Our Staff

Dr. Mark A. Cohen works hard every day to ensure that all of his patients receive the most advanced treatment from the most compassionate caregivers.

Mohs surgery has become the standard, and most effective, treatment for most types of skin cancer. But not all physicians offering the procedure have completed a fellowship in the precise surgical technique. Dr. Cohen has, because he is dedicated to providing the very best care to his patients. 

Dr. Cohen serves as the Director of Dermatologic Surgery for the University of Kansas School of Medicine. His other professional accomplishments include being recognized as a Fellow of the American College of Mohs Surgery and the American Academy of Dermatology. He is board certified and a diplomate of the American Board of Dermatology, and his papers have been published in peer-review journals. 

Dr. Cohen began his private practice in Miami before moving back home to Kansas City to found the Kansas City Skin & Cancer Center. As the Center grows, Dr. Cohen remains dedicated to serving each patient.

A native of Kansas City, Dr. Cohen graduated from the University of Kansas School of Medicine. He served his residency at the University of Miami Department of Dermatology, where he received the outstanding resident in surgery award. 


A Wisconsin native, Dr. Schoofs graduated from the University of Wisconsin and the Medical College of Wisconsin. She completed her dermatology residency and dermatopathology fellowship at the Mayo Clinic in Rochester, Minnesota, where she served as chief resident. While there, she received awards for excellence in patient care, education, and research.

Dr. Schoofs began private practice in Minneapolis before moving to her husband’s hometown of Kansas City and joining Dr. Cohen. 

Dr. Kimberly R. Schoofs brings an impressive record of patient care and academic research to her role as partner at the Kansas City Skin & Cancer Center.

Dr. Schoofs is a Fellow of the American Academy of Dermatology and the American Society of Dermatopathology. She is a board-certified dermatologist and dermatopathologist. Her papers have been published in peer-reviewed journals, and she has given presentations at both national and international academic conferences. Dr. Schoofs was named “Best Dermatologist” by Best of the Northland 2013. 

Dr. Schoofs appreciates the variety brought to each day through her work in general dermatology, cosmetic dermatology, and dermatopathology. That appreciation results in the very best care for her patients.


Leavenworth, Kansas, Dr. Xie was valedictorian at Leavenworth High School. She earned her undergraduate degree in Human Biology from Stanford University. At Stanford, she was in the top 10% of her class and was inducted into the prestigious Phi Beta Kappa Honors Society. 

Dr. Xie obtained her medical degree from the University of Michigan and graduated with Distinction. While there, she was involved with numerous organizations, like Medical Student Council, for which she served as president. 

Dr. Xie completed her dermatology residency at the University of Michigan. Faculty members selected her to serve as chief resident. She also won several awards for excellence in patient care, medical student education, and research. 

Dr. Xie is a Fellow of the American Academy of Dermatology and is a board-certified dermatologist. She practices general, medical, and surgical dermatology. 

Dr. Xie is excited to be back in the Kansas City area.

Dr. Wenfei Xie (pronounced Wen-fee Shay), M.D., provides top-notch, compassionate, and personalized care for all of her patients. A native of


Dr. Courtney (Green) Book, M.D., is a board certified dermatologist and Mohs surgeon who strives to provide every patient with compassionate care of the highest caliber.

She completed her internal medicine internship and dermatology residency at Wake Forest University in North Carolina, where she was selected to serve on the hospital’s Resident Advisory Committee.


Upon the completion of her dermatology residency, Dr. Book completed an accredited Mohs surgery fellowship with Scripps Clinic in La Jolla, California, under surgeon Dr. Hugh Greenway, a direct protégé of Dr. Frederick Mohs (for whom Mohs surgery is named). Additionally, she received extensive training in phlebology (the branch of medicine focused on veins and diseases of veins), and laser and cosmetic dermatology.


Dr. Book is a fellow of the American Academy of Dermatology, diplomate of the American Board of Lymphatic and Venous Medicine, associate member of the American College of Mohs Surgery and member of the American Society for Laser Medicine and Surgery. Her work has been presented at national meetings and published in textbooks and peer-reviewed journals.


Dr. Book is excited to be back in the Midwest and eager to provide exceptional care for the patients of Kansas City Skin & Cancer Center.

A native of Boonville, Missouri, Dr. Book received her undergraduate and medical degrees from the University of Missouri, where she was inducted into the Omicron Delta Kappa and Sigma Rho Sigma honorary societies.

