Our Staff

Dr. Jenn Hartmann

Dr. Jennifer A. Hartmann is a Pennsylvania Board Certified Chiropractic Physician, Licensed Massage Therapist, Functional Movement Specialist, Golf Fitness Instructor, Internationally Certified Chiropractic Sports Provider and Dietitian with more than a decade in sports medicine and therapy. This focus on sports medicine and nutrition has evolved into a comprehensive wellness mecca for the Main Line that has been designed to help patients achieve healthier lifestyles. By combining expert skills in advanced soft tissue techniques, sports chiropractic, strength conditioning and clinical nutritional testing, Dr. Hartmann has generated a true comprehensive approach of care for her patients who are either beginning or continuing their wellness journey.

Using a truly holistic approach to wellness and healing is what distinguishes her from the typical chiropractor. A holistic approach to care means that we are interested in engaging and developing the whole person. You can think of this as the 8 dimensions of wellness: physical, emotional, spiritual, social, financial, intellectual, occupational, and environmental. It’s the concept that the human being is multi-dimensional and multi-factorial. Dr. Hartmann’s strong relationships with some of the best orthopedic speciaists and other allied health professionals nationwide is a major benefit to her patients who rely on those trusted connections for immediate expert referrals. Within the office, the entire staff creates a comfortable, fun, and professional environment to consistently provide patients with the ultimate experience to achieve any of their health goals.

Amie Hamel


Dr. Joe Lacava

Dr. Joe Lacava studied Kinesiology at Temple University before graduating as a Doctor of Chiropractic from New York Chiropractic College. He practices an integrated approach to pain relief and pulls from a wide variety of multidisciplinary sources ranging from athletic training and neurology to sports medicine.

Since graduation he has continued to improve upon his clinical skills and diagnostic abilities through a diverse array of post-professional seminars and certifications. He holds certifications in the Graston Technique of myofascial therapy, Selective Functional Movement Assessment (SFMA) and the McKenzie Method of Mechanical Diagnosis and Treatment (MDT). Dr. Joe also has been on track to become a fully certified Active Release Therapy (ART) practitioner.

Dr. Joe’s approach combines the highest quality science regarding pain neurology with a commitment to clinical biomechanics and functional movement that is patient-tailored and centered.

Dr. Lacava’s philosophy is that wellness means empowering you to move through your day with healthy, sustainable movement. Dr. Lacava does not seek to bestow wellness onto his patients. He guides and coaches them to maintain their state of wellness every day through healthy movement habits.

When he’s not caring for patients, Dr. Joe places a high priority on staying active; he enjoys hiking, backpacking, nature photography, sustaining a personal yoga practice and maintaining fitness through Kettlebells, High-Intensity Interval Training and bodyweight resistance training.

Dr. Irene Londer

Dr. Irene Londer has been committed to helping her patients live healthier lives for 25 years. Her passion for helping people break free of pain & return to optimal function and performance at work and home, started at an early age. Volunteering at Coney Island Hospital in NY, local nursing homes and pain management practices triggered her interest in working on the human body to restore health utilizing natural holistic therapies. After graduating from Temple University, she went on to Pennsylvania Chiropractic College, graduating Cum Laude in 1995. Dr. Londer is an active member of the Pennsylvania Chiropractic Association & American Chiropractic Association and has served communities in South Philadelphia, King of Prussia and Devon Pa. Dr. Londer lives in Collegeville, Pa with her husband and children.

My philosophy of care is based on the belief that my patient’s needs and goals for health is of the utmost importance. Listening to their healthcare concerns is important in working as a team to provide the optimal acute care treatment protocol and then continued wellness care plans. By utilizing specialty techniques focusing on soft tissue and gentle manipulation of the spine, I strive to restore health and optimal function in the quickest and safest way possible. I promise to guide and educate my patients on ways to lead a healthy lifestyle while respecting the body’s natural healing abilities. While the treatment at our office is priority to reduce restriction in motion, spinal misalignments and postural asymmetry, maintaining the progress requires home instruction on not only functional daily stretches and strengthening exercises but proper nutritional habits as well. Providing our patients with the tools to live their lives without interference is what helps us strive to provide our community with the best care.

I am excited to bring to SCHC a knowledge base and treatment protocols to help patients identify dysfunctional patterns in their musculoskeletal system that is holding them in the pain cycle and keeping them from optimal performance.

Amy Hewitt

I have been with Strafford Chiropractic since September 2013. My role as front office coordinator is to help the patients with managing their appointments as well as answer any of their questions or concerns regarding their billing and insurance needs. When you call, I’ll answer!

I Graduated from West Chester University with a Bachelor of Science degree in Early Childhood Education. After college, I worked at Kids’ Korner in Narberth, as an Educational Director and Pre-Kindergarten Teacher. For 25 years I worked at NCO Customer Management Inc. My roles ranged from: Licensing and Compliance Coordinator, Account Manager, Training and Quality Coordinator, Telephone Sales Representative.

I have been happily married to my wonderful husband, Pete, for 20 years. We have six awesome children, Jessica, PJ, Melissa, Samantha, Victoria, and Jack. When I’m not here helping our patients and staff, I am an avid volunteer in the Tredyffrin/Easttown school district and local community. We currently reside in Devon with our fun loving dog, Scarlet!

Jeannie Mercier, LMT

Jeannie has been in the massage world for 11 years and attended PSMT Philadelphia School of Muscle Therapy. After a long career in the business world and raising two children, she was looking for a change. While dealing with a long family illness, she received a massage as a gift and quickly learned that proper bodywork can make stress melt away. Jeannie seeks to make a difference in the lives of all of her clients, from athletes to the elderly and everyone in between. She implements a combination of different modalities when addressing each client’s pain, dysfunctions, and bracing due to injury or poor posture. She has trained in Swedish, Deep Tissue, Sport, Myofascial Release, Thai, Cupping, Raindrop Technique, and Reiki.

Susan Mackling, Intern

I have been working for Strafford Chiropractic & Healing Center since February 2017 as their intern. I am currently enrolled in at Eastern University, I am going to be a junior this fall. I am studying accounting and finance, with a minor in entrepreneurial studies. I am Amie’s assistant, I help out with filing and the back end of the business while I am on site. While I am away for the summer, I am helping out with their marketing such as: Facebook updates, promoting events and workshops Strafford’s is holding, sending out newsletters to the amazing patients, and updating the website.