Keith Pennycook, DO
Board-Certified Dermatologist
- Medical Dermatology
- Skin Cancer / Surgical
About Dr. Pennycook
Dr. Keith Pennycook was born and raised in Troy, Mich. He graduated from Michigan State University Honors College with a degree in human biology with High Honor in 2015. Dr. Pennycook attended medical school at Michigan State University College of Osteopathic Medicine and graduated second in his class in 2019. He became interested in pursuing a career in dermatology during his clinical rotations at Michigan State. After graduating from medical school, Dr. Pennycook completed a Transitional Year Internship as the Chief Resident with Wayne State University at Ascension Providence Rochester Hospital in Rochester, Michigan.
Dr. Pennycook is a huge fan of the Michigan State Spartans, particularly the football and basketball teams. His favorite sport is college football, but he is also a big fan of the Detroit Lions, Pistons, Tigers, and Red Wings. Dr. Pennycook’s favorite hobby is golfing, and he enjoys many other outdoor activities, such as jet skiing, boating, and taking his golden retriever for a walk.
Education & Training
- Residency (Dermatology) Goodman Dermatology in Roswell, GA
- Transitional Year Internship (chief resident)Wayne State University at Ascension Providence Rochester Hospital in Rochester, MI
- Doctor of Osteopathic Medicine Michigan State University College of Osteopathic Medicine
- Bachelor of Science degree in Human Biology with High Honor in 2015Michigan State University Honors College
Insurance We Accept
Goodman Dermatology participates in most major insurance plans. We keep an up-to-date list of insurance companies in our Patient Resources section. Please contact your insurance company to confirm coverage.
“Wonderful staff with a great office atmosphere. Dr. Pennycook addressed all my concerns and was very kind. Highly recommend!”
“It was a great experience compared to my previous dermatologist. First visit. I will continue to review as visits progress”
“El doctor es una persona con un gran corazon..ya llebo 3 anos vajo su supervision y siempre que salgo de esta oficina me siento muy bien confiada y siempre lo dire no pude caer en mejores manos siempre lo recomiendo a Mis familiares y amigos 100 %”
“The staff was very nice and professional. The doctor was helpful and answered all my questions and concerns.”
“Excellent visit with Dr. Pennycook at Goodman Dermatology. He was very knowledgeable, addressing my concerns in detail, and with great bedside manner. I will be seeing him again.”
“Very friendly staff the doctor explained my diagnosis with compassion and made sure I understood my treatment and schedule of treatment before I left”
“Dr Keith Pennycook and team were fantastic. They were very thorough, personable, on time, and answered all my questions. The office was very clean and everyone there was super friendly. Great experience!”
“I cannot find better doctor than Dr Keith Pennycook, explained me very well about my condition and had very good listening ear to my skin problems. Staff is very polite and helpful. Thank you so much”
“This was my first time visiting a dermatologist and I was greeted by a warm and friendly staff. Such a caring and thorough exam. I highly recommend this office.”
“They assessed my problem and diagnosed it quickly and ordered labs and prescribed medication. Friendly, professional, prompt and thorough.”
“Good experience. On line registration was easy, appointment was on time, didn't feel like I was rushed through. Buford office was nice and convenient.”
“i was able to get an appointment in a short time after i called in. Dr. Pennycook and staff are very friendly and communicated very well throughout the exam.”
“Great customer experience. Everything was easy to get seen and communicate. Also the dr. Was great and knowledgeable. Thanks for The awesome service and feedback. - Zach nunnery”
“The staff and Dr. Pennycook were all very kind and professional. We were extremely pleased with our visit at this dermatology office!”
“Highly recommend this place, very pleasant and easy going staff that will help you with anything.”
“1st visit. I wasn't rushed. Allowed plenty of times for questions. Great experience.”
“Mr. Pennycook was very patient, caring, and professional.”
“Friendly staff and clear communication with the doctor. He provided an understandable description of my issues and listened to my concerns then recommended a treatment plan that best suited me.”
“A very Professional experience. Wait time was short, I was greeted by a very nice gentleman when i entered PA was exceptional.”
“Everyone was so professional, friendly and through. The Dr even apologized for making me wait (which was maybe 10 minutes after my appointment time). Very refreshing and I definitely recommend.”
“The office staff was very friendly and helpful. The physician was on time, answered all my questions and gave me the help I needed.”
“First time at Goodman and will recommend the practice as well as Dr. Pennycook to others.”
“Very friendly and informative! I barely waited at all and saw the doctor almost immediately. They listened to my concerns and gave a variety of treatment options.”
“I was impressed by the quick response. I had to have an excision and they explained every step of the procedure and follow up.”
“Great experience at the Goodman Dermatology, staff is very friendly and helpful”