Welcome to Princeton Integrative Health

We bring functional and conventional medicine together.
Monday - Friday 9:00AM - 5:00PM
Saturday - Sunday By Appointment

1 609 512 1468

1 609 512 1546

134 Franklin Corner Road, Suite 101B, Lawrenceville, NJ 08648

Schedule an Appointment

Mon-Fri 9a-5p

1 609 512 1468

134 Franklin Corner Road, Suite 101B, Lawrenceville, NJ 08648


Meet Our Team


Jenna Richardson
Certified Integrative Health Coach and Functional Diagnostic Nutrition Practitioner (FDN-P)

When your father is a medical doctor and your mother is a registered nurse, a career in the health field is virtually inevitable. Jenna entered college as a pre-med student, but the smell of formaldehyde and the sight of blood made her realize that she should choose a different path.

After earning a BS in business communications from Cornell University, Jenna spent 15 years traveling the world as a management consultant. Interestingly, her focus was helping businesses become well by optimizing their systems and processes to maximize efficiency, productivity and profitability.

Jenna reached a crossroads when she became pregnant with her son, Carter. Doctors told her that she shouldn’t be eating certain foods, but they didn’t explain why. Jenna thought, “If these things are unacceptable when I have a child inside me, why are they acceptable at other times?” She began to question conventional medicine.

Carter had some serious health issues when he was just six months old. Jenna bounced around from doctor to doctor who recommended medication after medication. When she went to fill a prescription, the pharmacist pulled her aside and said he wouldn’t give her the medication because it could cause fatal respiratory issues for a child Carter’s age.

Having struggled with her own health issues throughout her life, this was Jenna’s breaking point. She knew it was time to pursue her passion and help people become well – not by waiting for problems to arise and treating them with medication, but by preventing and reversing chronic illness through smart decisions that stimulate the body’s natural ability to heal itself.

Jenna became a Certified Integrative Health Coach through the Institute for Integrative Nutrition. She has also earned her certification as a Functional Diagnostic Nutrition Practitioner (FDN-P). But Jenna knew she could deliver better results with the help of a medical doctor who bought into the functional approach. So she picked up the phone and called her father, Dr. Vincent Leonti.


Dr. Vincent Leonti, MD
Medical Director

Dr. Leonti knew from the time he was in grade school that he wanted to become a doctor. After graduating from SUNY Upstate Medical University in Syracuse, NY, he went back and forth between family medicine and emergency medicine. His preference was for family medicine because it allowed him to develop closer relationships with his patients.

Dr. Leonti has always been active. He has even completed five marathons over the years. That’s why he was shocked when he went out for a run one day and experienced pain in his chest. A cardiologist told Dr. Leonti that he had an 80 percent blockage in one coronary artery and a 70 percent blockage in another.

As a doctor, Dr. Leonti thought he was living a healthy lifestyle, but he unknowingly had been misinformed and developed bad habits that brought him to an unhealthy place. He was forced to make lifestyle changes to improve his health. It was during this time that his daughter, Jenna, began her journey in functional medicine and integrative health.

Dr. Leonti had never heard of functional medicine and admittedly thought the concept was more than a little off-base. It seemed to go against everything he knew as a medical doctor. He skeptically attended his first functional medicine conference and instantly saw the disconnect between traditional and functional medicine. Traditional medicine was great at treating acute illness or crisis situations, like a broken arm or heart attack, but chronic illness was a different story.

Dr. Leonti realized that so much more could be done to prevent and reverse chronic illness by bringing the functional approach to conventional medicine. Instead of waiting for a problem to arise and treating it with medication, functional medicine attacks the root cause of health issues and prevents problems from occurring in the first place. Dr. Leonti enrolled in the Institute for Functional Medicine and Functional Medicine University, where he is in process of certification.

The real-life experiences of a father and daughter, and a shared belief in the power of functional and conventional medicine, soon led to the creation of Princeton Integrative Health.


Jessica Carlan Ahlers
Integrative Nutrition Health Coach

Jessica is our Integrative Nutrition Health Coach who practices a holistic approach to nutrition and helps patients identify underlying causes or drivers of symptoms. She received her bachelor’s degree from Bryant University and went on to have a successful career in pharmaceutical sales. After a decade of collaboratively working with physicians from Yale, Massachusetts General and other teaching institutions, Jessica realized our “healthcare” system was more of a sick care system. She saw the unmet, urgent need for preventive care that addresses the whole person, covering their mental, emotional and spiritual well-being. She left the conventional medical sales field in 2013 and enrolled in the nutrition program through the Institute for Integrative Nutrition. In her personal time, Jessica enjoys power-walking the boardwalks of the Jersey Shore; hanging with her niece Emilia; visiting friends in her native state of Connecticut; traveling to Vermont or Ireland (or anywhere beautiful!) with her husband, Chris; and seeking out the latest wine tasting.


Jackie Zohn
Patient Ambassador

Jackie has a background in counseling and family education and a passion for health and wellness. She holds a BA in social welfare from Albright College. She is dedicated to helping others to maintain a cleaner and healthier lifestyle and is a great asset in assisting our patients as they navigate their functional and lifestyle medicine journey. Jackie is passionate about increasing research to find alternative treatments for hydrocephalus and also suicide prevention through the organization Attitudes in Reverse. In her spare time, Jackie plays ice hockey with “the craziest women on the planet” and runs Mercer Special Hockey, which provides individuals living with intellectual and developmental disabilities a platform for learning how to skate, play hockey, make friends and have fun. Jackie is highly organized, self-motivated, charismatic, energetic and service-oriented, making her a perfect patient liaison and ambassador.

