Our Staff.


Our qualified staff is dedicated to providing you with excellent, personalized care! We understand the unique anxieties and frustrations that go along with weight loss and are committed to providing a positive and encouraging atmosphere. We look forward to meeting you!



Dr. Paul M. Rivas, MD – Founder/CEO

Dr. Paul Rivas is a sought-after specialist whose distinctive approach to weight management sets him apart from the crowd. He rejects the one-size-fits-all approach and focuses on an individualized approach to patient care. Dr. Rivas began practicing medicine in simple, rural office where he employed just one secretary and often biked to work. Within a short time, word spread about his singular approach to weight loss and brought an overwhelming number of patients through his doors. To meet extraordinary patient demand, Dr. Rivas slowly began opening more locations to provide convenient access to patients across the State of Maryland. Dr. Rivas has received over 13 awards for excellence in patient care. His comments have been featured on over 50 media outlets, including radio, magazines, newspapers, and television shows. Dr. Rivas has treated nationally recognized figures and patients from across the U.S. He is the author of four well-received diet and nutrition books.

For more information about Dr. Rivas >>


DrKanerDr. Marcia A. Kane, MD 

Dr.Kane is an experienced physician who has worked closely with Dr. Rivas for many years. She is beloved by her patients for her kindness and her dedicated care. She received her B.S. Biology from Creighton University and her post-graduate training at the University of Guadalajara, Mexico. Dr. Kane then completed an internship at Franklin Square Hospital and finished up her residency at St. Agnes Hospital. Dr. Kane has a wide range of experience from her work in many different areas of medical care. She is truly passionate about instructing her patients in healthy eating habits and wellness. Dr. Kane’s favorite pastimes include needlework and travel and she is conversant in Spanish. She currently volunteers with Health Care for The Homeless.


DoctorGordonDr. Daniel Gordon, MD

Gordon received his degree from the University of Pennsylvania. He completed his residency at Harvard Medical School, Cambridge Hospital. Dr. Gordon practiced a variety of experience in the area of internal medicine before joining Dr. Rivas’ practice. Patients appreciate Dr. Gordon’s practical and honest approach to weight loss.




SophiaSophia Williams, FNP-C

Nurse Practitioner Williams is originally from Raleigh, North Carolina. She earned an Associate of Science in Nursing from Wake Technical Community College and a Bachelor of Science in Nursing from Winston-Salem State University. She has been practicing nursing since 2006. During this time she realized that she really enjoyed collaborating with physicians in diagnosing and treating patients and decided to advance to Family Nurse Practitioner. In 2015 she completed her Master of Science in Nursing with honors from East Carolina University. Following graduation, Nurse Practitioner Williams practiced primary care in Cary, North Carolina. She is a board certified provider and a member of the American Association of Nurse Practitioners.
After relocating to Frederick, Maryland in 2016, Nurse Practitioner Williams began practicing with Rivas Medical Weight Loss. As a provider who practices holistic medicine, she became increasingly concerned about the obesity epidemic and associated illnesses that occur with weight gain. She has independently studied weight management for years and successfully treated obesity in primary care. Personally, she found weight loss to be a challenge after pregnancy and lost 80 pounds using the program that she recommends to patients at Rivas Medical Weight Loss. Nurse Practitioner Williams is committed to providing compassionate, quality care to her patients while helping them achieve their health goals. She understands that every patient has a unique story and treats each patient with respect.

Nurse Practitioner Williams enjoys spending time with her two children, Jake and Kate. They love exploring the outdoors together and are active members in the community through their church. She feels blessed to be a mother and sees each stage of development as an opportunity for her to learn something new while nurturing her children through those stages. Nurse Practitioner Williams also enjoys running and reading in her spare time.

DrLindauSmallChris Lindauer, PA

Chris Lindauer began as an army medic in Fort Stewart, Georgia. With a passion for helping people, Chris received his degree from Towson University and continued on to be a Physician’s Assistant. He then worked in the areas of surgery, cardiology, and occupational health. To date, Chris has worked with Dr. Rivas for the past 12 years. In his free time, Chris enjoys traveling, gardening, and playing with his 3 dogs.



EliEli Luft

Eli Luft has been engaged in studying nutrition and weight loss since his teenage years. He received his B.S. in Biology, with a minor in Chemistry, from Florida International University. He also received a B.S. in Health Science and an M.S. in Physician Assistant Studies from Touro College, NY. Eli is diligent about staying informed on the latest scientific research related to weight loss and nutrition in order to better help his patients. He breaks down the science of health into understandable terms and translates it into practical tactics for weight loss. Eli is sought after by patients for providing unique and effective approaches that enables them to break through plateaus. His professional interests include intermittent fasting, optimized nutrition, and function medicine.


What Sets Us Apart

We understand the wide variety of choices you have when considering a weight loss plan. At Rivas Medical Weight Loss, we take a different approach to weight loss. Our experienced physicians listen to your concerns and customize a weight loss program to suit your goals. Our team will carefully monitor your progress and guide you each step of the way. We have treated over 80,000 patients with a 95% success rate! Whether you want to lose a few inches or have a lifelong struggle with obesity, we love watching you accomplish what you never dreamed possible!

Dr. Rivas’ entire team of physicians is committed to providing you with the latest in modern weight loss techniques. His staff strives to provide a caring atmosphere that allows you to achieve your personal weight loss goals in a positive environment! We offer safe, effective, and practical weight loss at an affordable price without any contracts or commitments.

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