Spa Service Specialists

Jennifer McAlister, MD
Medical Director of Ahhh, The Spa at Tamarac
Board Certified General Surgeon

Dr. McAlister graduated from Michigan State University of Human Medicine and completed her residency at Grand Rapids Medical Education and Research Center. Dr. McAlister began her career in 2005 with Pine Medical Group, PC, in Fremont, Michigan. She is the Chief of the Professional Activities Committee at Spectrum Health Gerber Memorial.

“As a general surgeon, being able to provide benefits that can help enhance patient’s physical appearance and self-confidence is a natural progression for me,” stated McAlister. “I am excited to bring my experience and energy to this serene environment and help Ahhh continue to offer its effective, high-tech services.”

Dr. McAlister lives in Newaygo County with her husband and two children, and enjoys cooking and playing tennis.


Tricia Grundy
Skin Care Specialist
Tricia Ferguson has been an associate of Spectrum Health Gerber Memorial for several years as a licensed cosmetologist. She has received advanced training in medical esthetics with certifications in microdermabrasion, facial peels and cosmetic laser. Tricia is a member of the American Esthetics Association.

Tricia is dedicated to educating her clients and customizing treatments to help them achieve the best results. “I find the most rewarding part of my job is to see the confidence that my clients gain when skin imperfections are improved.” Tricia’s passion is to live before an audience of one.
E-mail Tricia

Irv Marcus
Acupunturist

Irv is a health educator and acupuncturist trained in Traditional Chinese Medicine. He is a graduate of Meiji College of Oriental Medicine in San Francisco where he earned his Masters of Science. Irv is a nationally board certified acupuncturist with a diplomat of acupuncture (NCCAOM). Irv uses innovative, evidenced based programming to promote health awareness and positive lifestyle change.
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Maureen Witner, AAS, NCTMB
Certified Massage Therapist

After her first massage experience, as well as learning infant massage, more than 25 years ago, Maureen was hooked! She recognized the powerful healing potential of massage. Maureen used infant massage on all of five of her children. Knowing the profound effects of massage and the mind/body connection, she is always excited about learning more in the field of massage therapy. Maureen has an associate’s degree in applied science-therapeutic massage, is certified by the National Certification Board for therapeutic massage and bodywork (NCBTMB), and is a member of the International Massage Association (IMA). She recently completed her Bachelor degree in Health Services Administration. Always pursuing new knowledge, Maureen is excited to be learning Cranial Sacral Therapy through the Upledger Institute. When she is not doing massage, Maureen enjoys spending time with her children and grandchildren, gardening, reading, cooking and enjoying West Michigan’s beauty.
E-mail Maureen

Sarah Loss, IMA
Certified Massage Therapist

Sarah is a 2005 massage therapy graduate of Muskegon Community College. She provides relaxation, hot stone, pregnancy and deep tissue massage with a focus on trigger point therapy and the effect it has on the body, as well a reflexology. Sarah enjoys learning new and exciting ways to heal the body and the mind. Sarah's passion is to give people a sound mind in a healthy body. "The most rewarding part of my job is meeting new people and being able to help them relax and rejuvenate!"
E-mail Sarah

Tamarac, a member of Spectrum Health  |  1401 West Main |  Fremont, MI 49412
Fitness: 231.924.1788  |  Physical Rehab: 231.924.3195  |  Ahhh, The Spa: 231.924.7800  |  Email

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