Conny Garefino, DC

Dr. Conny has known the benefits of chiropractic care for her entire life. A native to New Jersey, she started seeing a chiropractor when she was 6 months old after having multiple ear infections and pneumonia. From childhood, she has understood that chiropractic is about keeping your nervous system healthy because it controls EVERYTHING. She grew up knowing that getting adjusted at the first sign of a cold meant she would feel better quickly because her body was able to function better. Therefore, when she decided to go to chiropractic school, she found she’d been living a chiropractic lifestyle all along and that this profession was perfectly in line with her philosophical beliefs and trust in the body to heal.

From the beginning of her chiropractic education knew she was passionate about prenatal/pediatric chiropractic, however becoming a mom in her last year of chiropractic school really inspired her to gain as much knowledge and experience as possible.  She was adjusted throughout her entire pregnancy and her son has been adjusted since day one. Dr. Conny is certified in the Webster Technique which is a gentle chiropractic technique for balancing the pelvis and optimizing nerve function during pregnancy. She is also an advocate for natural childbirth and breastfeeding. Dr. Conny practices chiropractic using the approach known as Bio-Geometric Integration or BGI. This allows her to use the least amount of force necessary to integrate a person’s subluxations.

Dr. Conny is so excited to spread her love, knowledge, and trust in chiropractic to young families so they may also experience a life of clear, healthy nervous systems.


Susan Leonti, RN

In addition to 30 years of experience in healthcare as an RN, Sue brings to the table a focused and dedicated approach to organizing and coordinating people, processes and events. Chalk this up to her Italian heritage! She is a key part of our team as we work to engage and educate within the community and health and wellness field. Sue is also a major part of the “team” as Dr. Vinny’s wife, Jenna’s mom and, especially, “Mahgah” to Carter and Nyah.

Patti McDougall, RN, BSN
Integrative RN and Health Coach

Patti is a Registered Nurse and educator with more than 30 years of experience caring for patients in a variety of settings. She brings both a strong traditional nursing background and lifelong passion for holistic healthcare to her role at Princeton Integrative Health. She believes patients should not have to choose between holistic and traditional healthcare, and appreciates the opportunity to spend time understanding their health problems and concerns. She helps patients understand the relationship between their life stories and their health issues, and offers the tools and education they need to live as optimally as possible.

Jen Ruiz, LMT

Jennifer Ruiz, LMT
Licensed Massage Therapist

Jennifer Ruiz, licensed massage therapist (LMT), is the founder of Amala Lymphatic & Massage Therapy, which is located within the PIH office suite. Jennifer uses a multidimensional approach to massage and bodywork that treats the whole person by guiding the mind and body to a place of balance and ease. 

In addition to more than a decade of experience working at a 5-star spa in New York City, she is a recipient of a Forbes 5-star award for Excellency. Jennifer graduated from the Swedish Institute of Health Sciences in 2001, and is licensed to practice massage in New Jersey and New York.


Adnan (Ed) Shareef
Clinical Coordinator

Having more than 10 years of experience serving the intellectually and developmentally disabled community in a variety of roles helped Adnan to realize a problem with our approach to medical interventions. After an extensive research and reflection process, he found systems medicine/functional medicine. He recognized that our current model does a great job at treating infectious and communicable diseases and managing non-communicable diseases, but falls short when it comes to addressing complex disorders like Alzheimer’s and autism. Systems medicine/functional medicine, on the other hand, offers solutions to not only stop but reverse these complex diseases and disorders. After learning this, Adnan knew that he had found his calling. He reached out to the Institute of Functional Medicine, where they encouraged him to shadow current practitioners. Adnan joined PIH and got involved as a shadow/scribe. Since that time, he has become much more involved with the practice in a variety of different projects and functions including client care, operations, and communications. Adnan’s current passion project is developing and implementing a humanistic approach to behavioral intervention, one that focuses on improving self-confidence and self-esteem while also improving behavioral outcomes. For fun he enjoys singing in the car, analyzing movies, and cooking.


Regina Schoenberger
Cannabis Educator and Digital Media Designer

Regina is our resident Cannabis Educator. From working with world renown CBD extract companies to biodegradable cannabis plastics, she has experience in many areas of the cannabis industry. She has helped enroll over a few thousand patients into the New Jersey Medical Marijuana program from all ages and varying medical conditions. Regina is also a digital media designer with a strong creative vision. She specializes in cannabis education through video and graphic design.

Regina possess a biology background and holds a B.S. in Business Administration with a concentration in Accounting from Drexel University. Her passion and fascination with cannabis is deeply rooted in her own experience as a medical marijuana patient with chronic pain related to women’s issues. She is passionate about helping women regulate their hormones with plant based medicine.

She is dedicated to helping Princeton Integrative Health patients unlock the true therapeutic benefits of cannabis through education and empowerment. In her free time she enjoys reading, videography, and running. Stay turned for videos on cannabis recipes, important facts, and program updates!