Meet Our Doctors
Fort Wayne Neurological Center has one of the largest and most experienced practices in the region. Our staff—skilled in dozens of specialties—works together to ensure quality care and successful recoveries.
Isa Canavati, M.D., F.A.C.S.
Dr. Canavati attended American University, Beirut, Lebanon, where he acquired his M.D. He completed residencies at Mayo Clinic, Rochester, MN, and Johns Hopkins Hospital, Baltimore, Maryland, and the University of California, San Francisco. He is a Fellow of the American College of Surgeons (FACS). Dr. Canavati specializes in neurosurgery.
Jeffrey K. Kachmann, M.D.
Dr. Kachmann received his M.D. from Indiana University, Indianapolis, IN. He completed his internship at Case Western Reserve Hospital, Cleveland, OH. Dr. Kachmann completed his residencies at the University of Kansas Medical Center, and at Thomas Jefferson University in Philadelphia, PA. In addition he completed a fellowship in neurosurgery at New York University Hospital, New York, NY. Dr. Kachmann specializes in neurosurgery with emphasis on complex spine disorders including instrumentation, craniofacial reconstruction, pituitary disorders and brain tumors.
Loi K. Phuong, M.D., F.A.C.S.
Dr. Phuong received his medical degree from the University of California at Irvine following an undergraduate degree from California State University at Los Angeles. Dr. Phuong completed his neurosurgery residency at the Mayo Clinic in Rochester, Minnesota. In addition, he completed a fellowship in molecular medicine at Mayo. Dr. Phuong is a Fellow of the American College of Surgeons (FACS).
Ian White, M.D.
Dr. Ian White, a native of Hawaii, graduated from Wheaton College in Illinois and Saint Louis University School of Medicine in St. Louis. He completed his residence at Indiana University Health in Indianapolis. With specialties in complex spine surgery, minimally invasive spine surgery and neuro-oncology, Dr. White works closely with other professionals to do what they truly believe is in the patient’s best interest. Dr. White enjoys participating in outdoor sports, especially ice hockey, golf and tennis, and is learning to water-ski. He and his fiancée also enjoy traveling and learning about other cultures, as well as picking up new recipes and cooking tips from abroad.
April Christlieb, P.A.-C.
Ms. Christlieb serves as physician assistant in neurosurgery. Her undergraduate degree was earned in Biology at University of St. Francis in Fort Wayne, Indiana. Ms. Christlieb completed her Physician Assistant Studies at Butler University/Clarian Health in Indianapolis, Indiana. She is board-certified as a physician assistant.
Amy Sutton, MSN, FNP-C
Ms. Sutton serves as a Nurse Practitioner in neurosurgery. She obtained her undergraduate degree in nursing from the University of St. Francis in Fort Wayne, Indiana. Her Master of Science in Nursing degree was completed at Indiana Wesleyan University. Ms. Sutton has a background in surgery and is a Board Certified Family Nurse Practitioner.
Matthew Connor, MSN, AGACNP-BC
Mr. Connor serves as a Nurse Practitioner in neurosurgery. He obtained his undergraduate degree in nursing from Indiana University – Purdue University Indianapolis, Indiana. He obtained his associates degree in nursing from Indiana University – Purdue University Fort Wayne, Indiana. His Master of Science in Nursing degree was completed at the University of Southern Indiana, Evansville. Mr. Connor has a background in trauma and general surgery and is a Board Certified Acute Care Nurse Practitioner. He also serves in the U.S Army Reserves.
James C. Stevens, M.D., F.A.S.M.
Neurologist / Sleep Disorders
Dr. Stevens has been a private practicing neurologist and specialist in sleep disorders medicine at the Fort Wayne Neurological Center for the past 30years. He received his medical degree from the Indiana University School of Medicine, where he graduated at the top of his class, receiving AOA honors his junior year. He completed his neurology resident training at Indiana University where he was a multi-year recipient of the Alexander Ross Award for outstanding neurologic research. He currently serves as a Professor of Neurology for the IUSM and is currently serving as President-elect of AAN. In addition, Dr. Stevens has been recognized annually as one the “Best Doctors in America”, and has been a recipient of the “Patients Choice Award” since 2008 as one of the outstanding physicians in the United States, and has received multi-year recognition as the “Top Doc” in Neurology by the Fort Wayne Journal Gazette.
Madhav H. Bhat, M.D.
Neurologist / Neurorehabilitation / General Adult Neurology
Dr. Bhat received his M.D. from the University of Bombay, Bombay, India. He completed residencies at St. Louis University, St. Louis, MO, and BYL Nair Hospital, Bombay, India, and at Hurley Medical Center, Flint, MI. He specializes in neurology and neurorehabilitation.
Thomas M. Banas, M.D., M.S.
Neurologist / Movement Disorders
Dr. Banas received a masters of biomedical engineering degree from Case Western Reserve University, Cleveland, and then pursued his medical degree from the University of Cincinnati. He completed his residency at the University of Cincinnati Medical Center. He specializes in neurology with special interests in spasticity and movement disorders.
Ajay Gupta, M.D.
Neurologist / Multiple Sclerosis
Dr. Gupta received his medical training at MP Shah Medical College in Jamnagar, India. His residency in neurology was accomplished at the Medical College of Ohio, Toledo, Ohio. Dr. Gupta furthered his professional training after his residency by completing dual fellowships in electroencephalography/ epilepsy and in multiple sclerosis/ neuro immunology at the Medical College of Ohio and at the National Institute of Health in Bethesda, Maryland.
