Valley Internal Medicine and Pediatrics

Providers

Dr. Mark Webb
Dr. Mark Webb

Dr. Webb is a native of Detroit, Michigan. He moved to Arizona when his father relocated for business. He subsequently went to medical school in Tucson with residency in Phoenix for both internal medicine and pediatrics. Initially he worked for the Phoenix Indian Medical Center for 5 years before starting Valley Internal Medicine and Pediatrics in 1999. He has an interest in complex medical problems for all ages.

He has 3 grown children who reside presently in Arizona. He met his wife, Peggy, in medical school and she now practices as a clinical medical geneticist in town.

Dr. Susan Madsen
Dr. Susan Madsen

Dr. Madsen was born and raised in Chicago completing her medical school curriculum before moving to Wisconsin to complete her residency in both internal medicine and pediatrics. She did practice for 3 years before moving with her husband, Mark, to Arizona where he has continued to work as a radiologist in the southeast valley.

She has been a partner in the paractice since 2004. She handles complex medical problems of all ages. In addition, she performs well-woman care as she is uniquely qualified with her internal medicine qualifications.

Her two sons are Arizona natives and she spends a lot of her "free time" going to sporting and school events for her children.

Abigail Gerken, FNP
Abigail Gerken, FNP

Abigail is originally from New Jersey where her initial career path was in teaching. She subsequently moved to Arizona and went to nursing school where she practiced as a nurse for 10 years before completing her nurse practitioner program.

She has been a part of Valley Internal Medicine and Pediatrics since completing her nurse practitioner program. She sees all aspects of general medical care for all age groups including well-woman care. In addition, she is undergoing additional training as a behavioral health practitioner -- an additional way that she can treat the "whole" person.

Her free time is taken up with raising her 4 children with the help of her husband -- Steve -- who is the director of finance for a large company in town. She loves to keep active by running and going to the gym. If she has additional free time, it is happily spent inside of a book. The part of her career she enjoys the most is creating trusting relationships with her patients where she and her patients can work as a team to optimize health.