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Clinic Type

Gastroenterology

Address

6020 E Arbor Avenue, Suite 101, Mesa, AZ 85206

Phone

480-985-1700

Email

Opening Hours

Monday – Thursday 8:30AM – 5:00PM; Friday 8:30AM – 4:00PM

Telehealth

https://gialliance.com/service/virtual-telemedicine-united-states/

Emergency Care

If you are experiencing a medical emergency, please call 9-1-1.

Services Offered

  • Gastroenterology
  • Pediatric gastroenterology
  • Colorectal cancer screening
  • Endoscopy
  • Infusion therapy
  • Telemedicine
  • Chronic care management
  • Pancreatoscopy
  • Robot-assisted surgery
  • Transoral incisionless fundoplication (TIF)
  • Sphincterotomy
  • Orbera managed weight loss
  • Non-surgical weight loss
  • Luminal stent placement
  • Overstitch endoscopic suturing
  • Radiofrequency ablation (RFA)
  • Livermultiscan
  • Obalon balloon procedure
  • Plication/stenting procedures
  • Colon cancer screening
  • Gastroduodenal procedures
  • Endoscopic procedures

Team

  • Andrew K. Collins, M.D. — Gastroenterologist
  • Craig M. Stein, M.D. — Gastroenterologist
  • Ramsey K. Umar, M.D. — Gastroenterologist/Physician Executive
  • Jordan Vulcano, D.O. — Gastroenterologist
  • George J. Walker, M.D. — Gastroenterologist
  • Shauna Binette, ANP-C — Advanced Nurse Practitioner

Insurance & Payment

Insurance, Cash, Credit/Debit, Self-pay

Languages Spoken

  • English

Current Offers

New patient special

FAQs

Request An Appointment

This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Beaming Health (Aggregator): 3.4 out of 5 stars (based on 42 reviews across aggregated platforms) (42 reviews (aggregated))
  • Beaming Health (Baseline location): 2.7 out of 5 stars (based on 22 reviews) (22 reviews)
  • Arizona Digestive Health Official Website (Mesa East location): 4.6 out of 5 stars (346+ reviews)

Patients praise

  • Patients often report high satisfaction with the medical expertise and bedside manner of individual doctors and physician assistants
  • Positive experiences with medical procedures, including feeling well-informed and treated with care by clinical staff
  • Many patients express appreciation for the thoroughness of the practitioners and the effective management of complex GI conditions

Common complaints

  • Difficulty reaching the office by phone and receiving follow-up responses
  • Billing and collections disputes, including complaints about "no-show" fees and unexpected charges
  • Unprofessional or rude conduct reported by some staff members
  • Communication lapses regarding test results and medical instructions

"Charged $360.00 for cancellation because only 2 days notice given and they said 3 days is required."

Better Business Bureau review

"If this office cannot answer phones, or follow up with patients why do they fine? Who is responsible if the reason I couldn't reschedule is because they do a horrible job answering and following up?"

Better Business Bureau complaint

"Well organized front desk, extremely personable and knowledgeable med assistant and the practitioner."

Arizona Digestive Health patient feedback

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 10, 2026.

More gastroenterology clinics in Mesa

Mesa, AZ·Gastroenterology

Mesa Gastrointestinal Associates (Mesa GI) is a gastroenterology clinic in Mesa, AZ, affiliated with Arizona Digestive Health and The GI-Alliance. It operates two Mesa offices and specializes in gastrointestinal services for the East Valley of the Phoenix area. The practice is part of the healthcare/hospitals sector, with a small team (listed as 1 employee) and contact numbers 480-461-1088 and 480-461-1657. Website: mesagi.com. Key details: - Services: Gastroenterology (GI) care in Mesa, AZ - Locations: - 1520 S Dobson Rd, Ste 302, Mesa, AZ 85202 - 603 W Baseline Rd, Ste 200, Mesa, AZ 85210 - Headquarters: Mesa, AZ - Categories: healthcare, clinic, Arizona digestive health, GI Alliance - Online presence: ~2,747 monthly visits; US-based audience; low bounce rate - Contact: 480-461-1088 / 480-461-1657 If you’re seeking a trusted GI clinic in Mesa, Mesa GI provides gastroenterology services across two Mesa locations under a larger GI network.

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