinal Associates
Gastroenterology • Phoenix, AZ • Since 2012 • Multiple locations across the Valley (Phoenix metropolitan area) locations
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 10, 2026. How our information is sourced · Report incorrect information
About
Arizona Gastrointestinal Associates (AGA) is a gastroenterology practice in Scottsdale, Arizona, offering colonoscopy, endoscopy, capsule endoscopy, endoscopic ultrasonography, upper endoscopy, anorectal manometry, GI diagnostics, and outpatient surgery center procedures. The practice operates multiple locations across the Phoenix Valley region and includes in-house pathology services.
Services Offered
Technology & Equipment
Team
Insurance & Payment
Not published.
Patient Quick Pay, Self-pay
Languages Spoken
Not published.
Photos
Photos published by Arizona Gastrointestinal Associates showing the gastroenterology practice in Phoenix, AZ.





What Patients Say
Overall sentiment across review platforms: positive
- WebMD: 5.0/5.0 (168 ratings)
- Healthgrades: 4.6/5.0 (8 ratings)
- Healthgrades: 4.5/5.0 (96 ratings)
- Beaming Health: 3.1/5.0 (3 ratings)
Patients praise
- Highly skilled and knowledgeable physicians
- Effective and clear explanation of procedures (colonoscopies/endoscopies)
- Professional and reassuring bedside manner
- Efficient and clean medical facilities
- Compassionate care and long-term patient loyalty
Common complaints
- Difficulty scheduling appointments and long wait times
- Poor communication and lack of responsiveness from office/billing staff
- Billing errors and disputes over "no-show" fees
- Concerns regarding cold or dismissive bedside manner from some physicians
- Rare reports of post-procedural complications
"I have known Dr. Schwartz for many years. He has done several procedures on me (Endoscopy, colonoscopy). I rate him as a 5 stars professional. Top of the line expertise and experience."
- WebMD Review"This is THEE WORST facility I have ever been to. I will NEVER go to Banner anything again. They don't return calls, they make you wait hours for a scheduled procedure, they give no instructions after the procedure."
- LocalityBiz ReviewSynthesized from public review platforms as of Jul 10, 2026 - sources: [1][2][3][4].
In the News
- Dr. Nisha Sharma, MD - Phoenix, AZ - Gastroenterology - Schedule Appointment - Mar 10, 2026
- Dr. Wahid Wassef, MD - Phoenix, AZ - Gastroenterology - Schedule Appointment - Dec 7, 2025
- Dr. Tisha Lunsford, MD, Gastroenterologist | Scottsdale, AZ | WebMD - Sep 25, 2025
- Deborah Bernadine Artus, PA-C - Phoenix, AZ - Gastroenterology - Schedule Appointment - Dec 8, 2025
- Dr. Michael Koss, MD - Peoria, AZ - Gastroenterology - Mar 25, 2026
Information sourced from the clinic's website as of July 10, 2026.
Other gastroenterology clinics in Phoenix
Comparing your options?
See other gastroenterology clinics in Phoenix, or search the full directory by insurance, ratings, and more.


