Karolina Woloszyn Machnica, DO, an endocrinologist at Endeavor Health, provides care for patients with hormonal and metabolic disorders, including diabetes, thyroid disease and adrenal conditions. She works closely with patients to develop individualized treatment plans that support long-term endocrine health. Dr. Machnica is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Hyperparathyroidism, Type 2 Diabetes (T2D), Familial Isolated Hyperparathyroidism, and Osteitis Fibrosa.

Katarzyna G. Zarnecki, DO, a specialist in endocrinology, diabetes & metabolism at Endeavor Health, treats a range of hormonal and metabolic disorders including thyroid disease, pituitary tumors and diabetes. She speaks English and Polish and offers advanced therapies such as insulin pump management and thyroid biopsies. Dr. Zarnecki is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Diabetic Neuropathy, Hyperparathyroidism, Type 2 Diabetes (T2D), and Diabetic Nephropathy.

Megan Crawford, DO, an endocrinologist at Endeavor Health, provides care for patients with hormonal and metabolic conditions, including diabetes, thyroid disorders and osteoporosis. She develops personalized treatment plans that support patients in managing long-term endocrine health and improving quality of life. Dr. Crawford is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Type 2 Diabetes (T2D), Hyperparathyroidism, Hypothyroidism, and Thyroid Cancer.

Dori Becker, MD, an obstetrician-gynecologist at Endeavor Health, provides patient-centered care across generations. With multiple decades of experience, she has built enduring relationships, often caring for grandmothers, mothers and their daughters. Dr. Becker involves her patients in decision-making, emphasizing transparency and trust in every step of care. Whether performing surgery or delivering a baby, she brings compassion and consistency to the circle of life. Dr. Becker is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Female Genital Sores, Vitiligo, Hydrocele, Osteopenia, and Intrauterine Device Insertion.

Ryan Kooperman, DO, an obstetrician-gynecologist at Endeavor Health, offers full-spectrum care including office visits, labor and delivery and minimally invasive gynecologic surgery. Fellowship-trained in minimally invasive techniques, he uses laparoscopic and robotic procedures to shorten recovery time and improve patient outcomes. Dr. Kooperman builds long-term relationships through shared decision-making and a supportive, honest approach that empowers patients throughout every phase of their care. Dr. Kooperman is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Amenorrhea, Vitiligo, Female Genital Sores, Carney Complex, and Intrauterine Device Insertion.

Brenda Kim, DO, an obstetrician-gynecologist at Endeavor Health, provides comprehensive care through all stages of a woman’s life. With a foundation in osteopathic medicine, she treats patients holistically—considering the mind, body and soul as one connected system. Dr. Kim is passionate about labor and delivery, calling it the most joyful and rewarding part of her work. She builds long-term relationships with her patients, many of whom return year after year, and focuses on helping them feel heard, respected and comfortable during every visit. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Female Genital Sores, Menorrhagia, Vitiligo, Premenstrual Syndrome, and Intrauterine Device Insertion.

Regan Valfer is an Obstetrics and Gynecologist in Northbrook, Illinois. Dr. Valfer is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Menorrhagia, Painful Menstrual Periods, Vulvovaginitis, Neonatal Ovarian Cyst, and Intrauterine Device Insertion.

Steven Valfer is an Obstetrics and Gynecologist in Northbrook, Illinois. Dr. Valfer is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Menopause, Pelvic Inflammatory Disease, Vulvovaginitis, and Breast Infection.

Sara Chowdhury is an Endocrinologist in Bannockburn, Illinois. Dr. Chowdhury is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Type 2 Diabetes (T2D), Thyroid Cancer, Anaplastic Thyroid Cancer, and Medullary Thyroid Carcinoma.

Maan Barhoum is an Endocrinologist in Libertyville, Illinois. Dr. Barhoum is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Thyroid Cancer, Anaplastic Thyroid Cancer, Hypercalcemia, and Milk-Alkali Syndrome.

