Arrowhead Gastroenterology
Gastroenterology • Glendale, AZ
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
Arrowhead Gastroenterology Location in Glendale, Arizona offers gastroenterology services including endoscopy, colonoscopy, anorectal manometry, capsule endoscopy, endoscopic ultrasonography, and upper endoscopy. The clinic is staffed by gastroenterologists including Anthony P. Merrill, DO, Sukhdeep Padda, MD, Vikram B. Singh, MD, Enrique A. Valdivia, MD, and Khushbir Bath, MD.
Services Offered
Technology & Equipment
Team
Insurance & Payment
Languages Spoken
Photos
Photos published by Arrowhead Gastroenterology showing the gastroenterology practice in Glendale, AZ.
What Patients Say
Overall sentiment across review platforms: mixed
- Birdeye: 2.2/5 stars (53 reviews) (53 reviews)
- Yelp/Apple Maps aggregate: 1.9/5 stars (51 reviews)
- Vitals (Dr. Anthony P. Merrill): 4.3/5 stars (Not specified (individual profile))
Patients praise
- Some patients appreciate thorough and successful treatment outcomes
- Professional and caring experiences reported with specific providers like Dr. Merrill
- Helpful and efficient scheduling/administrative support reported by some patients
Common complaints
- Poor bedside manner and perceived lack of compassion from some doctors
- Concerns regarding unprofessional or rude office staff and management
- Reports of rushed appointments and insufficient time spent with patients
- Frustration with diagnostic processes and communication follow-ups
"Such a rude doctor. Literally rushed through the visit and solely focused on marijuana use. . . . Clearly his bedside manner is trash and doesn’t enjoy his job or even express that he wants to help you."
- Birdeye Review"Absolutely the most unprofessional experience I have ever had with a medical office. Nicole, the so-called "office manager," is rude, condescending, and completely unwilling to hear the truth."
- Apple Maps/Yelp Review"Had a colonoscopy done by Dr. Anthony P. Merrill at Arrowhead Gastroenterology Associates. He was very professional and caring. Also, was able to give me a complete colonoscopy where another Dr. could not."
- Vitals 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, Gastroenterology Nutrition - Schedule Appointment - Dec 7, 2025
- Abrazo Arrowhead Campus is offering a simple, low-cost health screening. Angioscreen® is a quick 10-minute vascular screening that can identify risks for heart attack - Glendale Independent - Jan 9, 2026
- Abrazo Hiring Event for RN's, Cath Lab, Therapy & Imaging - Mesa Independent - Jun 15, 2026
- Sarah Glinos, FNP - Peoria, AZ - Gastroenterology - Schedule Appointment - Feb 6, 2026
Information sourced from the clinic's website as of July 10, 2026.
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