- Office Information
Joseph Castelli, M.D.
Received his undergraduate degree with honors from Rhodes College in Memphis, Tennessee. He then completed medical school.
Alison Hastings, D.O.
Graduated from the University of New England College of Medicine in 2005. She then completed her residency in obstetrics & gynecology at the University of Connecticut in 2009.
Kristin Kruse, M.D.
Traveled the country while
serving the navy, chose to
return to Colorado to
practice gynecology and
Megan Lenhart, M.D.
Born in La Junta Dr. Lenhart moved to Texas as a young child where she completed undergraduate work at Texas Tech University.
Fernando Mahmoud, M.D.
Dr. Mahmoud recently completed a residency in obstetrics and gynecology at Mercy Hospital Medical Center.
Sara M. Tonsing, M.D.
Born and raised in Ohio. She graduated from the college of Wooster. She then followed in her father's steps by going into medicine.
Stephen Wassinger, M.D.
Joined Associates in Womens Health in 2007. Prior to coming to Pueblo Dr. Wassinger was in private practice for ten years.