Watch Video

Welcome to
My Path Medical

Welcome to My Path Medical

Katherine Lantsman, MD

Passionate about Functional Medicine and nutrition, Dr. Lantsman established My Path Medical in 2012 in order to assist people to improve their overall health and to address chronic illness.

Dr. Lantsman is known and recognized for her ability to diagnose and treat symptoms from previously unidentified etiologies. She is an expert at treating the effects of chronic diseases, such as low thyroid function, obesity, type 2 diabetes, high blood pressure, gastrointestinal disorders, arthritis, hormone imbalance, fatigue, mood disorders, parasitic infection, infertility, and various other maladies.

Trained and Board Certified in Internal Medicine, Dr. Lantsman was fortunate to begin her studies in functional medicine during her residency on a clinical rotation at Beth Israel’s Center for Health and Healing in Manhattan. After completing her residency at Lenox Hill Hospital, she joined a fast-paced medical practice on the Upper East Side of Manhattan. It was there that Dr. Lantsman began to note how nutritional interventions could make a tremendous difference to the immediate well-being of her patients. 

Having seen the benefits of a holistic treatment approach, she went on to open her own functional medicine practice, dedicated to wellness and treatment of life-long illnesses. Dr. Lantsman empowers her patients to participate in the healing process. She leaves no stone unturned in establishing the root cause behind their symptoms, working in partnership with her patients on their path to wellness. Dr. Lantsman takes a personal and humanized approach to the prevention and healing of chronic illnesses. “I want to treat my patients as I would want to be treated myself,” says Dr. Lantsman.

After unsuccessful  infertility treatments, including one IVF and one IUI, administered by a prestigious infertility center in Boston, MA, Dr. Lantsman applied her experience and knowledge of functional medicine to her own health. She had a healthy pregnancy and delivered a healthy baby at age 45.  Inspired by her own success, she now helps others to overcome infertility difficulties.

Dr. Lantsman practices what she preaches, keeping a gluten and dairy free household and preparing unprocessed whole foods for the family. She enjoys running, weight training and hot yoga. She is also a long-time student of the Clairvison school of meditation. Dr. Lantsman starts her mornings with an hour-long meditation and practices dynamic awareness throughout the day.


Brandeis University, BS
St. George’s School of Medicine, MD
Lenox Hill Hospital, Residency in Internal Medicine
Lenox Hill Hospital, Fellowship in Gastroenterology Research

Meet the Staff

We have a devoted team to help you along your path to good health.

Daniela Wong

Growing up locally in Boston, Daniela received her BFA from Suffolk University. Having worked previously at an ultrasound clinic and a chiropractor’s office, she found the medical field to be particularly engaging. My Path Medical is a perfect fit for that interest, and she finds the close-knit network between staff, doctor, and patient to be what makes it thrive. She enjoys art and does part-time freelance illustration and design.


  • We celebrated our daughter’s first birthday this week! Looking at my beautiful, perfect baby girl reminds me of how much you helped my family get to this point. At this special time we wanted to share our gratitude with you. She never would have turned out so well without you discovering our health problems, especially the lead. I’m so excited to start the process with you again before we try for baby number two. Many many thanks for how much you care and how dedicated you are to your patients.

    - Anonymous

  • “Dr. Lantsman is down to earth, intelligent, creative, and caring. She has a dynamic way of handling patient care, is very responsive, and keeps looking for answers where other doctors would just give up. I am so glad I found her!”

    - J.T.

  • “Recently I have become a patient of Dr. Katherine Lantsman. I was skeptical at first as I had seen so many MDs who did so many tests and offered no help or suggestion about my deteriorating health situation which, at that point, had left me nearly homebound. Since seeing Dr. Lantsman I have truly regained my life and my energy. I have a good relationship with Dr. Lantsman and, aside from the original problem I brought to her, she has helped me with multiple serious and complicated medical problems. She is accessible, creative and has never suggested that my medical issues are too complex or in some way impossible to address. She sincerely likes to help her patients feel better and feel better I do.

    I would highly recommend Dr. Lantsman to patients who are suffering and receiving medical care that is uninspired, unfriendly or just unhelpful.”

    - D.W., Newton, MA

  • “Dr. Lantsman is a gifted physician. Her approach is mindful, broad in perspective and proactive about health rather than reactive. As a diagnostician, she pulls from multiple disciplines, not limiting the lens through which she views a patient to traditional Western medicine. She simply does not settle for the easy-out or first solution, but works with her patients, within their principles, toward the attainment of authentic health.”

    - J.B.

  • “Dr. Lantsman’s medical skill set is superb. She investigates her patients’ health problems to a much greater extent than other doctors and offers her patients a variety of solutions. She communicates very clearly with her patients and most importantly listens and responds to their concerns.

