Healthcare Services and Programs

Surgeons

Dr. Thomas SonnastineThomas E. Sonnanstine, MD, FACS, FASMBS

Fellowship-trained and Board-Certified in Bariatric/Advanced Laparoscopy/General Surgery
Associate Member of the American College of Surgeons
Member of the Society of American Gastrointestinal, Endoscopic and Lapaproendoscopic Surgeons

A native of Marion, Ohio, Dr. Sonnanstine is a graduate of Case Western Reserve University in Cleveland and Northeastern Ohio Medical University, near Akron. He served his residency at OhioHealth Riverside Methodist Hospital and completed fellowship training in minimally invasive bariatric surgery at Tufts Medical Center in Boston.

Now having practiced for 9+ years, Dr. Sonnanstine has performed more than 2,500 bariatric operations. He is an internationally and nationally recognized educator, having performed or taught weight-loss procedures in eight countries and 26 states.

Dr. Sonnanstine is married and the father of three children, two of whom were born at Riverside Methodist Hospital. He returns to Riverside Methodist as the Medical Director of Bariatric Surgery and lead bariatric surgeon among the team of dietitians, psychologists, exercise physiologists and other specialists at OhioHealth Surgical and Medical Weight Management.

Dr. Sonnanstine is a specialist in laparoscopic bariatric surgeries, including gastric bypass, adjustable gastric band and gastric sleeve procedures. He brings his special interest in high-risk patients and revisions to the OhioHealth bariatric team, offering care to patients with complications or failed surgery from other programs.

Dr. Nirav RanaNirav R. Rana, MD, FACS , FASMBS

Board Certification: General Surgery
Medical School: Northeastern Ohio Universities College of Medicine
Residency: St. Vincent’s Catholic Medical Center, Manhattan
Fellowship: Cedars-Sinai Medical Center, Los Angeles

Dr. Rana is a bariatric surgeon who specializes in minimally-invasive weight loss surgery including: Laparoscopic Roux-en-Y Gastric Bypass, Sleeve Gastrectomy, Gastric Banding, and Revisional Bariatric Surgery. He is joining Dr. Sonnanstine at OhioHealth Surgical Specialists and OhioHealth Weight Management to treat patients during their weight loss journey.

Dr. Rana is a member of several professional organizations including the American College of Surgeons, American Society of Metabolic and Bariatric Surgery (ASMBS), and the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES). Dr. Rana is committed to the advancement of laparoscopic bariatric surgical techniques and patient education. He is also happy to be back treating patients in his hometown.

Physicians

Dr. Julie Stermer CantrellJulie S. Cantrell, MD

Board Certified by the American Board of Obesity Medicine
Board Certified by the American Board of Family Medicine
Medical School: The Ohio State University College of Medicine
Residency: Riverside Methodist Hospital, Columbus, Ohio
Member of the American Academy of Family Physicians
Member of the Ohio Academy of Family Physicians

Dr. Julie Cantrell attended The Ohio State University College of Medicine and completed her internship and residency in family medicine at OhioHealth Riverside Methodist Hospital. She is board-certified in family medicine and obesity medicine.

Dr. Cantrell is medical director for the OhioHealth Cardiac Rehabilitation programs in Central Ohio. She oversees management of heart patients by our cardiac rehabilitation staff. Patients with coronary artery disease, heart attack, bypass surgery, heart valve surgery, heart failure, and other heart conditions can benefit greatly from participation in cardiac rehabilitation, improving quality of life and decreasing risk of hospital readmission and progression of heart disease.

She is also the medical director for OhioHealth Medical Weight Management, overseeing patient care in our nonsurgical weight loss program. Patients who are overweight or obese can see significant health benefits from weight loss. It can improve blood pressure, cholesterol, diabetes and reduce heart disease risk. It can treat GERD, sleep apnea and arthritis pain. It can help a person to live longer and feel better on fewer medications.

She also supervises exercise stress testing for new MHHC members.

She lives in the Worthington area with her husband and three children.

"The greatest benefit that results from weight loss is not how you look in the mirror. It's the many ways your health will benefit. Weight loss can improve blood pressure, cholesterol, diabetes and reduce heart disease risk. It can treat GERD, sleep apnea and arthritis pain. It can help a person to live longer and feel better on fewer medications."

Scott Merryman, MDScott Merryman, MD

Dr. Scott Merryman is the clinical director of cardiovascular risk management at the McConnell Heart Health Center Cardiovascular Disease Prevention and Lipid Clinic. He specializes in evaluating and treating people with elevated blood lipid levels to lower their risk for heart and vascular disease. His lipid clinic at McConnell uses advanced testing methods to obtain accurate and predictive information used to guide treatment, with the goal of preventing events such as heart attack or stroke.

Dr. Merryman is board-certified in clinical lipidology and family medicine. An area of interest for him is behavioral medicine, and working collaboratively with patients to achieve their goals. Dr. Merryman attended The Ohio State University College of Medicine and completed his residency at St. Joseph Hospital in Denver, Colorado. He is a member of the National Lipid Association, the American Academy of Family Physicians and the Ohio Academy of Family Physicians. He has been named one of America’s Best Doctors® again in the 2015-2016 list. 

