Gina Theisen, FNP-C

Gina Theisen, MSN, RN, FNP-C, is a board-certified family nurse practitioner with a specialty in pulmonology. She provides care to patients age 18 years and older. With her broad base of knowledge and experience, Gina knows that many conditions are interrelated within the pulmonary specialty. She dives deep into all aspects of a patient's health to arrive at a comprehensive solution to a problem. Gina believes that compassion, respect and trust are the cornerstones for every patient and provider encounter.

SSM Health Cancer Care in Lake Saint Louis, MO, is a department of SSM Health St. Joseph Hospital - Lake Saint Louis, offering exceptional care and treatment for cancer patients. Their team of board-certified oncologists, specialists, and nurse navigators provide comprehensive services, including cancer care, hematology, radiation oncology therapy, financial counseling, and survivorship navigation. Located in the HW Koenig building, SSM Health Cancer Care is conveniently situated on the hospital campus, providing easy access to a range of medical specialties. With state-of-the-art facilities and advanced technologies like Varian TrueBeam Linear Accelerator and Image-Guided Radiation Therapy, they are dedicated to supporting patients in their journey to cancer recovery.Generated from the website

Krysta Maskey, FNP, is a nurse practitioner who specializes in rheumatology. She sees and treats patients with rheumatic and autoimmune diseases, such as arthritis, psoriatic arthritis, lupus, and gout, which affect the joints, muscles, and bones. She provides clinical expertise, diagnostic skills, therapeutic interventions, education, and counseling to help her patients better manage their chronic disease or medical condition. Krysta works with her patients to fully understand their health challenges, so she can determine the appropriate treatment that will improve not only their symptoms, but also their quality of life. Additionally, she takes her time explaining each treatment and how it can benefit her patients' care and outcomes.