Meet our Resident Physicians

River Ridge Dermatology is committed to providing the best possible skin care. We stay at the forefront of medical developments, and are actively engaged in educating the next generation of dermatologists—working with them to incorporate the newest technologies and treatments into our practice.

That’s why we proudly participate in the LewisGale Hospital Montgomery Graduate Medical Education program. Having recently completed rigorous medical education programs, resident physicians bring innovative practices and methodologies to the field of dermatology and to our patients.

We look forward to working with them to expand our services and provide the best medical care.

Karla Guerra, D.O.

A photo of Dr. Karla Guerra

Campbell University School of Osteopathic Medicine

Dr. Guerra is from Santurce, Puerto Rico, and attended medical school in North Carolina. “I love that dermatology allows me to follow patients from the time they’re very young into older age,” she says. Dr. Guerra also enjoys the variety that practicing dermatology brings – from saving lives by removing melanoma with Mohs surgery to improving quality of life with acne treatment.

Fun fact about Dr. Guerra: She loves cooking arroz con gandules, a traditional Puerto Rican beans and rice dish, with her husband and son.

Abby Russell, D.O.

A photo of Abby Russell

Edward Via College of Osteopathic Medicine (VCOM)

Dr. Russell is from Chattanooga, TN and attended medical school in Blacksburg. She decided to go into dermatology because she loves helping people treat skin conditions they don’t think can be improved. “Patients try all sorts of things at home to get rid of what they’re suffering from,” she says. “When they finally come to the dermatologist, they’re met with a variety of treatments they didn’t know were possible.”

Fun fact about Dr. Russell: She was a yoga teacher while she was in medical school. Power yoga is her favorite.

Samantha Sternad, D.O.

A photo of Dr. Samantha Sternad

Edward Via College of Osteopathic Medicine (VCOM-VA)

Dr. Sternad is from Delafield, Wisconsin and attended medical school in Blacksburg. She became interested in dermatology while in college when her mother was diagnosed with melanoma. She has seen the impact dermatology has had on people in her life and wants to help make a difference in others’ lives too. “I love that we can help people feel healthy, beautiful, and confident in their own skin,” she says.

Fun fact about Dr. Sternad: She worked as a financial analyst for a Fortune 500 company before starting medical school.

Amanda Johns, D.O.

A photo of Dr. Amanda Johns

West Virginia School of Osteopathic Medicine (WVSOM)

Dr. Johns is from Charleston, West Virginia and attended medical school in Lewisburg, West Virginia. She was drawn to dermatology because of the variety of conditions and diseases that present on the skin. She also loves that dermatology allows her to create a long lasting relationship with her patients. “It is rewarding as a physician to be able to clear my patients’ skin, prevent skin cancer, or make a skin cancer diagnosis that could be life-saving.”

Fun fact about Dr. Johns: She played college soccer and enjoys discovering new hiking trails and waterfalls to explore with her rescue dog, Bear.

Luke Godwin, D.O.

A photo of Dr. Godwin

Campbell University School of Osteopathic Medicine

Dr. Godwin is from Fayetteville, North Carolina and attended medical school at Campbell University. Struggling with hand warts as a child spurred his interest dermatology. “I love the variety that dermatology brings,” he says. “I get to treat patients with concerns ranging from alopecia to skin cancer to autoimmune diseases, and to help patients look and feel their best with cosmetic skincare services and procedures.”

Fun fact about Dr. Godwin: He played drums in varsity band.

Tyler Long, D.O.

A photo of Dr. Long

Lake Erie College of Osteopathic Medicine, Erie

Dr. Long was born in Arkansas and raised in Orlando, Florida. He attended medical school at Lake Erie College of Osteopathic Medicine. Dr. Long first became interested in dermatology during a rotation with a family friend, who was also a Mohs surgeon. “Dermatologists are some of the most versatile physicians,” he says. “We specialize in pathology, medicine, and surgery. It is very gratifying to be a one-stop-shop for patients’ skincare.”

Fun fact about Dr. Long: At 6’5”, many people expect him to be a basketball player. Instead, he’s a swimmer!