Romy Block is an Endocrinologist in Bannockburn, Illinois. Dr. Block is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Hyperparathyroidism, Papillary Thyroid Cancer, Thyroid Cancer, and Anaplastic Thyroid Cancer.

Sarah Mccormick is an Obstetrics and Gynecologist in Vernon Hills, Illinois. Dr. Mccormick is rated as an Experienced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Gestational Diabetes, Preeclampsia, Pelvic Inflammatory Disease, and Endometrial Polyps.

Lisa P. Purdy, MD, a specialist in endocrinology, diabetes & metabolism at Endeavor Health, manages a wide range of hormonal and metabolic conditions. She treats diabetes, thyroid disorders, adrenal and calcium imbalances and endocrine complications during pregnancy. Dr. Purdy delivers care for both common and complex endocrine concerns. Dr. Purdy is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Hyperparathyroidism, and Anaplastic Thyroid Cancer.

Scott N. MacGregor, DO, a specialist in maternal fetal medicine at Endeavor Health, provides diagnostic and consultative care for high-risk pregnancies. His clinical interests include fetal diagnostics and maternal conditions in pregnancy. Dr. MacGregor offers advanced ultrasound, genetic screening and fetal procedures to support healthy outcomes. Dr. Macgregor is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Premature Infant, Placenta Previa, Methimazole Antenatal Exposure, and ABO Incompatibility.

Ian Grable, MD, a maternal fetal medicine specialist at Endeavor Health, provides care for patients experiencing high-risk pregnancies, past complications or pre-existing medical conditions. Inspired by generations of physicians in his family, Dr. Grable takes pride in offering support during some of life’s most emotionally complex and meaningful moments. He partners with patients before, during and after pregnancy to help them feel seen, supported and empowered. Dr. Grable is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Premature Infant, Placenta Previa, Methimazole Antenatal Exposure, and Gestational Diabetes.

Barrett Robinson, MD, a maternal and fetal medicine specialist at Endeavor Health, provides care for patients with high-risk pregnancies. He collaborates with referring physicians and specialists to manage complications that affect the health of the pregnant person or fetus. Dr. Robinson also supports respectful, patient-centered care and contributes to initiatives aimed at improving equity in maternal outcomes. Dr. Robinson is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Placenta Previa, Premature Infant, Gestational Diabetes, and Methimazole Antenatal Exposure.

Whitney B. You, MD, a maternal and fetal medicine specialist at Endeavor Health, provides advanced care for high-risk pregnancies. Dr. You works closely with obstetricians and patients to monitor fetal development, manage pregnancy complications and support maternal health throughout the perinatal journey. Dr. You is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Placenta Previa, Preeclampsia, Premature Infant, and Methimazole Antenatal Exposure.

Sunitha Suresh, MD, a maternal fetal medicine physician at Endeavor Health, specializes in managing high-risk pregnancies and delivering babies at Evanston Hospital. She collaborates closely with patients and their families to create individualized care plans, especially in complex or uncertain clinical situations. Dr. Suresh is also engaged in research aimed at improving targeted therapies and better understanding adverse pregnancy outcomes. Dr. Suresh is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Preeclampsia, Premature Infant, Placenta Previa, and Gestational Diabetes.

Erin Tran, MD, a maternal fetal medicine specialist at Endeavor Health, provides expert care for high-risk pregnancies. Her work focuses on supporting patients and families through complex situations with empathy, clarity and evidence-based guidance. Dr. Tran values the long-term relationships formed with her patients and often provides care across multiple pregnancies. She also serves as the program director for Endeavor Health’s maternal fetal medicine fellowship, helping train the next generation of specialists. Dr. Tran is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. Her top areas of expertise are Premature Infant, Gestational Diabetes, Placenta Previa, and ABO Incompatibility.

Mark Neerhof is a Neonatologist and an Obstetrics and Gynecologist in Evanston, Illinois. Dr. Neerhof is rated as an Advanced provider by MediFind in the treatment of Methimazole Antenatal Exposure. His top areas of expertise are Placenta Previa, Premature Infant, Gestational Diabetes, and Methimazole Antenatal Exposure.