Physicians

ABOUT OUR PHYSICIANS

Surgeons

Patrick Chiasson, M.D., FACS

Board-Certified General Surgeon

northwest medical center tucson chiasson

Dr. Patrick Chiasson migrated to Tucson from Canada. He received his medical education at McGill University, a Master’s Degree from the Institute for History of Medicine at Johns Hopkins University, and his general surgical training at Dalhousie University. He completed his sub-specialty training in advanced laparoscopic surgery at the University of Toronto’s highly-regarded Center for Minimally Invasive Surgery.

He has numerous publications to his credit that address such issues as Minimally Invasive Surgery techniques and outcomes, health policy, and medical ethics and health law. His particular surgical interests include the application of advanced laparoscopic and endoluminal techniques to manage digestive diseases involving the esophagus and stomach including the surgical management of morbid obesity.

Office Location
6130 N. La Cholla Blvd. | Suite 250
Tucson, AZ 85741
(520) 219-8690

Education and Medical Training

  • MA, History of Medicine

Johns Hopkins University, Baltimore, MD

  • Medical Degree

McGill University, Montreal, Quebec, Canada

  • Internship

Royal Columbian Hospital, Vancouver, British Columbia, Canada

  • Residency, General Surgery

Dalhousie University, Halifax, Nova Scotia, Canada

  • Clinical Fellowship

The Centre for Minimally Invasive Surgery, St. Michael’s Hospital, University of Toronto, Canada

Dr. Stephen Burpee is a board-certified and fellowship trained minimally invasive general and bariatric surgeon. After spending five years as a family physician in Ontario, Canada, he embarked on a surgical career. His experience as a family physician has helped him manage the complex medical issues surrounding many of his surgical patients.

He completed his general surgery residency at Lenox Hospital in New York City, while also spending six months at Mount Sinai Hospital in Manhattan learning laparoscopic surgery under the guidance of some of the pioneers in this field. Following his residency, he returned to Toronto, Canada for a two-year fellowship in minimally invasive general surgery. He also spent two months at the University of Pittsburgh Medical Center refining his laparoscopic surgery skills. In 2003 when he completed his training, he began practicing at Northwest Medical Center.

Office Location
6130 N. La Cholla Blvd. | Suite 250

Tucson, AZ 85741
(520) 219-8690

Education and Medical Training

  • Medical Degree

University of Western Ontario, London, Ontario, Canada

  • Internship

University of Toronto, St. Joseph’s Health Center, Toronto, Ontario, Canada

  • Residency, General Surgery

Lennox Hill Hospital, New York, New York

  • Clinical Fellowship, Laparoscopic Surgery

The Centre for Minimally Invasive Surgery, St. Michael’s Hospital, University of Toronto, Canada

Stephen Burpee, M.D., FACS

Board-Certified General Surgery

northwest medical center tucson burpee

Our Surgeons

Both Dr. Burpee and Dr. Chiasson have a special interest in the surgical treatment of diseases of the foregut (esophagus and stomach) including GERD, hiatal hernia, achalasia, gastroparesis and benign and malignant conditions of the esophagus and stomach. In addition to their focus on digestive diseases, their practice also includes bariatric surgery. Dr. Burpee and Dr. Chiasson are both fellowship-trained in minimally invasive surgery and have numerous publications to their credit.

Gastroenterologists

Paul Butler, M.D.

Board-Certified Gastroenterology

northwest medical center tucson butler

As a board-certified gastroenterologist with more than 27 years of practice experience, it is the goal of Paul Butler, M.D., to provide the highest level of care to patients with diseases and disorders of the GI tract and digestive system.

Over the years as a practicing physician, Dr. Butler has developed a special interest and expertise in treating inflammatory bowel disease (IBS) and in therapeutic endoscopy.

When it comes to providing exemplary patient care, Dr. Butler believes availability and good communication are key factors in the doctor-patient relationship. He strives to be a good listener and to create an environment of trust in his practice. Educating patients about their GI health has been another of Dr. Butler’s top priorities throughout his career as a gastroenterologist.

