About Us

Florencia Halperin, MD

Florencia Halperin, MD

Chief Medical Officer

Dr. Halperin is an endocrinologist who completed her training at Harvard Medical School. Before joining Form, she was Co-Director of the Center for Weight Management and Metabolic Surgery at Brigham and Women’s Hospital. Dr. Halperin is passionate about helping people lose weight as a way to better their health. She has been selected as a Castle Connolly America's Top Doctor and Boston Magazine Top Doctor for several years, including 2020.

Kirsten Frederiksen, MD 

Kirsten Frederiksen, MD 

Director of Clinical Operations

Dr. Frederiksen completed her clinical training at the University of Rochester and the University of Colorado. She has a Masters degree from the Harvard Chan School of Public Health.Before joining Form Health, she practiced Internal Medicine for over twenty years and started  two successful medical weight management programs. She is a diplomate of the American Board of Obesity Medicine. She believes strongly in providing patients with an individualized  approach to weight loss, along with a great patient experience.

Michelle Cao, MD

Michelle Cao, MD

Dr. Michelle Cao completed her residency at the University of California, San Diego and her fellowship in Obesity Medicine at the University of Texas, Houston. She is board certified in Family Medicine and a diplomate of the American Board of Obesity Medicine. Dr. Cao emphasizes collaboration with patients in treating obesity to improve overall health.

 Chowdhury Ferdous, MD

Chowdhury Ferdous, MD

Dr. Chowdhury S Ferdous completed residency in Internal Medicine at Louisiana State University Health Science Center. She then completed a specialized fellowship at Geisinger Medical Center to become an Obesity Medicine specialist, and is a diplomate of the American Board of Obesity Medicine. Her philosophy is that obesity is a complex disease and requires a multi-modal approach, including an expert support team. She believes in positive thinking, healthy nutrition, practicing mindfulness and relieving everyday stress by techniques such as meditation. She also believes in advanced, cutting-edge pharmacotherapy when obesity seems to have become resistant to lifestyle changes.

Priya P. Joshi, MD

Priya P. Joshi, MD

Dr. Priya P. Joshi completed her residency at Boston University Medical Center and is board certified in Internal Medicine. She pursued obesity medicine within her former primary care practice and is a diplomate of the American Board of Obesity Medicine. Dr. Joshi offers a personalized approach to weight management with a focus on improving one’s overall health while encouraging weight loss through lifestyle modification and medication.

Katia Jean-Baptiste, DO

Katia Jean-Baptiste, DO

Dr. Jean Baptiste completed her medical training at Nova Southeastern University. She is board certified in Family Medicine and a diplomate of the American Board of Obesity Medicine. She is passionate about health, wellness and promoting lifelong changes and preventing obesity associated diseases; and helping others discover their passion and happiness throughout their wellness journey for long-term success.

Sarita Golikeri, MD

Sarita Golikeri, MD

Dr. Sarita Golikeri studied at the University of Chicago and St. George's University in Granada. She completed her training at Somerset Medical Center in New Jersey and a geriatric medicine fellowship at the University of Pittsburgh. Before joining Form Health, Dr. Golikeri had her own medical practice and served as an Assistant Professor in Geriatrics at the Edward Via College of Osteopathic Medicine in Virginia. She is a Diplomate of the American Board of Obesity Medicine. She has demonstrated expertise for and is board-certified in Culinary Medicine, an emerging field of medicine that seeks to prevent and manage chronic disease and promote healthy lifestyles through cooking.

Nam Kim, MD

Nam Kim, MD

Dr. Kim completed a combined military-civilian residency at Wright Patterson Air Force Base in Dayton, Ohio. He is board certified in Internal Medicine, a diplomate of the American Board of Obesity Medicine, and served 6 years active duty in the United States Air Force. Dr. Kim carries degrees in biochemical engineering and computer science. He believes that the right patient-centered tools and evidenced-based practices can best assist patients in their weight loss journeys.

Lauren Lemieux, MD

Lauren Lemieux, MD

Dr. Lauren Lemieux completed her Internal Medicine residency and fellowship in Clinical Nutrition at UCLA. She is board certified in Internal Medicine and diplomate of the American Board of Obesity Medicine, and as a Physician Nutrition Specialist. She is also a fellow of the American College of Physicians. Dr. Lemieux is passionate about helping her patients reach their health goals using personalized nutrition, lifestyle and weight management strategies.

