CLINICIANS
North Florissant Location
Affinia Healthcare provides trusted health services through highly qualified and dedicated professionals at our locations. These clinicians, working alongside our dedicated staff and volunteers, have received their training and certifications from some of the most highly regarded programs in the nation.
Dr. Jessica Norton
OB/GYN, Assistant Director, Reproductive Health
Dr. Jessica Norton, originally from Chicago, Ill., earned her bachelor’s in Psychology from Yale University and doctorate degree in Medicine from Boston University. She returned to the Midwest for her OB/GYN residency training at Barnes Hospital/Washington University. Dr. Norton is a member of Alpha Omega Alpha, the medical honor society, and has received several awards throughout her time in medical school and residency. Her residency research was on the impact of Group Prenatal Care, which Affinia Healthcare offers and is a leader in this space.
Dr. Sravya Motheramgari
Family Medicine
Dr. Motheramgari earned her bachelor's degree from the University of Michigan studied medicine at Michigan State University. She completed her residency at Saint Louis University. A native of Canton, Mich., Dr. Motheramgari uses her expertise to provide patients the knowledge to make the best choices in managing their health.
Annie Way
Nurse Practitioner – Internal Medicine
Annie Way, NP, received her bachelor's and doctoral degrees from the University of Missouri-St. Louis. She initially went to school for art but felt her happiest when helping people.
Larissa Venhaus
Nurse Practitioner – Women’s Health
Larissa Venhaus, NP, received her undergraduate degree from the University of Cincinnati. She chose to work in medicine because caring for others brings her joy.
Kathleen Guerrein
Nurse Practitioner – Pediatrics
Kathleen Guerrein, RN, MSN, ARNP, received her undergraduate degree from Maryville University and her master's from Saint Louis University. She is Board Certified in Pediatrics.
Dr. Devon Camp
Pediatrics
Dr. Camp earned her bachelor’s degree at Dartmouth College in New Hampshire. A native of St. Louis, she returned home to attend Washington University School of Medicine. She completed her residency at Washington University/Saint Louis Children's Hospital. Dr. Camp chose to work with Affinia Healthcare so that she could give back to the St. Louis community and work with other people who share her values and priorities in medicine.
Jessica Craig
Licensed Clinical Social Worker
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Biography to come.
Dr. Jevinne Khan
Chiropractor
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Biography to come.
Rebekah Hassler, CNM, MSN
Certified Nurse-Midwife
Rebekah earned her bachelor’s and master’s degrees in Nursing at Saint Louis University. She also has a post master’s in CNM from Frontier School of Midwifery and Family Nursing. Rebekah, who originally hails from Ft. Smith, Ark., also has a master’s certification in Spiritual Direction at Aquinas School of Theology. She also has an Advanced Evaluation & Management of Psychiatric Illness in Reproductive-Age Women certification through the ACNM Program. Rebekah says her goal is to make a difference for the better in patient's lives.
Dr. Reesa Mercado
Dentist
Dr. Mercado earned her bachelor's degree Southern Illinois University-Edwardsville and studied dentistry at Southern Illinois University School of Dental Medicine. She chose dentistry because she wanted to have a positive impact when it comes to restoring oral health, educating and improving patient's overall well-being.
Dr. Erin Williams
Dentist
Dr. Erin Williams received her bachelor’s degree from Alabama State University and her doctorate in Dental Surgery from the University of Missouri-Kansas City School of Dentistry in 2013. Dr. Williams is a first-generation dentist in her family. After graduating from UMKC School of Dentistry, Dr. Williams felt it was essential to further her education. She then went on to do an Advance Education in General Dentistry Residency at the University of Tennessee Health Science Center in Memphis.
Outside of work, Dr. Williams enjoys traveling, snorkeling, exploring new restaurants, and spending time with family and friends.
Outside of work, Dr. Williams enjoys traveling, snorkeling, exploring new restaurants, and spending time with family and friends.
Dr. Fady Boules
Dentist
Dr. Boules earned his bachelor's degree from Maryville University, and then went on to receive his doctorate in Dental Medicine from A.T. Still University Missouri School of Dentistry & Oral Health. He is passionate about saving teeth, taking pain away, and rebuilding healthy mouths. When he is not taking care of patients, he enjoys exercising, listening to music, and spending time with family and friends.
Abbi Piper, RDH
Dental Hygienist
Abbi has been a Registered Dental Hygienist for 13 years.

