Founder, Medical Director

Dr. Gustav Lo, MD

During his 30 year career as a Primary Care Physician, Dr. Lo first applied regenerative medical techniques such as PRP injections to orthopedic cases in the early 2000’s; following those successes, he then brought similar techniques to our aesthetic practice. Our results mirrored the research findings in other centers – regenerative techniques can reverse some degenerative conditions and “youthify” our tissues and physiology. With that, he founded RegenCen (a separate division of CSLC) in two northern Michigan locations as a treatment center focused on helping patients age better. RegenCen merges the most proven regenerative therapies with bioidentical hormone programs for men and women, tackling some of the biggest impediments to living well over 50. Dr. Lo earned his undergraduate degree from the University of Michigan and his MD from Michigan State University. He founded Northern Michigan MedCenter primary care and urgent care centers, operating them for 30 years with over 1 million total patient visits. Since 2009, Dr. Lo has offered treatments at CSLC in liposuction and laser surgery. He has performed over 4000 liposuction procedures in Petoskey and Traverse City and thousands of Laser Lift treatments for aging. The remainder of his professional time as a physician is at RegenCen. He continues seeing patients and offering general anti-aging therapies and regenerative treatments for specific conditions like  erectile dysfunction, arthritis/tendinitis and male testosterone replacement, was well as supervising our Physician Associates who specialize in women’s care. Under Dr. Lo’s guidance and supervision, RegenCen also began to offer a results-proven prescription weight loss program with semagutide, or Ozempic, and the Skinny Shot as well as NAD+ therapy to help patients lose unwanted weight and keep it off. As regenerative medicine continues to advance, Dr. Lo and his team are dedicated to the “youthification” of our clients, bringing exciting, scientifically proven treatments to patients in Traverse City and Petoskey who want to look, feel, and live better at every stage of life.

Medical Lead, Hormone Optimization, Certified Empower, BHRT

Anna Cox, NP-C

Anna treats patients full time in our Traverse City and Petoskey location. Anna received her RN and MSN at Michigan State University. After her board certification as a Nurse Practitioner, Anna spent 6 years practicing in women’s health and family practice prior to joining RegenCen.

Anna is certified in Biote Pellets and helps men and women with hormone optimization and NAD+ infusions. She also provides regenerative platelet-rich fibrin (PRF) joint injections and tendonitis treatments, hair rejuvenation treatments, and vaginal rejuvenation. She supervises the weight loss program in Traverse City and Petoskey.

Anna immediately puts patients at ease with her warm, outgoing personality. Her favorite part of her job? “After years of hearing women discuss the disheartening changes that happen with childbirth, menopause, and aging, I feel so fortunate to offer treatments for dryness, bladder control, and sexual changes that work. Women are so grateful to feel normal again.”

In her free time, Anna enjoys sailing on her Sunfish and photography.

Certified Empower Vaginal Rejuvenation Specialist

Kolleen Werly, PA-C

Kolleen knew she’d found her career calling here when she met an advancing, experienced group of medical and aesthetic clinicians who offer clinical treatments to help people live better, look better and feel better. “I walked in to my dream job,” she says.

As CSLC and RegenCen’s Medical Lead and a Physician Associate in Traverse City, she thrives on educating patients on new techniques, products and procedures that help them reach their goals.

Kolleen offers Empower vaginal rejuvenation and PRF / PRP injections for both  orthopedic conditions and hair loss. And she also specializes in feminine rejuvenation treatments for vaginal dryness and bladder control.

“The most satisfying part of working with patients is seeing how minor changes in a person’s appearance can have such a measurable impact on their happiness and self-esteem,” she says. “And RegenCen improves daily life in a very similar way. When women eliminate stress incontinence and elevate life in the bedroom – those are game changers.”

Medical Lead, Hormone Optimization, BHRT, Certified Empower Specialist

Amanda Rapanos, PA-C

Amanda is our Medical Lead Physician Associate in the Petoskey office. After working as a PA at an OB-GYN and medical spa center in lower Michigan, Amanda brought her experience to Northern Michigan and joined CSLC and RegenCen.

She’s passionate about collaborating with patients to create personalized treatment plans that incorporate the most up-to-date techniques and treatments – as well as evidence-based medicine – to help them meet their aesthetic and regenerative goals.

Amanda offers consultations on hormones replacement and education on pellet therapy. She performs all treatments at RegenCen including PRF injections for thinning hair, arthritic and orthopedic injections, and pelvic floor treatments.

“The health and happiness of my patients is my top priority,” she says.

A Central Michigan University Bachelors and Masters degree graduate, Amanda is a Midland, MI native, and is excited to now call Petoskey, Michigan her home.

InMode Empower Specialist and Oh! Shot Provider

Ambyr Thompson, LPN

At RegenCen, Ambyr provides patient education and treatments for stress and urge incontinence and vaginal dryness. Every day she is filled with enthusiasm and reminding her teammates “how effective and life changing these vaginal treatments are – even for women in their 80s.” Ambyr has worked with Dr. Lo in his primary care practice and continues to assist him in laser liposuction. Her comprehensive experience in all facets of medicine and innate talent to connect with everyone immediately put patients at ease. Ambyr is experienced and certified in InMode women’s health technology and hair loss treatments. Ambyr is most excited to be part of a collaborative team that thrives on helping people improve their health and well-being at any age.

Doctor of Nursing Practictitioner

Shauna Stark, DNP-BC

Bio coming soon!

Aesthetician, Phlebotomist, Certified Empower & Oh! Shot Specialist

Sarah, MA

At RegenCen, Sarah provides PRF and PRP injections for hair rejuvenation, treatments for bladder control, and vaginal rejuvenation alongside our Physician Associates and MD.

Sarah has been a familiar face at our aesthetic clinic, CSLC, since 2008. Now she provides treatments to look and feel better in both of our divisions.  Her attention to detail and calming demeanor will immediately put you at ease. And she can help you tweak or transform pretty much any annoyance from head to toe.

She’s always had a special interest in overall health and wellness, so working with a team dedicated to the same goals is what she values most about her career. Sarah enjoys time at home with her husband, pets, and three beautiful children.