About Us
Murray A. Cotter, MD,PhD
Dr. Cotter grew up in the Detroit area, spending summers here in idyllic Emmet county of northern lower Michigan. After thirteen years of training at the University of Michigan in Ann Arbor where he received his BS, MD, and PhD degrees, Dr. Cotter took his residency training in Dermatology at the University of Utah in Salt Lake City. He subsequently completed a fellowship in Mohs surgery and cosmetic dermatology at the University of California at San Francisco (UCSF). Dr. Cotter is board-certified in dermatology by the American Board of Dermatology, and is a fellow of the American Academy of Dermatology, the American Society for Dermatologic Surgery, and the American College of Mohs Surgery. Dr. Cotter is the author of numerous scientific publications, textbook chapters, and holds a US patent.
Dr. Cotter adheres to what he believes is the Golden rule of medicine: treat everyone as if they were your own mother, father, brother or sister. In his spare time, Dr. Cotter is an avid road and mountain cyclist and enjoys skiing, snowboarding, hiking, yoga, traveling and reading. He and his wife Jennifer are actively involved in the Petoskey local community and also enjoy tending to the needs of the office mascot, Sydney the Bichon Frise.
Back to TopLisa K. Bowersox, PA-C
“When I spend time with my patients, I have two goals in mind. The first is to be an attentive listener so I can better understand the concerns they have regarding their skin condition, and the second is to provide compassionate care. I treat all my patients the same way I would treat a friend or member of my own family. That’s why I try and communicate in a relaxed manner so patients feel at ease and can easily express their concerns. My hope is that everyone who comes to see us will have a positive experience. Sharing a smile, some laughter or just taking the time to catch up is often a part of the office visit. Sometimes it’s the small things that we do for our patients that have the biggest impact. That and the high quality of care they receive are what I hope they remember.”
Originally from Iowa, Lisa graduated from the University of Iowa with a Batchelor of Science degree. She then moved to Michigan, where she has resided ever since. She completed her Masters degree at Central Michigan University in Physician Assistant Studies with a specialized emphasis in Dermatology. Along with working in the Emergency Department at Sparrow Hospital in Lansing, she spent the first two years of her Dermatology career practicing in East Lansing at Doctor’s Approach Dermatology. She has been practicing at Dermatology Associates since 2005. Lisa’s professional memberships include the American Academy of Physician Assistants (AAPA), Michigan Academy of Physician Assistants (MAPA), Society of Dermatology Physician Assistants (SDPA) and the Michigan Dermatology Physician Assistants (MiDPA). She maintains her NCCPA national certification by regularly attending professional conferences and completing continuing medical education courses to remain current on important issues affecting Dermatology today. In her spare time Lisa enjoys playing soccer with the Petoskey women’s soccer league, and enjoys skiing with friends and colleagues at Nubs Nob.
Back to TopTina M. Crook, PA-C
Tina attended Cental Michigan University PA program, and began her career in Family Medicine. She practiced Dermatology in Jackson, Michigan for four years prior to joining Dermatology Associates in January 2009 where she has a special interest in pediatric dermatology. Tina is married to another PA, Bill, originally from Charlevoix and they are happy to have been able to move back to Northern Michigan. She has a daughter, Adel who is 3 and a son Owen who is 16 months old. Tina enjoys spending time with her family, kayaking and gardening.
Back to TopDeanna Geisler, PA-C
Deanna Geisler is an accomplished Physician Assistant who has specialized in Dermatology since 1992. She graduated from Western University with a Bachelor of Science Degree in Medicine and is experienced in dermatological surgeries, procedures and diagnosis as well as cosmetic skin care and procedures. She is a teacher, author and speaker in the cosmetic field. She uses her experience and knowledge to guide her in proper treatment plans that are individualized for each person.
Deanna has spent her career in Southfield Michigan and is excited to join Dermatology Associates of Northern Michigan, P.C. in beautiful Petoskey. She has always loved Northern Michigan and is excited to be here to serve Northern Michigan and the greater community.
We are pleased to welcome her into the practice!
Back to TopSarah Kenney
Sarah began her career in Esthetics in 2009, when she decided to go back to school. She had discovered her passion for skin care while working closely with other estheticians. As her love grew, she decided to pursue esthetics as her profession and attended school to earn her degree and become a licensed Esthetician. Sarah then spent a summer working at the Inn at Bay Harbor, but always knew that her interest lied more to the medical side. She was chosen to join our team at Dermatology Associates of Northern Michigan because of her experience in this field, and we are happy to offer her knowledge and skill in skin care and laser treatments to our clients.
Sarah is specially trained in lasers, Glytone medical skin care, pharmaceutical grade skin care products, and skin analysis. You will enjoy the warmth and love she shows in making your skin care problems a thing of the past! If you have any questions please call Sarah at 231- 487-2230.
Back to TopThe Dermatology Associates of Northern Michigan Team
The Dermatology Associates of Northern Michigan, P.C. serves our patients with a team approach. We hope to exceed your expectations while providing you with the highest quality of patient care.