Marlene C. Bultemeyer, M.D.
Neurology / Epilepsy
Dr. Bultemeyer received her M.D. from the Indiana University School of Medicine in Indianapolis, Indiana. She continued at the I.U. Medical Center to complete her general Neurology Residency. Continuing her professional training she accomplished a Fellowship in Neurophysiology at Indiana University, Indianapolis as well. Through the Fellowship she received advanced training in Epilepsy and associated EEG testing protocols. Dr. Bultemeyer is Board Board Certified in Neurology and Epilepsy, and a member of the American Academy of Neurology.
Andrea L. Haller, M.D.
Dr. Andrea Haller grew up in New Haven, Connecticut. She earned her Bachelor’s degree from Harvard University in 1990, after which she taught organic chemistry to post-baccalaureate pre-medical students for three years. In 1993 she moved across the country to study medicine at the University of California, San Francisco, graduating in 1997 with honors. Dr. Haller also completed her internship and neurology residency at the University of California. Dr. Haller is board certified in neurology and sleep medicine. Her interests in the field of neurology are broad, and she enjoys working with patients of all ages with a wide variety of neurological illnesses.
Natalie Manalo, M.D.
Dr. Natalie Manalo graduated from Tulane University in New Orleans, Louisiana State University School of Medicine in Shreveport and completed her residency at Northwestern University in Evanston, Ill., where she also did a fellowship in sleep medicine. Dr. Manolo also completed a fellowship in autoimmune neurology at Harvard University. In her free time, Dr. Manalo enjoys spending time with her family, including husband JP, baby Marco and dog Ralph, as well as reading, running, interior decorating and ballet.
Karen Springer, M.S., N.P.-C.
Nurse Practitioner / Movement Disorders
Ms. Springer serves as nurse practitioner, building upon her extensive background as a registered nurse with FWNC focusing on Parkinson’s and spasticity, and also general neurology. She specialized in Deep Brain Stimulator programming and Intrathecal Baclofen Pump Management. Her undergraduate degrees are from Lutheran Health Professionals and Ball State University. Ms. Springer received her Master’s Degree from Ball State University. She is a Board Certified Nurse Practitioner.
Stacy L. Miranda, MSN, FNP-C
Nurse Practitioner / Rehabilitation
Ms. Miranda serves as nurse practitioner in neurology, building upon her background as a registered nurse with focusing on rehabilitation patients. Her undergraduate degree in Nursing was earned at Purdue University, West Lafayette, Indiana. Ms. Miranda completed a master’s degree in nursing and is a family nurse practitioner.
Pamela McMaster, MSN, FNP-C
Nurse Practitioner / Rehabilitation
Pamela graduated cum laude with her Bachelor of Nursing Science degree from the University of Toledo and Master of Science and Family Nurse Practitioner degree from the University of Saint Francis in Fort Wayne. She has worked in the medical field for over 24 years in a variety of areas including pediatrics, geriatrics, infectious disease, oncology and hospice. She is board certified by the American Nurse Credentialing Center.
Erin Richmond, MSN, FNP-C
Ms. Richmond serves as nurse practitioner in neurology, building upon her background as a registered nurse in orthopedics as well as her experience as a nurse practitioner working in family medicine. She earned both her undergraduate and graduate degrees from Purdue University. She is certified by the American Academy of Nurse Practitioners.
Julie Hall, MSN, FNP-C
Julie Hall serves as a nurse practitioner in Neurology building on her extensive background in Otolaryngology and Physical Medicine and Rehabilitation. She earned her Masters of Science degree in Nursing from Indiana Wesleyan University in Marion, Indiana. Her Bachelor of Science in Nursing was earned at St. Joseph’s College in Rensselaer, Indiana. She is Board Certified from the ANCC as a Family Nurse Practitioner.
David J. Lutz, M.D., F.A.A.P.M.R.
Physical Medicine / Rehabilitation
Dr. David Lutz received his medical degree and graduated with academic honors from the Brody School of Medicine, part of the University of North Carolina Health System in Greenville, NC. His undergraduate degree was earned in chemical engineering from North Carolina State University in Raleigh, NC, where he graduated Summa Cum Laude. Dr. Lutz finished his residency in Physical Medicine and Rehabilitation at the Brody School of Medicine, where he was also chief resident. In addition, he completed postgraduate work at the Mayo Clinic in Rochester, MN. Dr. Lutz is double board certified in both Physical Medicine & Rehabilitation and in the field of Pain Medicine and is one of the original Board of Directors of the Indiana Pain Society. Dr. Lutz’s practice focuses on the non-surgical care of the spine, pain, and musculoskeletal problems.
Jennifer Ritchie, MSN, FNP-C
Ms. Ritchie graduated magna cum laude with her Bachelor of Science in Nursing degree as well as her Master of Science and Family Nurse Practitioner degree from Union University. Ms. Ritchie serves as a Nurse Practitioner in Physical Medicine and Rehabilitation, building upon her 15-year background as a registered nurse in medical-surgical nursing, urology and as a certified nephrology nurse as well as a Family Nurse Practitioner in family medicine. She is certified by the American Academy of Nurse Practitioners.
Don Shook, CEO
Don Shook joined API / Ft. Wayne Neurological Center in March of 2017 as the CEO of API. He brings more than 35 years of healthcare administration and practice management to API. He completed his Bachelor’s Degree in business at Lawrence Technological University in 1978 and his MBA at Notre Dame in 1990. He has worked in a financial and administrative role for hospital employed physicians groups and privately held groups as well.