Psychologists

Dorienna M. Alfred, PhDDorienna M. Alfred, PhD

Licensed Psychologist in Ohio
Graduated from Indiana University with a PhD in Counseling Psychology with concentration in Applied Health Science
Fellowship: University of Missouri Counseling Center and Auburn University Department of Counseling Psychology and Counselor Education
Internship: University of Illinois, Urbana-Champaign Counseling Center
Member of the American Psychological Association
Member of the Black Women's Health Imperative
Member of the Ohio Psychological Association
Associate member of the American Society for Metabolic and Bariatric Surgery (ASMBS)

Dorienna M. Alfred, PhD, is a staff psychologist at the McConnell Heart Health Center. She provides clinical services in surgical and medical weight management, as well as cardiac rehabilitation.

Dorienna has received specialized training in bariatric psychological evaluations and treatment from the ASMBS (June 2012, November 2013, November 2014); substance abuse recovery from The Ohio State University Addiction Studies Institute (August 2011); and dialectical behavioral therapy and treatment of eating disorders from the Center for Balanced Living at The Ohio State University (April 2011). She has also given national presentations on culturally competent clinical practice in weight management at the New Directions Conference (October 2014) and the American Society for Metabolic and Bariatric Surgery (November, 2013, November 2014).

When she's not at work, Dorienna enjoys reading, exercising and spending time with family and friends.

"I try to reinforce with my patients that I know there is a medical necessity for their weight loss, a reason why they need it, and that I am here to support them and make sure they're prepared for the journey. It is my belief that with adequate support, optimal coping skills, knowledge and a commitment to better health, patients can achieve their wellness goals."

Dr. Ruth GoldbergRuth Goldberg, PhD

Licensed Psychologist in Ohio
Graduate of the Ohio State University with a Ph.D. in Counseling Psychology
Residency: Riverside Methodist Hospital
Internship: Ohio State University, University Counseling Center
Veterans Administration Traineeship:  Chillicothe Veterans Hospital and Columbus, Ohio
Member of the American Psychological Association
Member of the Ohio Psychological Association
Member of the Central Ohio Psychological Association

Ruth Goldberg, Ph.D. is a staff psychologist at the McConnell Heart Health Center and Section Chair of Psychology on the Medical Staff at Riverside Methodist Hospital.  Specializing in health psychology, she provides behavioral health services to patients and participants in programs at the McConnell Center dedicated to fostering healthy lifestyle behaviors and physical and emotional wellness including Executive Health, Medical Weight Management, Surgical Weight, and Cancer Wellness.  Counseling, psychotherapy, education, consultation and coaching services are offered to patients and clients seeking prevention of illness or behavioral management of chronic health conditions such as obesity, heart disease, cancer, traumatic injury, anxiety and depression.

When not at work, Ruth enjoys gardening, walking, meditation, and quality time with family and friends.

Tim RheinscheldTimothy Rheinscheld, PhD

Dr. Timothy Rheinscheld is a staff psychologist at the McConnell Heart Health Center (MHHC). At MHHC, he provides services in the OhioHealth Weight Management and Cardiac Rehabilitation programs. He teaches educational classes to improve psychological health and conducts psychological assessments, individual counseling and consultation to participants of the MHHC programs.

Dr. Rheinscheld has been a part of OhioHealth for over 6 years and was previously the psychologist for Work Rehabilitation and Chronic Pain Management Programs.

Dr. Rheinscheld graduated from The Ohio State University with a PhD in Psychology. He completed a two year internship in Neuropsychology and Rehabilitation Psychology at Dodd Hall Rehabilitation Center at The Ohio State University Medical Center. He has received training from the American Society of Metabolic and Bariatric Surgery (November 2013).

He enjoys reading, hiking and backpacking, and exercising.

Sonya TurnerSonya M. Turner, PsyD

Licensed Psychologist in Ohio
Graduated from the Illinois School of Professional Psychology with a PsyD in Clinical Psychology
Pre-doctoral Internship: Northwest Ohio Consortium for Internship Training in Professional Psychology (University of Toledo, Medical College of Ohio, Harbor Behavioral Healthcare)
Member of the American Psychological Association, Division 38
Member of the Ohio Psychological Association
Member of the American Society of Metabolic and Bariatric Surgery
Member of Mental Health America of Franklin County

Sonya M. Turner, PsyD, is a staff psychologist at the McConnell Heart Health Center and is on medical staff at Riverside Methodist Hospital. She provides individual and group counseling, psychological assessments and behavioral health classes to McConnell patients. She also offers behavioral health education to corporate clients. Dr. Turner works collaboratively with a multidisciplinary team of providers, including physicians, nurses, dietitians and exercise physiologists.

Dr. Turner received training at the American Society of Metabolic and Bariatric Surgery and the Institute for the Advancement of Human Behavior.

When she is not at work, Dr. Turner enjoys traveling, collecting music, reading and being active with her family.