Outside of the office, Dr. Butler enjoys photography and traveling.

Office Location
1521 E. Tangerine Rd. | Suite 131
Oro Valley, AZ 85755
(520) 901-6336

Education and Medical Training

  • Medical Degree

The Ohio State University, Columbus, OH

  • Residency

Internal Medicine, The Ohio State University Hospitals, Columbus, OH

  • Clinical Fellowship

Gastroenterology, The Ohio State University Hospitals, Columbus, OH

Helping people has always been Dr. Dodman’s passion. She strives hard to listen and encourages her patients to tell their stories. Her goal is to partner with primary care providers and patients, to present relevant, up-to-date information, and help patients make informed choices about their healthcare. Dr. Dodman is a strong patient advocate, she’s direct and honest, and encourages and teaches her patients to advocate for themselves.

Dr. Dodman has a diverse background and started her professional journey in the army, where she served as a combat medic. She was the first female to complete the GI fellowship in her program. She also had the privilege of studying liver disease in London at the Royal Free Hospital, under the tutelage of Professor Dame Shelia Sherlock.

She has designed educational programs for medical students and served as program director for a large internal medicine residency program. Dr. Dodman values education and loves to teach and learn. She has worked administratively on several quality/performance initiatives which have all been patient-safety centered, has completed fellowships in patient safety and health policy, and earned an MBA in healthcare management.

She believes a speak-out culture helps build a safer culture, with improved outcomes and higher quality. She empowers all she works with and serves to find and use their voices. Trust is earned, never given and she hopes to earn yours.

Office Location
7890 N. Cortaro Rd.
Tucson, AZ 85743
(520) 202-7770

Education and Medical Training

  • Medical Degree

University of New England, Biddeford, ME

  • Residency

Internal Medicine, Michigan State University/Lansing General Hospital, Lansing, MI

  • Clinical Fellowship

Gastroenterology, Botsford General Hospital, Farmington Hills, MI

Michele Dodman, D.O., FACOI

Board-Certified Gastroenterology

northwest medical center tucson dodman

Rehan Iftikhar, M.D.

Board-Certified Gastroenterology

northwest medical center tucson iftikhar

Dr. Iftikhar is a board-certified gastroenterologist with nearly 20 years in practice. He has also completed training in advanced clinical and transplant hepatology. After spending time in academic care in Saint Louis, he moved to Tucson to practice.

His approach to patient care is simple; don’t rush and spend time and listen. He never considers his patients as a client or customer, for him they are individuals in need of medical care and he strives to provide it with utmost care.

He manages all aspects of gastrointestinal and hepatological diseases. Dr. Iftikhar is fully trained in all modalities of diagnostic and therapeutic upper endoscopy and colonoscopy, radiofrequency ablation of Barrett’s esophagus, ERCP and PEG tube placement.

When not involved in patient care, Dr. Iftikhar enjoys playing cricket, tennis, hiking and spending time with family.

Languages spoken: English, Urdu.

Office Locations

Main Office
1951 W. Grant Road | Suite 160
Tucson, AZ 85745
(520) 624-4342

Additional Clinics
Green Valley, Northwest Tucson, Sierra Vista, Nogales
(520) 624-4342

Education and Medical Training

  • Medical Degree

Dow Medical College, Karachi, Pakistan

  • Residency

Internal Medicine, Stony Brook University, NY

  • Clinical Fellowship

Gastroenterology, St. Louis University, MO Hepatology, St. Louis University, MO

Dr. Lin’s decision to become a gastroenterologist grew from personal experience with my father’s diagnosis of bile duct cancer. As a GI physician, he identifies with concerns patients and their families may have. As a partner in your care, he strives to ensure you understand the diagnosis, and why tests and treatments are warranted.

Good communication with patients and primary physicians is of utmost importance. He expects himself and his staff to be responsive to questions and needs. When explaining a significant test result or diagnosis, Dr. Lin calls personally–on weekends and holidays if needed. His goal is to ensure patients are seen quickly. He provides complete care – from diagnosis, to treatment and follow up.

