Get to Know Our Practice

Cape Cod Internal Medicine has been in business for more than 10 years. Over the better part of the last decade, we have perfected our methods, taken on the latest, most-sophisticated technologies, and delivered the most exceptional results to all our patients.

The secret to our success? It must be our happy clients!

“We listen to what our clients want and give them the best treatments and experience possible,” says Cheryl Heinzmann RN, Medical Aesthetics Nurse and Laser Specialist.

We specialize in non-invasive and minimally invasive, anti-aging skin and body treatments, including: laser hair removal, photo-rejuvenation (which removes brown spots and sun damage), laser skin tightening (for loose and sagging skin anywhere on the face or body), non-ablative laser skin resurfacing for fine lines, wrinkles and collagen remodeling, laser spider vein removal, chemical peels and pharmaceutical-grade skin care. We also offer additional, safe, effective treatments, including Botox, Dermal fillers and CoolSculpting to help you sculpt your body better than simply a strict diet and regular exercise.

“We are proud of the results and happy faces we see. Men and women who have cosmetic procedures at Cape Cod Internal Medicine notice the difference right away. We know what works and what doesn’t,” says Mary Anne Fenney RN, co-owner and manager. “Patients love Cheryl (Heinzmann). She is enthusiastic about what she does, and prides herself on staying current with her education on the newest and best products to make sure that clients are happy with their results.”

The Laser Aesthetics Team

Meet the Laser Aesthetics Cape Cod team and get to know them. Our team of professionals are here to assist you every step of the way. Ultimately it’s your decision on the service you’d like and our team of doctors and staff will guide you through the process and make sure you understand everything there is to know about the service.


Doctor William Fenney, MD

Doctor William Fenney MD is a graduate of New York Medical College and the University of Guadalajara. He completed a critical care fellowship in Boston. He is Board Certified in Internal Medicine and certified in Laser Technology. Doctor Fenney has been practicing on Cape Cod since 1985.

Cheryl Heinzmann, RN

Our Medical Aesthetic Nurse and laser skin care specialist, obtained her Bachelor's Degree in Nursing from the University of Connecticut, and her Skin and Aesthetic Certification from Spa Tech Institute’s School of Aesthetics. She is an expert in Botox and Dermal Filler administration. She has advanced certifications from Allergan Aesthetics, Merz Aesthetics, Esthetic Skin Institute, Aesthetic Advancements, and P.A.L E.T.T.E.  Cheryl has over 10 years experience in the Aesthetic industry and performs these treatments on a daily basis. She also has advanced certification in CoolSculpting, and has received Laser Therapy Certifications from Cutera and Cynosure. 

In The News


For more information about our practice, or to schedule your own personalized appointment with us, please call Cape Cod Internal Medicine at 508-778-6363.