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Italo Biaggioni, MD, Professor of Medicine and Pharmacology; Associate Director of Clinical Research Center

Research Interests- Adenosine, nitric oxide, and autonomic interactions in cardiovascular regulation. 

Patient Care Interests- Autonomic Dysfunction, Orthostatic Hypotension, and Syncope.

Fellowship- Vanderbilt University Medical Center, 1977
Residency- Universidad Cayetano Heredia, Perú
Post-Graduate Training- Vanderbilt University Medical Center
Internship- Universidad Peruana Cayetano Heredia, Perú
M.D. Degree- Universidad Peruana Cayetano Heredia, Perú, 1978


davidDavid Robertson, MD, Emeritus Professor of Medicine, Pharmacology, and Neurology

Founder of the Autonomic Dysfunction Center

Former Director of the Autonomic Dysfunction Center and the Clinical Research Center

Former Director of the Center for Space Physiology & Medicine and the Center for Molecular Neuroscience

Fellowship- Vanderbilt University Medical Center, 1977
Residency- Johns Hopkins University Hospital, 1975
Internship- Johns Hopkins University Hospital, 1974
M.D. Degree- Vanderbilt University, 1973


cyndyaCyndya Shibao, MD, MSCI, FAHA, FAAS, Associate  Professor, Department of Medicine, Division of Clinical Pharmacology

Research Interests- Treatment of neurogenic orhtostatic hypotension, norepinephrine transporter inhibitors, Racial Difference in Autonomic Contribution to Hypertension in Obesity, Autonomic Contribution to Energy Metabolism, Clinical Trials in Neurogenic Orthostatic Hypotension and Postprandial Hypotension, Comparative Effectiveness and Safety in Orthostatic Hypotension Drugs, and epidemiology of orthostatic hypotension.

Residency- Internal Medicine Residency Program Research Pathway, Vanderbilt University, 2008
Internship- Internal Medicine Residency Program Research Pathway, Vanderbilt University, 2007
Research Fellowship- Division of Clinical Pharmacology, Vanderbilt University, 2003
M.D. Degree- Universidad Peruana Cayetano Heredia, Perú, 2001
Bachelor of Human Medicine- Universidad Peruana Cayetano Heredia, Perú, 2001

Board Certification- Internal Medicine, 2009


amandaAmanda C. Peltier, MD, MSAssociate Professor of Neurology and Medicine

Research Interests: Peripheral Neuropathy, Diabetic Neuropathy, Amyloid Neuropathy, Autonomic Disorders, and Identification of secondary endpoints for clinical trials in neuropathy.


MS- University of Michigan, 2005
Fellowship- University of Michigan, 2005
Internship- University of Michigan, 1998-1999
MD- Ohio State University , 1998
BA- Denison University, 1994


muldowneyJames (Huck) Muldowney III, MD, Assistant Professor of Medicine, Division of Cardiology

Patient Care Interests- Postural Orthostatic Tachycardia Syndrome, Syncope, Inappropriate Sinus Tachycardia, Autonomic Failure, Autonomic Function Testing, Tilt Table Testing, General Cardiology, Transesophageal Echocardiography, and anticoagulation therapy.


Fellowship- Vanderbilt University Medical Center, 2006
Residency- Hospital of the University of Pennsylvania,  2001
Internship- Hospital of the University of Pennsylvania, 2000
MD- Vanderbilt University, 1999

Board Certifications 

Echocardiography- National Board of Echocardiography, 2011
Cardiovascular Diseases- American Board of Internal Medicine, 2006



Ralf C. Habermann, MD, MMHC, Assitant Professor of Medicine, Division of Geriatric Medicine, Autonomic Dysfunction Center & Tennessee Valley Healthcare System Nashville campus; Medical Director, Bethany Center for Rehabilitation and Healing, Vanderbilt Primary Care Village, Kindred Hospice, and Mur-Ci Homes. 

Patient Care Interests- Geriatric medicine, palliative care, rehabilitation and healing, and autonomic dysfunction.

Fellowship- Vanderbilt University Medical Center, 2000
Residency- Rhode Island Hospital, Brown University, 1995
MD- Freie Universitat Berling, Germany
Master of Management Healthcare- Vanderbilt University


MorganeMorgane Giesecke, MSN, FNP-C

Morgane graduated with high honors from the State University of New York at Plattsburgh with her bachelor's degree in nursing. She started working in an ICU and later moved to KY where she worked as a cardiac ICU nurse providing care to critically-ill cardiac patients and patients post-open heart surgery. During this time, she also received her critical care certification. As a nurse, she was involved in numerous activities to promote nursing education and patient care. 