    Dr. Lantsman treats her patients as human beings, caring not only for their physical health, but also for their overall well being (emotionally, etc.). She has the best bedside manner – better than I’ve seen from most other doctors.  She remembers details about her patients’ lives, asks how things are going, and truly listens. You don’t just feel like a medical file when you visit her — you feel like a person.

    While I’m conditioned to believe in Western medicine, Dr. Lantsman has introduced to me to integrative approaches (that blend Western medicine with natural approaches) that I find refreshing. She has helped me become more conscious of factors in my life that affect my overall well being.

    I’ve recommended Dr. Lantsman to my family and friends.  My best friend and my spouse are also her patients, and I’m confident they are receiving the very best care.”

    - J.W.

  • “As an elite athlete I pay close attention to my body and need it to be healthy to maximize my performance. I sought out Dr. Lantsman because I wasn’t feelling well and not recovering from workouts. Through her integrative approach Dr. Lantsman was able to diagnose several vitamin deficiencies and hormone imbalances that when corrected allowed me to maximize my performances and decrease recovery time.”

    - T., Boston, MA

How We Are Different

Functional Medicine: We apply a functional medicine viewpoint to everything we do

You are a unique individual, with a unique genetic make-up, unique experiences and a unique path. That’s why My Path Medical offers a one-of-a-kind approach to your healthcare needs.

Functional Medicine is a customized, patient-centered, modern clinical approach to treating complex and chronic illnesses. Following a thorough, thoughtful evaluation and specialized testing, we establish a holistic plan to treat the cause of your current and recurring symptoms. Your optimal long-term health is our ultimate goal so we give our patients the tools needed to maintain life-long wellness and prevent future chronic illness. 

A conventional medicine physician typically spends a limited amount of time with each patient. The doctor takes a list of symptoms and attempts to match them to a diagnosis and the corresponding treatment options. This approach works well for simple curable conditions such as acute bacterial or fungal infections. On the other hand, more complex or chronic conditions are frequently misdiagnosed or labeled as incurable. From there, the typical treatment plan is a generic protocol of prescription drugs that can only alleviate or suppress symptoms. 

Functional medicine is aimed at overcoming this serious shortcoming of conventional medicine. The solution is a systems-wide approach for identifying the unique causal factors behind a patient’s illness. A functional medicine physician takes the time to investigate all aspects influencing a patient’s health. We look at a patient’s development, health history, life stressors, traumatic events, sleep, diet, physical activity, as well as psychological and genetic factors.

Functional medicine evaluates all the functions and malfunctions of a patient by conducting a thorough physical exam and ordering specialized medical tests. Only after a thorough analysis of all available data does the doctor recommend a plan for a better path forward. We do not reject conventional treatment options, such as prescription medications and use them when it is appropriate. Medications may be complemented by other recommendations, such as nutritional supplements, dietary changes, stress reduction, hormonal balancing, detoxification and others.

We are committed to Functional Medicine at My Path Medical and strive to provide this level of service to every patient.

Time Spent: We provide ample time to achieve the best diagnose and treatment plan.

We use personalized approach to health. At My Path Medical we take ample time to establish the most accurate diagnosis and create the best treatment plan for your unique needs. Unlike a traditional medical practice, where you’re lucky to get 30 minutes with a doctor, we take the time to listen, examine, evaluate, and research the latest medical literature.

Our outcomes are superb when we apply the functional medicine approach, examine the whole person and gather data using cutting edge tests. That is why we see so many patients that are tired of being told “everything looks normal” by primary care doctors and specialists at Boston’s top medical centers. We take the time and use every resource to finally find a solution to your symptoms

Root Cause: We try to get to the root cause of your issue and not just give you a band aid.

Our philosophy at My Path Medical is grounded by our comprehensive patient-first approach that utilizes functional medicine to create a unique and holistic treatment plan for every patient. We take the necessary time to uncover the root cause of your health issues instead of providing band-aid solutions to your symptoms.

“I look into the root cause and dynamics of potential diseases. Integrative nutrition and guidance for a healthy lifestyle completes the rejuvenation approach. At My Path Medical, the goal is to provide safe, effective treatment and prevention based on a thorough evaluation of each individual patient.”  – Katherine Lantsman, MD

Prevention: We Focus on prevention, not just prescribing medication

My Path Medical uses an integrative, patient-centered, approach to address the whole person. Our mission is to provide the best possible treatment for your immediate health issues but we don’t stop there. The ultimate goal is for you to feel your absolute best, long-term. That’s why we also focus on education and giving you the tools and guidance for a truly healthy way of living.

Functional medicine works by working in partnership with our patients. Together we create a holistic plan that is formulated uniquely for you. We find and treat the underlying causes of your current symptom, help you reach optimal health, and prevent future illness.