Weight Management Solutions Team

Hannibal Regional's Weight Management Solutions team is made up of individuals committed to guiding you on your journey to a healthy lifestyle.  Our goal is to provide excellent care and education and we have put together a comprehensive team that will be involved with your care both before and after surgery.

Mujeeb Siddiqui, DO, FACOS, FASMBS​ - Medical Director

Dr. Siddiqui graduated from Kirksville College of Osteopathic Medicine in Kirksville, MO and completed his surgical residency at Garden City Hospital in Garden City, MI. Dr. Siddiqui continued to advance his surgical training by completing Advanced Laparoscopic and Bariatric Fellowship at Harrisburg Community Hospital in Harrisburg, PA. Dr. Siddiqui has over 25 years of surgical experience, specializing in minimally invasive general surgery, bariatric surgery, and robotic surgery. Dr. Siddiqui is passionate about improving his patients’ quality of life by approaching each patient with an empathetic, honest attitude, working to create an individualized care plan that results in positive life changes.

Tori Greving, FNP-C, AOCNP - Coordinator

Tori has been a Registered Nurse for 22 years, in this time she has experience in Psychiatric care, Medical/Surgical nursing, Intensive Care, and Oncology.  For the past 6 years she has been a Nurse Practitioner in the field of Oncology.  Tori is committed to her patients and passionate about providing them the utmost care. She is excited about her new role in Bariatrics as the Coordinator, but most excited about helping patients through this journey to better their health.  Her hard work, dedication, and compassion for patient care will help mold Weight Management Solutions and all the facets into a great experience for everyone who enters the program and their support system. 

Ali Devlin, RN – Nurse

Ali began her career in nursing at Hannibal Regional in 2004, first as a Psychiatric Nurse and most recently in our Pain Management Department where she has spent the last 10 years.  As a Registered Nurse working in the specialty of Pain, Ali became dedicated to improving the quality of life for her patients.  Ali very much values the relationships she has developed with her patients and is looking forward to continuing that work in Bariatrics.   She brings over 16 years of specialty nursing experience, guiding her patients to better health.  She is excited to join the Hannibal Regional Weight Management Solutions Team, continuing work in a trusted healthcare team close to home.

Rana Reynolds, RHIT, CHDS, CHPC - Surgical Clinical Reviewer

Rana began her career on the support services side of healthcare with Hannibal Regional Healthcare System in August of 2002.  In April of 2016, just 3 months into her own weight loss journey, she left HRHS to embark on an adventure - and joined an accredited bariatric surgery program in Columbia, MO as Coordinator - Data, Metabolic & Bariatric Surgical Clinical Reviewer.  In this role, Rana found a true passion - a position that called upon her professional interests in healthcare documentation with data analytics and reporting, while at the same time providing personal motivation and gratification.  Rana understands first-hand the challenges individuals face as they embark on a journey to better health and she prides herself on making the patient experience unforgettable. 

Megan Kemp, RDN, LD, CDCES - Dietitian

Megan is the coordinator of Hannibal Regional’s Outpatient Diabetes & Nutrition Education program and part of the Weight Management Solutions multidisciplinary team. She is a registered dietitian and certified diabetes care and education specialist.

She graduated from the University of Missouri where she earned degrees in Medicinal Chemistry and Medical Dietetics. She has more than 8 years of experience working in weight management and diabetes care and completed the Certificate of Training in Obesity Interventions for Adults in 2019.

Megan is passionate about helping patients reach their individualized health goals. What she finds most rewarding as a dietitian is being part of a healthcare team that can assist patients in making lifestyle changes that improve their health, confidence and quality of life. She provides support, tools and resources that benefit patients throughout their weight loss journey.

She is a member of the Academy of Nutrition and Dietetics, the American Association of Diabetes Educators and the American Diabetes Association.

Kristy Taylor, MS, RDN, LD - Dietitian

Kristy received her bachelor’s degree in Human Environmental Studies: Dietetics from Southeast Missouri State University. Kristy attended the University of Kansas Medical Center while earning her Master of Science in Nutrition and Dietetics and completing her dietetic internship. During her time at KUMC, Kristy worked in nutrition research and community dietetics. After earning her master’s degree, she traveled as a consultant dietitian for long-term care facilities.

In April 2019, Kristy joined Hannibal Regional full-time. Here at Hannibal Regional, Kristy wears many hats. She works in many facets of nutrition, including clinical/inpatient dietetics and outpatient nutrition services in both individual and group settings.

Sara Nelson - Patient Service Representative

Sara is a Patient Service Representative with more than 15 years of medical secretary and billing experience.  Sara has worked with Hannibal Regional Medical Group since 2018, previously as a Patient Access Representative greeting and registering our patients in Express Care and Pain Management.  Sara began her career in the medical field as a Medical Assistant for an OB/GYN group in CA, continuing her path in healthcare within the areas of Medical Records, Human Resources and Home Health.