Our Team

Denise Duhon, M.D.
Dr. Duhon earned her medical degree from the Louisiana State University School of Medicine in 1986. She completed internal medicine residency training at Baylor College of Medicine in Houston, Texas. Dr. Duhon is board-certified by the American Board of Internal Medicine.

Dr. Duhon has practiced internal medicine with Riverside since 1994, finding it exciting to see new and improved treatments develop over the years. She hopes to see increasingly effective prevention and treatment for dementia, diabetes, obesity and infectious diseases.

As an internist, Dr. Duhon loves the wide range of patients and illnesses that she is able to treat. Her goal is to make every patient’s life better and, as a Christian, to do her job in a way that pleases her ultimate “boss.”

Dwight C. Herbert, M.D.
Dr. HerbertDr. Herbert earned his medical degree from the Howard University College of Medicine in Washington, D.C. He completed residency training in family medicine at Riverside Regional Medical Center in Newport News. Dr. Herbert is board-certified by the American Board of Family Medicine.

An interest in caring for the entire patient rather than one part of the body led Dr. Herbert to begin practicing family medicine over 20 years ago. Seeking to understand each unique patient and personalize office visits, he intentionally takes an ongoing interest in his patients’ lives. He strives to be a patient advocate while providing complete transparency regarding medical care. Dr. Herbert also serves as chief of Riverside Medical Group’s primary care service line.

Kenneth W. Putland, M.D.
Dr. PutlandAfter earning his medical degree from the University of Miami Miller School of Medicine, Dr. Putland completed family medicine residency training with Portsmouth Family Medicine in 1991. He is board-certified by the American Board of Family Medicine.

Dr. Putland has practiced family medicine with Riverside since 1994, enjoying the opportunity to establish long-term relationships with his patients.
 

Kimberly Ratcliffe, M.D.
Dr. Ratcliffe graduated from Tulane University School of Medicine and completed her internship and residency at the Tripler Army Medical Center in 1997. She is board-certified in internal medicine by the American Board of Internal Medicine.

 

 

Mark Souther, M.D.
Dr. Souther earned his medical degree from the University of Missouri Columbia School of Medicine in 1990. He completed internal medicine residency training with A.B. Chandler Medical Center and the University of Kentucky. Dr. Souther is board-certified by the American Board of Internal Medicine.

In practice with Riverside since 1994, Dr. Souther is an experienced internist who specializes in the prevention, detection and treatment of illnesses in adults. He is trained to manage particularly complex and multi-system disease conditions, including both acute and chronic illness. Dr. Souther’s medical philosophy is to not only look for illness, but also to ultimately find good health for his patients.

Kevin P. Wolf, D.O. Dr. Wolf
Dr. Wolf earned his medical degree from the Philadelphia College of Osteopathic Medicine before completing a family medicine residency with Susquehanna Health in Williamsport, Pennsylvania. He is board-certified in osteopathy and allopathy by the American Osteopathic Board of Family Physicians and the American Board of Family Medicine.

Enjoying the variety of challenges presented by treating all age groups and a diverse range of disease, Dr. Wolf is excited by the opportunity to promote healthy lifestyles through long-term relationships with his patients. He believes that the most important thing he can do as a family medicine provider is to ensure that those relationships are built on honesty, trust and collaboration.

Specializing in routine women's health and contraceptive care, weight management, sports medicine, and general health promotion, Dr. Wolf anticipates the upcoming incorporation of wearable and personal health technology to aid in evaluation, treatment and monitoring of disease.