In addition to general gastroenterology, Dr. Lin’s clinical interests are inflammatory bowel disease, Barrett’s esophagus, and GI cancer staging. He is trained in endoscopic ultrasound, radiofrequency ablation, video capsule endoscopy, mucosal resection, feeding tube placement, upper endoscopy, and colonoscopy.

In his free time, he enjoys traveling, music and spending time with his wife and two children.

Office Location
1521 E. Tangerine Rd. | Suite 131
Oro Valley, AZ 85755
(520) 901-6336

Education and Medical Training

  • Medical Degree

Rush University Medical College, Chicago, IL

  • Residency

Internal Medicine, University of California Keck School Of Medicine, Los Angeles, CA

  • Internship

Internal Medicine, University of California Keck School Of Medicine, Los Angeles, CA

  • Clinical Fellowship

Gastroenterology, Barnes-Jewish Hospital, Washington University School of Medicine, St. Louis, MO

Mark Lin, M.D.

Board-Certified Gastroenterology

northwest medical center tucson lin

Ibraheem Mizyed, M.D.

Board-Certified Gastroenterology

northwest medical center tucson mizyed

The first time Dr. Mizyed recalls being in a hospital was when a family member was a patient. Watching the care and compassion that was given helped him realize this career was a perfect fit for him. There are many different reasons one decides to become a doctor and, for him, it was simply that he wants to help others.

He chose to specialize in gastroenterology because the field is a multi-organ specialty, allowing him to treat patients with a wide variety of conditions associated with the digestive system.

Dr. Mizyed believes patients would describe him as a good listener, approachable and attentive. Every patient is unique, and his goal is to ensure patients receive the right care and feel cared for.

Outside of work, Dr. Mizyed enjoys spending time with family, basketball, fishing, exercising and watching sports.

Office Location
1871 W. Orange Grove Rd. | Suite 101
Tucson, AZ 85741
(520) 219-8342

Education and Medical Training

  • Medical Degree

University of West Indies, Kingston, Jamaica

  • Residency

Internal Medicine, University of Arizona, Tucson, AZ

  • Internship

Internal Medicine, University of Arizona, Tucson, AZ

  • Clinical Fellowship

Gastroenterology, University of Arizona, Tucson, AZ

As a gastroenterologist for more than 15 years, Dr. Safdar’s goal is to provide a high-level of care to patients. Gastroenterolgy (GI) is a technical specialty that impacts a patient’s quality of life. He appreciates the opportunity to get to know his patients, delve into how their condition affects them on a daily basis, and provide treatments that may help them take the focus off of their digestive issues and get back to a life without gastric challenges. Dr. Safdar has a special interest in treating inflammatory bowel disease (IBD), Crohn’s disease, ulcerative colitis, and general GI conditions. He is trained in advanced endoscopy including ERCP.

Dr. Safdar’s commitment is to see patients in a timely manner, conduct a thorough workup, and communicate with the patient and his/her primary care provider regarding the diagnosis and treatment plan. He is compassionate and his priority is doing what’s best for his patient.

When he’s not working, Dr. Safdar enjoys spending time with his family.

Languages spoken: English, Urdu

Office Locations

Main Office
1951 W. Grant Road | Suite 160
Tucson, AZ 85745
(520) 624-4342

Additional Clinics
Green Valley, Northwest Tucson, Sierra Vista, Nogales
(520) 624-4342

Education and Medical Training

  • Medical Degree

Allama Iqbal Medical College, University of the Punjab, Lahore, Pakistan

  • Residency

Podiatric Surgery, Internal Medicine, St. Agnes Hospital and Healthcare, Baltimore, MD

  • Internship

Internal Medicine, St. Agnes Hospital and Healthcare, Baltimore, MD

  • Clinical Fellowship

Gastroenterology, University of Arizona, Tucson, AZ Gastroenterology, St. Louis University, St. Louis, MO

Rizwan Safdar, M.D.

Board-Certified Gastroenterology

northwest medical center tucson safdar

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