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Home   »  About Us  »  Medical Team
Robert Allen, D.O.
Senior Physician, Adult Services

Dr. Robert Allen serves as the David Lawrence Center Senior Physician for Adult Services. He is a member of the Senior Physician Management Team and is responsible for providing administrative and clinical supervision to the adult outpatient physician team, oversees quality assurance activities, assures appropriate utilization of physician time and coverage in adult outpatient medical services and provides direct psychiatric services to adults.

Dr. Allen earned his medical degree from the College of Osteopathic Medicine and his residency in psychiatry from Rush Presbyterian St. Luke’s Medical Center both in Chicago, IL. He is a diplomat of the American Board of Psychiatry and Neurology.

Dr. Allen was previously employed by the Ruth Cooper Center in Fort Myers where he served as a Staff Psychiatrist and later as the Outpatient Medical Director. He has served as an instructor and lecturer on multiple topics pertaining to behavioral health.

In addition to his work at David Lawrence Center, Dr. Allen runs a private practice in Estero.



Ronny R. Valenzuela, M.D.
Senior Physician, Acute Care Services

Ronny R. Valenzuela, M.D. is the part-time Senior Physician for Acute Care Services. He is a member of the Senior Physician Management Team and is responsible for providing administrative and clinical supervision to the acute care physician team, oversees quality assurance activities, assures appropriate utilization of physician time and coverage on the Crisis Stabilization Unit and Detoxification Unit and provides direct psychiatric services to adults.

Dr. Valenzuela earned his medical degree from the Instituto Tecnologico de Santo Domingo in the Dominican Republic. After relocating to the United States, he completed his internship in psychiatry at the University of Miami and his residency at Jackson Memorial Hospital both in Miami, Florida.

Dr. Valenzuela has nearly 20 years of experience. He previously served as a Staff Psychiatrist for NCH Healthcare System and also has a private practice specializing in adult outpatient psychiatric services.

Dr. Valenzuela is fluent in English and Spanish.



Monica P. Robles, M.D.
Senior Physician, Children's Services

Dr. Monica Robles joined the David Lawrence Center in 2011 as the Senior Physician for Children Services. She is a member of the Senior Physician Management Team and is responsible for providing administrative and clinical supervision to the children’s outpatient physician team overseeing quality assurance activities and ensuring appropriate utilization of physician time and coverage. In addition, she provides direct psychiatric services to children.

Dr. Robles is board certified by the American Board of Psychiatry and Neurology in child, adolescent and adult psychiatry. A native of Spain, she received her doctor of medicine from the Complutense University of Madrid in Spain. She completed her residency in psychiatry followed by a fellowship in child and adolescent psychiatry at the University of Memphis in Tennessee.

Dr. Robles has had more than a decade of experience working with adults, adolescents and children in an inpatient and outpatient setting in the United States and Spain. Prior to joining the David Lawrence Center, she served as a Psychiatrist with the Ventura County Behavioral Health Center in California, the Director of Child Psychiatry at the Hannibal Regional Hospital in Missouri and as a Psychiatrist serving children and adults at a mental health center in Spain.

She is fluent in Spanish and English.



Michael A. Corbin, M.D.
Adult Staff Psychiatrist

Michael A. Corbin, M.D. is a full time Staff Psychiatrist in the Acute Care Services Department.

Dr. Corbin earned a bachelor's of science degree in Recording Industry Management from Middle Tennessee State University and a bachelor’s of arts degree in biology from University of Tennessee. He earned his medical degree from East Tennessee State University and his residency in psychiatry from Baylor College of Medicine.

He is a diplomat of the American Board of Psychiatry and Neurology.

Since 2004, Dr. Corbin has provided psychiatric services at David Lawrence Center and a variety of other treatment centers throughout Florida and Tennessee through Locum Tenens Agencies. In addition, he has had a private practice serving individuals and couples in Ft. Lauderdale since 2003. He has over 10 years of experience working in adult acute care units and working with severely and persistently mentally ill patients using an assertive community treatment team model.



Luis A. Rives, M.D.
Adult Staff Psychiatrist

Dr. Luis A. Rives joined the David Lawrence Center in 2011 as a Staff Psychiatrist in Adult Outpatient Medical Services and Urgent Care.

Dr. Rives is board certified by the American Board of Psychiatry and Neurology. He earned his bachelor’s of arts degree in chemistry and his doctor of medicine from the University of South Florida. He completed his residency in psychiatry at the University of Virginia.

Dr. Rives has more than 15 years of experience in the outpatient, inpatient and hospital treatment settings serving the adult and geriatric population. He also has experience working with individuals battling eating disorders and chemical dependency. Since 1996, Dr. Rives has been in private practice in the Naples and Ft. Myers areas. While in private practice, he has also been appointed to the medical staff of a number of local medical facilities and provided psychiatric consulting services for Lee Memorial Hospital, Manor Care Nursing Home, Southwest Regional Hospital, The Willough, Moorings Park, Lakeside Pavilion, Harborchase of Naples, Aristocrat Nursing Home and more.

Dr. Rives is fluent in English and Spanish.



Frank W. Lehninger, MD
Child and Adolescent Staff Psychiatrist

Dr. Frank W. Lehninger joined David Lawrence Center in 2011 as a Staff Psychiatrist in Children’s Outpatient Medical Services and Acute Care Services.

Dr. Lehninger is board certified in adult psychiatry, geriatric psychiatry and child and adolescent psychiatry by the American Board of Psychiatry and Neurology. A native of Germany, he earned his undergraduate degree from the University of Maryland, European Division. He received his doctor of medicine degree from Johann Wolfgang Goethe-Universitaet Fachbereich Humanmedizin in Germany. After relocating to the United States, he completed his Internship at SUNY at Buffalo, Adult Psychiatry Residency and Geriatric Psychiatry Fellowship at the University of South Florida, and Child and Adolescent Psychiatry Fellowship at the University of Florida.

