GI Cancer Program, Phoenix

Your treatment options

Our doctors are trained and experienced in treating the wide range of gastrointestinal diseases. Treatments for most gastrointestinal diseases include the following, either alone or in combination:

For patients with advanced colorectal, appendix or stomach cancer, surgery to reduce the size of a tumor may be recommended in combination with hyperthermic intraperitoneal chemotherapy (HIPEC), a highly concentrated, heated chemotherapy treatment delivered directly to the abdominal cavity during surgery.

Within the GI Cancer Program, the gastroenterology team offers patients a number of minimally invasive techniques to diagnose and treat tumors and help reduce cancer-related symptoms. The team combines diagnostic test and state-of-the-art technologies with non-surgical techniques, such as colonoscopy to examine the inner lining of the colon and rectum, and endoscopic mucosal resection to remove abnormal tissue. The team also uses endoscopic ultrasound with fine-needle biopsy and radiofrequency ablation and other tools to treat esophageal, pancreatic, bile duct and colorectal cancers.

For patients with early-stage esophageal cancer or non-cancerous polyps in the intestines, our gastroenterologists may combine state-of-the-art technologies with non-surgical techniques, such as endoscopic mucosal resection, to remove abnormal tissue. They also use a wide range of tools, such as endoscopic ultrasound with fine-needle biopsy and radiofrequency ablation, to treat esophageal, pancreatic, bile duct and colorectal cancers.

Meet our GI Cancer Program team

Toufic Kachaamy - Medical Director of Interventional Gastroenterology (GI),  Endoscopy and Innovation, Gastroenterologist & Advanced Endoscopist

Toufic Kachaamy, MD

Interventional Program Specialist


Robert Galamaga

Medical Director

Saba Radhi - Medical Oncologist

Saba Radhi

Medical Oncologist

Diego Muilenburg - Surgical Oncologist

Diego Muilenburg

Surgical Oncologist, CTCA Phoenix

Marnee Spierer - Chief of Staff & Chief of Radiation Oncology

Marnee Spierer

Chief of Staff & Chief of Radiation Oncology, CTCA Phoenix

Vivek Iyer - Medical Director of Pain Management; Interventional Pain Management Specialist

Vivek Iyer

Medical Director of Pain Management, CTCA Phoenix


Lata Madhavi Aluri

Medical Oncologist and Hematologist

See all CTCA Physicians

A comprehensive team approach

The GI Cancer Program team at CTCA® Phoenix is committed to a multidisciplinary approach to care. After diagnosis, each patient is evaluated by a medical oncologist, who then builds the appropriate team based on the patient’s needs. Then the entire team, along with the patient, works together to develop a treatment plan designed to specifically for the patient. Throughout treatment and follow up, the team meets regularly to ensure that everyone is in alignment with the needs of the patient.

This collaborative, personalized approach allows us flexibility along the treatment journey, while also fostering an environment where experts in a variety of disciplines work together, all under one roof. New options may arise or different goals may be proposed during the course of treatment. We monitor the patient throughout treatment and adjust the care plan as needed.

Integrative cancer care

As a patient at the GI Cancer Program, your team also works closely with other supportive care providers to help manage additional disease- and treatment-related side effects, such as nausea and vomiting. These supportive services may include a pain management physician, as well as naturopathic, mind-body and spiritual support providers.

Because of the digestive tract’s role in processing food and waste, many patients with gastrointestinal disease have difficulty with digestive function. That’s why nutritional support is a key component of the GI Cancer Program's approach. The program has a dedicated clinical dietitian on staff to work with patients in developing a healthy, balanced and appetizing nutrition plan. If patients become malnourished, our dietitian is also available to help them establish healthy lifestyle and eating habits to help improve their condition.

Rosie Painter

Rosie P.

Colorectal Cancer

"We called the toll-free number to inquire about a second opinion. Even from that first phone call, I felt well cared for. There were no voice prompts to wade through or shuttling from one person to the next. After meeting with the care team and being exposed right away to CTCA’s Mother Standard® of care, I had a CT scan and was walked through a proposed treatment plan a day or so later. "


More About ROSIE

GI cancer clinical trials

Our oncologists are committed to improving treatment options for gastrointestinal cancer patients. As part of that commitment, the GI Cancer Program offers qualified patients carefully selected clinical trials in studying new treatment approaches like immunotherapy for pancreatic cancer and other innovative research.

Although clinical trials are not available to all patients, they may offer some patients options that would otherwise be unavailable to them. Your care team will discuss whether you qualify for any of our ongoing clinical trials, and if so, help you enroll.

Learn more about the CTCA clinical trials program and which trials are available

For general questions, contact an Oncology Information Specialist at 888-841-9129.

Where we are located

CTCA Phoenix

GI Cancer Program
14200 W. Celebrate Life Way
Goodyear, AZ 85338

New patients: 833-650-7781
Existing patients: 888-357-CTCA

Get directions

Outpatient Care Center, Gilbert

3530 S. Val Vista Drive, Suite C204
Gilbert, AZ 85297

New patients: 833-650-7781
Existing patients: 480-530-4700

Get directions

Outpatient Care Center, North Phoenix

2915 W. Rose Garden Lane
Phoenix, AZ 85027

New patients: 833-650-7781
Existing patients: 623-932-8960

Get directions

Outpatient Care Center, Scottsdale

9755 N. 90th St., Suites A-100 and B-130
Scottsdale, AZ 85258

New patients: 833-650-7781
Existing patients: 480-935-4200

Get directions

New research

Offering clinical trials on new and emerging cancer treatment options.

View our clinical trials

What’s your risk?

Assess your cancer risk and take control

Assess your cancer risk

Insurance plans

We accept a wide range of insurance plans.

Verify your insurance