Our Providers

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Joseph Castelli, M.D.

Dr. Joe Castelli practiced in Tennessee for eight years before joining Associates in Women's Health Care in 2009.

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Susan Czelusta, CNM

Susan Czelusta was born and raised in California. She attended Saint Louis University to pursue her passion in healthcare.

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Melissa Dion, MD

Dr. Melissa Dion is an obstetrician and gynecologist caring for patients at Associates in Women’s Health at 1501 Court.

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Ginger Frederiksen, MD

Dr. L. Ginger Frederiksen is a Board Certified Ob/Gyn specialist who has been in practice since 2000.

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Kristin Kruse, M.D.

Dr. Kruse has been here in Pueblo with Associates in Women’s Health Care since 2001.

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Fernando Mahmoud, M.D.

Dr. Fernando Mahmoud was born in Buenos Aires, Argentina. He moved to the United States in 2004.

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Sara Tonsing, M.D.

Dr. Sara Tonsing graduated from the College of Wooster and followed in her father's and grandfather's steps by going into medicine.

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Jennifer Roberts, CNM

Jennifer Roberts, CCNM provides care to women during the entire course of their pregnancy and postpartum.

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Amy Yuan, D.O.

Dr Yuan's goal is to provide a comfortable and safe space to address sensitive issues for women in the Pueblo.