Dr. Lehninger has had more than a decade of experience working with adolescents and children on an inpatient and outpatient setting having worked in private practice and community mental health. Prior to joining the David Lawrence Center, he most recently served as consulting Psychiatrist for Youth Haven and Collier County Public Schools and as a Psychiatrist for the Florida Assertive Community Treatment Team. During that time, he also worked in private practice. Prior to that, he served as the Medical Director for Inpatient Services for Coastal Behavioral Health and was a Psychiatrist for Ruth Cooper Center, Renaissance Behavioral Health and J.A. Haley Veterans Administration Hospital.

Dr. Lehninger is a member of the American Psychiatric Association, American Academy of Child and Adolescent Psychiatry and the Florida Psychiatric Society.

He is bi-lingual in English and German.



Eddy Benoit, M.D.
Adult Staff Psychiatrist

Dr. Eddy Benoit is a part-time Staff Psychiatrist in the Adult Outpatient Medical Services Department. He provides bi-lingual psychiatric medical services in Naples and Immokalee.

Dr. Benoit earned his medical degree from the Universidad Nacional Autónoma de Mexico. He completed his residency programs in psychiatry in New York at Brookdale Medical Center, Manhattan Psychiatric Center and Harlem Hospital. He received interim psychotherapy training from Columbia University and Karen Horney Institute.

Dr. Benoit has previously worked in both private practice and in the community mental health field throughout Florida including serving as a Senior Physician for G. Pierce Wood Memorial Hospital in Arcadia.

Dr. Benoit speaks fluent Spanish, French and Creole.



Oscar Villaverde, MD, CPA
Adult Staff Psychiatrist

Oscar Villaverde, MD, CPA, is a part-time Adult Staff Psychiatrist working in the Acute Care Services Department.

Dr. Villaverde earned both his bachelor's of science degree and doctor of medicine from the University of Miami. He went on to earn a master's degree in accounting from Florida International University before pursuing is residency at Jackson Memorial Hospital. Dr. Villaverde is a Diplomat of the American Board of Psychiatry and Neurology and a Certified Public Accountant.

Before joining the David Lawrence Center, he served as a Staff Psychiatrist for Miami Veterans Administration Medical Center. He also was an Affiliate Assistant Professor of Psychiatry at the Miller School of Medicine at the University of Miami.

Dr. Villaverde is an active member of the Academy of Psychosomatic Medicine, American Psychiatric Association, Florida Psychiatric Society, South Florida Psychiatric Society and the American Medical Association.

Dr. Villaverde is fluent in English and Spanish.



Evelio H. Sosa, M.D.
Adult Staff Psychiatrist

Evelio H. Sosa, M.D., is a part-time Adult Staff Psychiatrist working in the Acute Care Services Department.

Dr. Sosa earned his doctor of medicine from the University of Monterrey in Mexico. He completed his residency in psychiatry at the University of South Florida College of Medicine.

In addition to his part-time position with the David Lawrence Center, Dr. Sosa has a private practice in Coral Gables and provides outpatient psychiatric services for Leon Medical Center in Miami.

He brings with him more than 15 years of experience providing psychiatric services in an inpatient and outpatient treatment setting. Prior to joining the David Lawrence Center, he served as a Staff Psychiatrist in the Inpatient Services Department for Mental Health Incorporated Community Mental Health Clinic, Director of the Partial Hospitalization Program at Coral Gables Hospital, Director of the Inpatient Psychiatric Unit for Mercy Hospital and Director of the Partial Hospitalization Program for Health Connections.

Dr. Sosa is fluent in English and Spanish.



Amy Simko, MSN, ARNP-BC
Child and Adolescent Psychiatric Nurse Practitioner

Ms. Simko is a full-time Psychiatric Nurse Practitioner in Children’s Outpatient Medical Services. She is board certified to treat child, adolescent, and adult populations.

Ms. Simko earned a Master of Science in Nursing from Vanderbilt University, a Bachelor of Arts in Psychology from Florida International University, and a Bachelor of Science in Nursing from Florida Atlantic University. Currently she is pursuing a doctorate in Behavioral Health through Arizona State University.

Ms. Simko has worked as a behavioral health specialist for nearly 15 years. She has experience working in children’s inpatient crisis stabilization units, child residential treatment centers, psychiatric emergency rooms, as well as in private practice settings.

Ms. Simko is fluent in English and Spanish.



Jeffery Edwards, MS, RN, ARNP, CST
Advanced Registered Nurse Practioner

Jeffery Edwards is a full-time Advanced Registered Nurse Practitioner (ARNP) in the Adult Outpatient Medical Services Department. He also provides part-time services in the Acute Care Services Department. As an ARNP, he provides psychiatric evaluations, medication management and physicals for adults with mental health and substance abuse problems. He is a licensed Nurse Practitioner and a Registered Nurse and is a board certified sex therapist.

Mr. Edwards earned his bachelor’s of science degree and his master’s of science degree in nursing from the University of South Florida where he earned special certification in addiction treatment. He is a member of the Phi Kappa Phi Honor Society and Sigma Theta Tau Nursing Honor Society.

Prior to joining the David Lawrence Center, he served as an ARNP/RN for Charlotte Behavioral Health Care, Ruth Cooper Center, St. Anthony’s Hospital, Lee Memorial Hospital System and in private practice. He has more than 18 years of experience working with adults and seniors in a variety of treatment settings including inpatient crisis stabilization units, outpatient clinics, hospital based psychiatric services and private practice settings.