Dr. Stephan GoupilDO, PhD, DABFM, FAAFP, DipABLM

Family Medicine

at Extended Healthspans — Westford, MA

About

Stephan Goupil, DO, PhD, DABFM, FAAFP, DipABLM, founded Extended Healthspans in Westford, Massachusetts in 2024. His academic path began in research: he earned a PhD in Biomedical Science focused on the Biology of Aging before pursuing clinical medicine. He also served as a biology and genetics professor at Montgomery College. He later earned his Doctor of Osteopathic Medicine from the Philadelphia College of Osteopathic Medicine and went on to earn board certifications in both Family Medicine and Lifestyle Medicine.

Dr. Goupil built his career in family practice and primary care before launching Extended Healthspans to pursue a more intensive, relationship-driven model of care. He is passionate about uncovering root causes of chronic illness and uses advanced diagnostics alongside personalized lifestyle interventions to help patients improve long-term health outcomes. org. Outside of practice, Dr. Goupil models the six pillars of Lifestyle Medicine himself through trail running, swimming, skiing, SCUBA diving, meditation, and time with friends and family.

Education & Training

Medical School

Philadelphia College of Osteopathic Medicine

Additional Training

PhD in Biomedical Science, Biology of Aging; Biology and Genetics Professor at Montgomery College

Certifications

Board Certified in Family Medicine
Board Certified in Lifestyle Medicine
DABFM
FAAFP
DipABLM

Conditions Treated

hypertension
heart disease
high cholesterol
type 2 diabetes
pre-diabetes
obesity
anxiety
depression
stress
insomnia
fatigue
low energy
chronic GI symptoms
gastroesophageal reflux disease
migraines
chronic headaches
menopause
perimenopause
thyroid disorders
osteoarthritis
chronic pain
weight management

Who is Dr. Goupil right for?

Dr. Goupil is a strong fit for adults who want to move beyond symptom management and address the root causes of chronic illness. Patients managing conditions like type 2 diabetes, hypertension, high cholesterol, thyroid disorders, or obesity benefit from his combined expertise in family medicine and lifestyle medicine. He also works well with patients navigating hormonal changes, chronic fatigue, or metabolic concerns. Those who want a proactive, evidence-based partner in their long-term health will find his approach well matched to their goals.

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Frequently Asked Questions

Dr. Goupil focuses on chronic conditions across cardiovascular, metabolic, hormonal, neurological, and musculoskeletal health. He treats hypertension, heart disease, high cholesterol, type 2 diabetes, pre-diabetes, obesity, anxiety, depression, insomnia, thyroid disorders, menopause, osteoarthritis, and chronic pain, among others. His approach centers on lifestyle interventions to manage and, in many cases, reverse these conditions.

Dr. Goupil works to identify root causes rather than address symptoms in isolation. He uses advanced diagnostics, personalized lab review, and evidence-based lifestyle interventions to build a health plan unique to each patient. His framework follows the six pillars of Lifestyle Medicine: nutrition, physical activity, sleep, stress management, social connection, and avoiding risky substances.

Yes. Dr. Goupil holds board certifications in both Family Medicine and Lifestyle Medicine. He carries the credentials DO, PhD, DABFM, FAAFP, and DipABLM, reflecting his training across clinical medicine, research, and lifestyle-focused care.

Before entering clinical practice, Dr. Goupil earned a PhD in Biomedical Science with a concentration in the Biology of Aging. He taught biology and genetics at Montgomery College. He then completed his Doctor of Osteopathic Medicine at the Philadelphia College of Osteopathic Medicine. That research background directly informs how he approaches longevity medicine today.

Yes. Dr. Goupil guides patients through supplement decisions as part of each personalized health plan. He believes supplements should enhance a healthy diet, not replace it. Members receive access to discounted supplements through Fullscripts and partner platforms.

Yes. Dr. Goupil offers advanced genetic testing through INTELLXXDNA as part of his advanced diagnostics options. This testing helps personalize health strategies based on each patient's genetic profile.

Dr. Goupil works with adults managing chronic conditions who want a more thorough, prevention-focused approach to care. His patients often come with diagnoses from their primary care physician or specialists and seek long-term lifestyle strategies to improve or reverse those conditions.

No. Dr. Goupil's role complements your primary care physician rather than replacing them. He focuses on long-term preventive care and lifestyle interventions. Your PCP continues to handle acute care, routine checkups, and general medical coordination.

Yes. org. These free community walks give participants a chance to ask health questions, stay active, and connect with Dr. Goupil in an informal setting. All members receive access to these events as part of their membership.

Doctor profile last updated June 11, 2026