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. Carla Duban

Pediatrics

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Dr. Duban received a BA from Loyola University of Chicago and graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science. She completed a residency at Brooke Army Medical Center in San Antonio, TX.

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.
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Dr. Caroline Iskander

Pediatrics

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Dr. Caroline Iskander is board certified in sports medicine. She offers non-surgical orthopedic and concussion care for all ages, and at all stages of physical fitness. She can help to treat osteoarthritis, sprains, and concussions among a range of other injuries. She is proficient at joint and soft tissue injections and offers ultrasound-guide injections in knees, shoulders, hips, wrists, and fingers. She has sports medicine clinic at the North Florissant location on Thursdays.

Dr. Jessica Norton

OB/GYN

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Biography to come.​
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Larissa Venhaus

Women’s Health – Nurse Practitioner

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Biography to come.​
dr. kristia abernathy 2022

Dr. Kristia Abernathy

Family Medicine

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Biography to come.​
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Dr. Jeffrey Lin

Family Medicine

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Biography to come.​

Dr. Catherine Moore

Family Medicine

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Biography to come.​
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Dr. Dhruvee Sangani

Dentist

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Dr. Sangani earned her DDS at The UCLA School of Dentistry and completed her MPH at The University of Texas School of Public Health in Houston.
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Dr. Zheng Qian

Dentist

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Dr. Qian earned her DMD degree at Case Western Reserve University.
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Abbi Piper, RDH

Dental Hygienist

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Abbi has been a Registered Dental Hygienist for 13 years.

Rajeev John

Trauma Informed Care Manager

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Rajeev was born in India, where he earned his master’s in Social Work. He also has a MSW from Washington University. He joined Affinia Healthcare 32 years ago so that he could help people. When he’s not helping people, he enjoys traveling.
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Sonia Chase

Licensed Clinical Social Worker

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Sonia earned her bachelor’s degree from Lindenwood University, and her master’s in Social Work from Saint Louis University. A native of Jamaica (West Indies), Sonia grew up Brooklyn, NY. She loves working in a clinical environment.

Dr. Patrick Battaglia

Chiropractor

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Dr. Patrick J. Battaglia is a clinician within Logan’s Integrative Heath Centers and assistant professor of radiology in the Doctor of Chiropractic program. He earned his Doctor of Chiropractic degree from Logan University in 2012, and subsequently completed a 3-year residency in diagnostic imaging, becoming board certified in chiropractic radiology in 2016. He has also completed a 1-year fellowship in diagnostic imaging, with emphasis on ultrasound of the musculoskeletal system. Dr. Battaglia’s clinical interests include assimilating chiropractic care into traditional multidisciplinary medical settings, and implementing diagnostic ultrasound into routine musculoskeletal practice. His research interests include studying the sonoanatomy of various musculoskeletal structures, especially important structures of the arch of the foot in people with flatfoot deformity.