Elizabeth Lowden, MD

Elizabeth Lowden, MD

Dr. Lowden is an endocrinologist who completed her clinical training at Northwestern University in Chicago, IL. She is dual-board certified in Endocrinology, Diabetes, and Metabolism as well as Internal Medicine. She is also a diplomate of the American Board of Obesity Medicine. Dr. Lowden supports individualized care while considering all facets of a patient's lifestyle and health. She is passionate about helping patients achieve their health goals and improve metabolic diseases.

Maria Maldonado, MD

Maria Maldonado, MD

Dr. Maldonado completed her clinical training at New York Presbyterian/Cornell Medical Center.  She is board certified in Internal Medicine and a diplomate of the American Board of Obesity Medicine.  She is also a Certified Health and Wellness Coach and is passionate about partnering with people in their journey toward their desired lifestyle and health goals.

Beth Marshall-Bergman, DO

Beth Marshall-Bergman, DO

Dr. Marshall-Bergman completed her clinical training at The University of Illinois at Chicago. She is board certified in Internal Medicine and is a diplomat of the American Board of Obesity Medicine. Dr. Marshall-Bergman provides care that stems from a desire to form meaningful relationships with and improve the lives and health of her patients. She believes that successful weight management involves focusing on more than simply weight and practices collaboratively to identify and implement small, sustainable changes that help her patients achieve long term success. She has a particular interest in behavioral modification and mindfulness in relation to obesity treatment and wellness.

Brooke Marsico, PA-C

Brooke Marsico, PA-C

Brooke Marsico completed her physician assistant training at Midwestern University in 2011. She began her practice in the field of Obesity Medicine at Northwestern Memorial Hospital in Chicago where she practiced from 2016 to 2021. She went on to treat patients living with obesity at Cleveland Clinic from 2021 to 2022 prior to joining the team at Form Health. Brooke is passionate about helping patients living with obesity achieve meaningful weight loss and improve their health. Her practice focuses on individualized behavioral and pharmacological intervention to help patients reach their goals. She is also experienced in managing patients who have a history of bariatric surgery.

Dr. Gule-Rana Masood, MD

Dr. Gule-Rana Masood, MD

Dr. Masood completed medical school in Pakistan, then completed her training in New Jersey and New York.  She is board certified in Internal Medicine and a diplomate of the Americann Board of Obesity Medicine. She created Rochester Medical Weight Loss (RMWL), in Rochester, New York, the first medically supervised program in the area, and was instrumental in starting the Phoenix VA's Medical Bariatric Clinic. She is proud to have helped many people with their weight loss journeys and has dedicated part of her career to researching and spreading awareness in regards to the obesity epidemic. Aside from medicine, Dr. Masood enjoys traveling, exercising, and spending time with her family.

Sharlene K. Selvaratnam, MD

Sharlene K. Selvaratnam, MD

Dr. Selvaratnam completed her medical training and served as Chief Resident at the University of Massachusetts. She is board certified in Family Medicine, a diplomate of the American Board of Obesity Medicine, and has received advanced training in Cognitive Behavioral Therapy. Drawing from her expertise in all of these areas, Dr. Selvaratnam helps people transform their lifestyle and lose weight to improve their health and well-being.

Angela Simpson, MD

Angela Simpson, MD

Dr. Simpson completed a combined Internal Medicine and Pediatrics residency at University of Rochester in New York, and practiced primary care for over fifteen years. She now exclusively works in the field of obesity medicine, individualizing treatment approaches to help patients achieve their health goals. She is a diplomate of the American Board of Obesity Medicine. She loves working with patients to help them reverse and prevent weight-related disorders.

Emily Smith, MD

Emily Smith, MD

Dr. Smith completed her clinical training at Northwestern University in Chicago, Illinois. She is board certified in Internal Medicine, Endocrinology, Diabetes, & Metabolism, and a diplomate of the American Board of Obesity Medicine. Dr. Smith helps patients with a variety of underlying medical conditions improve their health through weight loss and individualized, lifestyle modifications that assist in achieving sustainable results.

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