All Affinia Healthcare offices and health centers will be closed on Monday, February 16, 2026, in observance of President's Day.
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

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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. Catherine Moore

Family Medicine

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Biography to come.​
dr Sravya motheramgami

Dr. Sravya Motheramgari

Family Medicine

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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.
Ann Way

Annie Way

Nurse Practitioner – Internal Medicine 

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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

Larissa Venhaus

Nurse Practitioner – Women’s Health 

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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

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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

Dr. Devon Camp

Pediatrics

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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.
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Jessica Craig

Licensed Clinical Social Worker

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Biography to come.
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Dr. Jevinne Khan

Chiropractor

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Biography to come.
becky hassler cnm

Rebekah Hassler, CNM, MSN

Certified Nurse-Midwife

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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. Reesa Mercado

Dentist

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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.
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Dr. Erin Williams

Dentist

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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.
Dr fady boules

Dr. Fady Boules

Dentist

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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

Abbi Piper, RDH

Dental Hygienist

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Abbi has been a Registered Dental Hygienist for 13 years.