The medical providers at Valley Dermatology have the medical training and experience to diagnose and treat a wide variety of skin conditions. They treat conditions related to the skin, hair, and nails. From simple rashes to serious multisystem concerns, your skin concerns will be addressed. Our providers use gold standard, up to date dermatological care guidelines to manage patients. The dermatology providers at Valley Dermatology also perform surgery according to the needs of their patients. This can be done for malignant conditions such as proven skin cancers to ensure clearance but can also be done for unwanted benign moles, skin tags, cysts, as well as other benign growths.
Dermatology & Aesthetics
COMMON CONDITIONS TREATED
Dermatology & Aesthetics Services
Call 541-734-9030 to schedule an appointment.
Medical Dermatology
Skin Conditions
Skin Cancer Types
Cancer vs. Benign Skin Surgery
Medical Dermatology Treatments
Meet Our Providers
Our Dermatology providers have decades of combined experience in the fields of Dermatology. They provide patients with the highest possible level of dermatological care.

Mariana Cooper, PA-C has been a Physician Assistant in the Rogue Valley since 2006. She completed her medical training at the University of Washington MEDEX PA program within the UW School of Medicine. She is board-certified in general medicine through the NCC PA. In addition to years in the field of dermatology, Mariana has completed the Diplomat Fellowship program with the Society of Dermatology Physician Assistants (SDPA) and maintains a certification. She is also certified and trained in cosmetic dermatology as well as laser procedures.
Prior to starting in the field of dermatology, Mariana worked in family medicine, functional medicine, gastroenterology and urgent care and therefore has a wide breadth of experience from which she uses for the care of her dermatology patients.
She chose the field of dermatology specifically because of the perfect combination of the science of medicine, patient education, her level of surgery and a particular eye for cosmetic outcome.
In her free time, Marina enjoys spending time with her family, watching soccer, doing outdoor activities and traveling as much as possible.

Tim MacCurdy PA-C, has been a Physician Assistant for 24 years. He completed his undergraduate Bachelors of Science from UC Berkeley, and later completed his PA training through the UC Davis School of Medicine PA Program. He completed a Master’s Degree in Emergency Medicine through the University of Nebraska. Timothy is also board certified through the NCCPA.
He began his career in ‘tumor orthopedics’/general orthopedics, progressing into neurosurgery and other surgical subspecialties. He simultaneously spent a decade in emergency medicine before turning his attention to medical/surgical dermatology in 2007. The dermatologic specialty has provided a perfect match in which he combines his medical skills with his scientific knowledge, visual analysis, patient education, and insistence on best cosmetic outcomes.
In his spare time, Tim likes to read medical journals, gardening, cycling, and spending simple time with his family.