Our Team

We have 4 physicians, a nurse practitioner, and over 20 other team members dedicated to clinical care and research to improved lives of children and adults with histiocytic disorders. In addition to our team of specialists focused on histiocytosis, patients may see neurologists, radiologists, endocrinologists, orthopaedic surgeons, pathologists, and many other clinical and social specialists in order to receive the best possible care.


Dr. Kenneth McClain is Director of the Histiocytosis Program at Texas Children’s Cancer and Hematology Centers and a member of the leukemia and lymphoma programs. Dr. McClain and Dr. Carl Allen see 100 new patients with a variety of histiocytic diseases each year. His clinical interests include:... Read more

Address: 6701 Fannin Suite 1510.11 Houston, TX 77030 See map: Google Maps
Phone: 832-822-4208, Phone: Clinic: 832-822-4240
Along with Dr. Kenneth McClain, Dr. Carl Allen has developed the largest Histiocytosis Center in the world with over 100 new diagnoses annually. Dr. Allen graduated from Ohio State University College of Medicine and Public Health with his medical degree and doctorate of philosophy. He completed... Read more

Address: 1102 Bates Suite 750 Houston, TX 77030 See map: Google Maps
Phone: 832-824-4312


Dr. Olive Eckstein received her medical degree from the Chicago Medical School at Rosalind Franklin University of Medicine and Science and completed her residency in pediatrics at Children's Hospital Boston. Following residency, Dr. Eckstein worked as a hospitalist in the Bone Marrow Transplant... Read more

Address: 6701 Fannin Street, Suite 1510 Houston, TX 77030 See map: Google Maps
Phone: 832-824-4848

Social Work

Jackson Huynh, LMSW

Child Life

Clinic Coordinator