Groton Wellness / Practices / Medical / Medical / Medical Practitioners / William Lewitt, NP, MSN, RN, FNP-C

William Lewitt, NP, MSN, RN, FNP-C

Nurse Practitioner

William Lewitt is a Family Nurse Practitioner for all ages. He provides Holistic Care, managing chronic medical conditions, promoting health and wellness, and treating the whole patient, mind, body, and spirit, in an ethical, humane and collaborative way. This model involves health promotion activities such as physical exercise, meditation, and dietary management which is evidence based on making a positive impact on a patient’s health.

He develops a relationship with his patients working as an advocate and teacher, helping them identify health challenges and achieve their health goals.

William’s evidence-based treatments include the use of the Health Belief Model of Nursing Theory and the principles of Cognitive Behavioral Therapy. William uses Craniosacral Manual Therapy to treat physical disease. He uses traditional Buddhist and Taoist meditative practices, Qigong, and the somatic movement systems associated with those traditions (Taiji, Xingyi, and Baguazhang) to increase emotional and spiritual healing. This framework allows patients to be fully in command of themselves ~ body, mind, and spirit. Patients become a more empowered, educated individual by working alongside their health care advocate. His goal is to present a set of tools that can, in essence, allow individuals to self-actualize.

Since 1995 Willam Lewitt has been training full time in the Neijia Quan, or Internal Family of Chinese Martial Arts, including Taiji Quan (Tai Chi Chuan), Xingyi Quan (Hsing-I Chuan) and Bagua Zhang (Pa Kua Chang).

He is the only living student of Grant Hsu, who taught William his entire family system of Tai Chi. In 2000 William was granted the rank of ShiFu (A fully licensed teacher) in his family style of Bagua Zhang.

In 2006 William began training with Sifu Donald Wang in Boston Chinatown, studying almost exclusively Standing Meditation or Zhan Zhuang, and Qigong (Chi Kung). After seven years he was granted the title of Sifu. At this time he became an inner door disciple of Wang Sifu practicing the art of Kwang Sai Jook Lum Gee Tang Lang Pai (Bamboo Forrest Temple Southern Praying Mantis), an art taught to him by the Monk, Lam Sang. In 2016 William underwent the traditional tea ceremony where he was officially inducted as a lineage holder in this art.

In 2016 William began training at the Benson Henry Institute at Massachusetts General Hospital (Formerly known as the Institute for Mind-Body Medicine). He completed their Introduction to Mind-Body Medicine in Clinical Practice programs. He has also taken the Introduction to Cognitive Behavioral Therapy program at the Massachusetts General Hospital Psychiatry Academy.

In 2016 William began studying Osteopathic Manipulative Treatment. He has completed Craniosacral Therapy (CST) I and II with the Upledger Institute. He attended Somato Emotional Release (SER) I in March. Additionally, he has completed training in Osteopathy in the Cranial Field (Basic and Advanced) as well as Ligamentous Articular Strain. He plans to obtain a Diplomate both from the Upledger Institute and the Osteopathic College of Ontario as well as further foundational training in Functional Medicine.




2012-2015    Masters of Science in Nursing, Walden University, Minneapolis, MN   2010-2011    Bachelor of Arts in Psychology, Cambridge College, Cambridge, MA      2006-2009    Bachelor of Arts in Psychology, Excelsior College, Albany, NY               1996-1998    Associates of Arts and Sciences in Nursing, UT
Health, Science, Center, San Antonio, TX
1994-1995   Certification as EMT-Paramedic, Eastern Medical, Educators,
Hanover, MA



Certifications & Advanced Training

2006-2013   Training with Sifu Donald Wang in Boston Chinatown (Standing Meditation or Zhan Zhuang, and Qigong (Chi Kung)) ~ granted the title of Sifu
2013    Inner Door Disciple of Wang Sifu (Kwang Sai Jook Lum Gee Tang Lang Pai ~ Bamboo Forrest Temple Southern Praying Mantis)
2016    Benson Henry Institute at Massachusetts General Hospital
2016    Osteopathic Manipulative Treatment, Craniosacral Therapy (CST) I and II, Upledger Institute
2017    Somato Emotional Release (SER) I
2017    Osteopathy in the Cranial Field (Basic and Advanced)
2017    Training in Ligamentous Articular Strain

  • MA/NH Nurse Practitioner
  • MA/NH Registered Nurse
  • MA EMT-Paramedic
  • Critical Care Paramedic
  • Intensive Care Provider
  • CICP
  • Advanced Trauma Life Support
  • Fundamentals of Critical Care Support
  • Difficult Airway Course: Emergency
  • The Heart Course: Emergency
  • Prehospital Trauma Life Support
  • ACLS
  • PALS
  • BLS
  • Arrow Intra-Aortic Balloon Pump
  • Trauma Nursing Core Course