Physicians & Staff

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Medical Oncology Specialists

Yasolatha Nalamolu,  MD

Yasolatha Nalamolu, MD**
Dr. Nalamolu is board certified in internal medicine and hematology/oncology. She treats various malignancies with special interest in breast malignancies. Dr. Nalamolu served her residency and fellowship through the Medical College of Georgia.

Dolly Rosa Quispe, MD

Dolly Rosa Quispe, MD**
Dr. Quispe is board certified in internal medicine and hematology/oncology. She has served as an assistant professor at the Feist-Weiller Cancer Center. She has a special interest in breast cancer treatment and is bilingual in both English and Spanish. Dr. Quispe served her residency at Henry Ford Hospital and her fellowship at the Louisiana State University Health Sciences Center.

Ahad Ali Sadiq, MD

Ahad Ali Sadiq, MD**
Dr. Sadiq is board certified in internal medicine and hematology/oncology with research interest in solid malignancies particularly thoracic oncology. He leads multiple clinical trials in thoracic oncology at Fort Wayne Medical Oncology and Hematology with focus on immune therapies. Dr. Sadiq served his residency at the Texas Tech University Health Science Center and fellowship at the University of Chicago.

Radiation Oncology Specialists

Nathan Comsia, MD

Nathan Comsia, MD**
Dr. Comsia completed his residency at Loyola University. Prior to residency, Dr. Comsia was involved in ground-breaking medical research that included studies on radiation therapy sponsored by the American Cancer Society.

Xiao Lin, MD, PhD

Xiao Lin, MD, PhD**
Dr. Xiao Lin joined Radiation Oncology Associates in July of 2002 after completing her residency at Mallinckrodt Institute of Radiology at Washington University Medical Center in St. Louis, Missouri. Dr. Lin was born and raised in Shanghai, China where she attended Shanghai Medical University. In 1995, Dr. Lin received her PhD in radiation biology from Florida State University. Her clinical experience includes extensive training in 3-D conformal therapy, Intensity Modulated Radiation Therapy (IMRT), low-dose and high-dose brachytherapy, interstitial and vascular brachytherapy, radiopharmaceutical therapy, prostate seed implants and stereotactic radiotherapy. Dr. Lin has interest in both adult and pediatric cancers, and she is highly involved in the IMRT program at ROA.

Mark Ranck, MD

Mark Ranck, MD**
Dr. Mark Ranck joined Radiation Oncology Associates in 2013. He received his medical degree from the Virginia Commonwealth University School of Medicine located in Richmond, Virginia. He then completed a residency in radiation oncology in the Department of Radiation and Cellular Oncology at the University of Chicago. He has presented research at several national meetings, authored numerous articles for peer-reviewed journals covering topics as diverse as the use of stereotactic body radiation therapy (SBRT) to preclinical models used in the study of head and neck cancer.

Management and Nursing Team

Hugh Gerard, CMD, RT (R)(T)

Hugh Gerard, CMD, RT (R)(T)
Hugh Gerard is the oncology director for the KCH Cancer Care Center.

Luann Deafenbaugh, FNP-BC

Luann Deafenbaugh, FNP-BC
LuAnn Deafenbaugh, FNP-BC, is a board certified nurse practitioner providing general medical care and treatment to oncology and hematology patients. She performs physical examinations and establishes diagnoses, promotes health maintenance, and provides relevant education to the patient and family. Ms. Deafenbaugh earned a bachelor of science in nursing and a master of science in nursing from Indiana Wesleyan University in Marion. Certified by the American Academy of Nurse Practitioners, she brings over 35 years of diversified nursing experience in critical care, oncology and primary care to the KCH Cancer Care Center. Deafenbaugh is also a certified oncology nurse.

Kathy MacDonald, RN

Kathy MacDonald, RN
Kathy MacDonald is the KCH Cancer Care Center nurse navigator.

Radiation Therapy Team


Jenny King, RT (R)(T)
Jenny King is board certified in radiation therapy.


Michelle Malott, BSRT (R)(T)
Michelle Malott is board certified in radiography and radiation therapy.

Breast Health Specialists

Rachael Hayes, MD

Rachael Hayes, MD*
Rachel Hayes, MD, is a breast oncology surgeon who joined Lutheran Health Physicians in 2015. Dr. Hayes graduated cum laude with honors from Otterbein College in Westerville, Ohio, with a bachelor's degree in life science, concentration in molecular biology, before earning a medical degree from the University of Louisville School of Medicine. She completed a preliminary internship in general surgery at the University of Kentucky College of Medicine in 2008, a residency in general surgery at the University of Mississippi Medical Center in 2014, and a fellowship in surgical breast oncology in 2015 at the University of Iowa, which is accredited by the Society of Surgical Oncology. Dr. Hayes is a resident member of the American Medical Association and the American College of Surgeons.

Christel Hayes, FNP

Christel Hayes, FNP***
Christel Hayes, FNP, is a breast cancer nurse practitioner who is certified by the American Academy of Nurse Practitioners. She treats various conditions of the breast including benign and malignant breast disease, breast abscesses, breast cysts, breast pain, invasive cancers and recurrent cancers. Hayes received both her bachelor and master of science degrees in nursing from Indiana Wesleyan University in Marion.

Nursing Team and Support Staff

Our nursing staff is certified by the Oncology Nursing Society and the ACLS, and is on call 24 hours, 7 days a week for cancer center patients and family questions.

* Member of the medical staff of Kosciusko Community and Lutheran hospitals.
** Independent member of the medical staff of Kosciusko Community and Lutheran hospitals.
*** Member of the Allied Health Staff of Kosciukso Community and Lutheran hospitals.