Tammy Cummins Grosserode is a physician assistant certified by the National Commission on Certification of Physician Assistants. She has more than 12 years of experience working as a dermatology P.A. 

After graduating from the University of Nebraska at Kearney summa cum laude, Tammy completed her physician assistant studies with distinction at the University of Nebraska College of Medicine. She then worked at the University of Nebraska Medical Center Department of Dermatology for more than 5 years. She also practiced dermatology P.A. in Tulsa, OK. 

A graduate of Liberty High School, Tammy returned to Missouri in 2004. She is a member of the American Academy of Physician Assistants, the Society of Dermatology Physician Assistants, and Kansas City Dermatology. 

Tammy practices general medical dermatology, performing general skin exams, skin cancer screenings, biopsies, and minor dermatologic procedures. She enjoys educating patients about their conditions and treatment plans.

Emily Redmond is a certified physician assistant. Emily graduated from Saint Louis University in 2004 with a master’s degree in physician assistant studies. She has worked in dermatology for several years and joined Dr. Cohen at Kansas City Skin & Cancer Center in January 2009.

Emily provides a broad range of dermatological services including evaluations of skin cancer, acne, and eczema. She enjoys treating and educating her patients, helping them to manage their chronic skin conditions and improve their quality of life.

Barbara Delcore is a board-certified family nurse practitioner with advanced training in the field of dermatology. Barbara joined Kansas City Skin & Cancer Center in 2008 and has over ten years of experience in dermatology.


She sees patients of all ages, with a broad range of acute and chronic skin conditions, including acne, eczema, and psoriasis. She frequently performs skin cancer screenings for people who have a history of skin cancer or are at risk for developing one (history of sunburns, tanning bed usage and/or family history of skin cancer).


She takes great pride in helping patients achieve satisfaction with their skin.

Charity Slayton, a board certified nurse practitioner, received a Master of Science in nursing from the University of Missouri-Kansas City. 

As a dermatology N.P., Charity is trained to diagnose and treat a variety of acute and chronic dermatological disorders affecting the skin, hair, and nails. 

Charity is a member of the American Association of Nurse Practitioners, the American Academy of Dermatology Nurse Practitioners, and the Dermatology Nurses Association.

Charity is passionate about patient education regarding skin cancer and preventative behaviors. In addition to her work at the Kansas City Skin and Cancer Center, she volunteers to provide free skin cancer screenings to the community. She also speaks at local health fairs and conventions about skin cancer and prevention. 

Mary Zahau-Loehner is a board certified nurse practitioner. Mary received a Master of Science in nursing from the University of Missouri-Kansas City. She has provided dermatology services for several years and joined Dr. Cohen at Kansas City Skin & Cancer Center in 2011.

Mary is trained to evaluate, diagnose, and treat acute and chronic skin diseases including acne, eczema, and psoriasis. She can provide a total body skin exam for skin cancer screenings and perform biopsies and minor procedures. 

Mary takes pride in providing first-rate, compassionate care. 

Aesthetician Ashley Roth works personally with each of her patients to design an individualized skin care program. Sometimes, that means advocating smart lifestyle choices – a healthy diet or limiting sun exposure. Other times, it can mean a blend of products and treatments chosen specifically to suit the patient’s complexion needs. 

Ashley graduated from the Heritage College Esthetics program and has remained dedicated to staying up-to-date with the latest products and procedures. She brings an unmatched knowledge of products, including Image, SkinMedica, and Glytone brands. 

Ashley is certified on the Center’s state-of-the-art lasers, and she has advanced training for a wide range of procedures, including microdermabrasion, chemical peels, laser hair removal, intense pulsed light (IPL), mineral makeup, and waxing. Kansas City Skin & Cancer Center is fortunate to have such a committed professional as its in-house aesthetician.

Morgan Pohlman graduated from Marinello School of Beauty. She has in-depth knowledge of skincare lines such as Glytone, Avene, Colorescience, and Skinceuticals.

Morgan specializes in anti-aging and acne treatments and is also certified in facial services, chemical peels, dermaplaning, Hydrafacials, laser hair removal, intense pulse light, micro-needling, waxing, lash and brow tinting, and radio frequency treatments. 

Morgan enjoys helping her patients feel great about themselves and their skin, and she believes putting together a skincare plan for each patient puts them one step closer to achieving beautiful, healthy skin.

phone 816.584.8100

fax 816.584.8106