Meet the Team


TyAnn Jacobsen

TyAnn Jacobsen has been a registered nurse for the past 6 years. She spent a great deal of time working in the emergency room, and spent a couple years working in a rural community hospital on a small fishing island in Southeast Alaska. She has always had a passion to help people lead better lives, and working in the emergency room helped her gain great knowledge and compassion in helping people in varying degrees of health crises. Upon starting at Davis Family Physicians Ogden Clinic TyAnn found a new passion in helping people better their lives and their health with weight loss. She enjoys supporting those who have questions about their personal nutritional plans, and brainstorming with patients on what will work best for them to achieve their goals in their overall health. TyAnn works hard to make sure the patient is involved and excited about the lifestyle changes needed to make their life healthier and more enjoyable.

TyAnn appreciates her partnership with Dr. Rigby, who is proactive about educating patients in reaching the healthiest lifestyle behaviors that support weight loss and improving their quality of life. In her spare time, TyAnn stays active with her husband and three kids. They enjoy all types of recreational activities that keep them busy and outside.



Crystal McFadden

Crystal McFadden started with the Ogden Clinic Medical Weight Loss team in August of 2018. Crystal has been a nurse for almost 5 years. She worked in emergency care before starting with Ogden Clinic. She is married and has a 5 year old and year old twins. Crystal enjoys educating patients on the different components of weight loss and helping people make better diet choices. In her spare time she enjoys spending time with her family and friends, hiking, swimming, and watching shows on Netflix with her husband. She also has a German Shepard named Berlin that goes hiking with her. Crystal is excited for her new role as an educator at Ogden Clinic and helping patients to feel better about themselves.





Katie White

Katie is the Marketing Coordinator for Ogden Clinic Medical Weight Loss. She graduated from Weber State University with a Bachelor’s in Health Services Administration in August of 2018. She began working with Dr. Rigby in May of 2018 as a student completing her internship and was hired on after graduation.

Katie is recently remarried. She and her husband have 3 children together. Katie is currently in school through Western Governor’s University for an MBA with an emphasis in Healthcare Leadership. Katie enjoys spending time with her family, learning new things and spending time outdoors



Katy Childress

Katy is a Medical Assistant of Dr. Rigby. She has worked with Ogden Clinic and Dr. Rigby for 3 years. Katy is originally from Utah. She was a competitive swimmer for high school for 4 years and has been an athlete all her life.

She enjoys the outdoors, paddle boarding, swimming, yoga, meditation, being active and spending time with her family, boyfriend Jeffrey and her German Shepherd Kona! She is very passionate about her job and helping others.



Silvia Velazquez

Silvia is from Los Angeles, California. She moved to Utah in 1998. Silvia started working at Davis Family Physicians in 2010 with Lane Heder PA-C for almost 4 years as his Medical Assistant. After working with Lane, she started working with Dr. Rohn Rigby MD. She and her family decided to move to Las Vegas for 3 years. They moved back to Utah in 2018 and joined the Ogden Clinic Weight Loss team with Jonathan Wilson FNP-C, and began her keto journey.

“In the beginning of integrating any lifestyle with keto, can be challenging and very challenging for the Hispanic culture. But I found a way to integrate all the factors and it becomes easier each day. Both Jonathan and myself are Spanish and English speaking and are looking forward to helping the Hispanic culture to find keto friendly meals. I look forward to joining my patients on this keto/ healthier lifestyle journey.”- Silvia


Brooke Bradley

Brooke has been with Ogden Clinic for almost 2 years. Out of the 2 years she has worked with Sheryl for 6 months. She love’s working with the weight loss team and seeing patient’s health improve and seeing them feel better about themselves. Brooke has two brothers, two sisters, two dogs, 1 nephew and 4 nieces. She LOVE elephants!!

Click here for a welcome letter and here for the paperwork you need to fill out prior to your first visit appointment.

Location & Contact

Davis Family Physicians
at Ogden Clinic

Request Free Information
(801) 397-6150
3225 W. Gordon Ave
Layton, UT 84041

Based in Layton, Dr. Rigby and our other Providers specialize in weight loss services for patients across Utah

Office Hours

Monday: 8 AM - 5 PM
Tuesday: 8 AM - 5 PM
Wednesday: 8 AM - 5 PM
Thursday: 8 AM - 5 PM
Friday: 8 AM - 5 PM
Saturday: Closed
Sunday: Closed

*Also closed on observed federal holidays