Morgane moved to Nashville with her family and later graduated with high honors and a Master of Science in the Family Nurse Practitioner program. She is certified as a Family Nurse Practitioner through the American Association of Nurse Practitioners (AANP). She is also a member of the AANP and the American Autonomic Society. 

MSN- Frontier Nursing University, KY
BS- State University of New York at Plattsburgh, NY

luisLuis Okamoto, MD, Research Assistant Professor

Research Interests- Role of the autonomic nervous system in splanchnic capacitance and circadian rhythms, pathophysiology and treatment of Supine Hypertension and Orthostatic Hypotension in Autonomic Failure, Postural Orthostatic Tachycardia Syndrome, and Chronic Fatigue Syndrome.

Fellowship- Division of Clinical Pharmacology, Vanderbilt University Medical Center, 2007
MD- Universidad Peruana Cayetano Heredia, Perú, 2001
Bachelor of Human Medicine- Universidad Peruana Cayetano Heredia, Perú, 2001 


andreAndré Diedrich, MD, PhD, Research Professor of Medicine & Biochemical Engineering, Paul Dudley White International Scholar

Research Interests- Autonomic nervous system, autonomic cardiovascular control, blood pressure regulation, and muscle sympathetic neural activity.

Fellowship- Vanderbilt University, Nashville, TN, 1997                          Fellowship- European Space Agency, Visiting Scientist Virginia Commonwealth  University, 1996                                                                            Fellowship- European Space Agency, Visiting Scientist Virginia Commonwealth University, 1996
PhD- Charite Hospital, Humboldt University, Berlin Germany, 1991          Residency- Charite Hospital, Humboldt University Berlin Germany, 1990  Internship- Charite Hospital, Humboldt University, Berlin Germany, 1986 Medical Cybernetics- 2nd Medical Institute in Moscow, Russia, 1985 
MD- 2nd Medical Institute in Moscow, Russia, 1985                                           BA- Mathematics and Physics, Martin Luther University, Halle, Germany, 1979

Licensure/Certification                                                                                            Dipl. Mediziner (MD), Germany                                                                                    Dr. med (PhD), Germany

Award                                                                                                                          Paul Dudley White International Scholar, American Heart Association, Joint Hypertension Scientific Sessions, 2018


emilyEmily M. Garland, PhD, MSCI,  

Research Associate Professor, Clinical Pharmacology

Research interests- The autonomic nervous system, dopamine, dopamine-beta-hydroxylase, blood pressure regulation and blood volume.

MSCI- Vanderbilt University, 2005
PhD- University of Maryland, Biochemical Pharmacology, 1982

BSDuke University, Psychology, 1973


a gamboa

Alfredo Gamboa, MD, MSCI, FAHA, Research Assistant Professor of Medicine

Research Interests- Interactions between the autonomic nervous system and nitric oxide in the regulation of blood pressure in normal physiology and disease states, and the impact of increased sympathetic activity on impaired nitric oxide function as seen in obesity-associated Hypertension.

MSCIVanderbilt University, 2008
Fellowship- Vanderbilt University, 2002 - 2005
Visiting ScholarOxford University. UK, 2001 - 2002
M.D. DegreeUniversidad Peruana Cayetano Heredia, Perú, 1999
InternshipHospital Cayetano Heredia, Perú, 1996 - 1998
Bachelor of Human MedicineUniversidad Peruana Cayetano Heredia, Lima Perú, 1998


 Adjunct Faculty

amyAmy Arnold, PhD, Research Instructor

Research InterestsThe altered role of peptide neurotransmitters and receptors in the neural control of the circulation in conditions associated with autonomic dysfunction.

PhD- Wake Forest University, 2009
BS- Pacific University, 2004


Rose M. Robertson, MD, FACC, FAHA, Professor of Medicine and Obstetrics & Gynecology, Vanderbilt University School of Medicine; Chief Science Officer, American Heart Association

Research interests- Autonomic nervous system, autonomic cardiovascular control, blood pressure regulation, Syncope, neurodegenerative disease, ethnic differences in cardiovascular control, and cardiovascular disease in women.