Dr. Jennifer DeMarcoDO

Family Medicine

at Jennifer DeMarco, DO - Concierge Family Medicine — Rockville Centre, NY

About

Jennifer DeMarco, DO, earned her medical degree from NYIT College of Osteopathic Medicine and has built her family medicine practice in Rockville Centre over more than two decades. She holds active membership in the American Osteopathic Association and the American College of Osteopathic Family Physicians. Earlier in her career, she served as an assistant professor at both the New York Institute of Technology College of Osteopathic Medicine and Touro College of Osteopathic Medicine.

Dr. DeMarco brings osteopathic manipulation, nutrition and supplement guidance, and essential oils therapy into her clinical toolkit alongside traditional medicine. Patients report that she reaches for natural remedies before prescriptions and has helped many avoid surgery through skilled manipulation of back and neck issues. She is passionate about patient counseling, with a particular focus on supporting those affected by addiction. Outside medicine, Dr. DeMarco raises four children, volunteers raising awareness of Fertility Awareness Based Methods, coaches boys' basketball, sings in a rock band, and sails with friends.

Education & Training

Medical School

NYIT College of Osteopathic Medicine

Additional Training

Assistant Professor, NYIT College of Osteopathic Medicine; Assistant Professor, Touro College of Osteopathic Medicine

Conditions Treated

chronic inflammatory conditions
autoimmune illness
chronic fatigue
Long Haul Covid
high blood pressure
high cholesterol
cold and flu
addiction

Who is Dr. DeMarco right for?

Dr. DeMarco is a strong fit for patients who prefer a holistic approach to primary care. Adults managing chronic inflammatory conditions, autoimmune illness, or Long Haul Covid symptoms benefit from her integrative clinical style. She sees patients of all ages, making her a practical choice for families seeking a single, consistent physician. Patients who want natural and osteopathic options explored before prescriptions will feel at home in her practice.

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Frequently Asked Questions

Dr. DeMarco focuses on chronic inflammatory conditions, autoimmune illnesses, chronic fatigue, and Long Haul Covid symptoms. She also manages common primary care needs like high blood pressure, high cholesterol, and women's health concerns. Her integrative approach allows her to address both acute and long-term health issues.

Yes, osteopathic manipulation is a core part of Dr. DeMarco's clinical toolkit. She uses it alongside conventional medicine to address musculoskeletal issues, particularly back and neck problems. Many of her patients have avoided surgery through her skilled application of these techniques.

Dr. DeMarco reaches for natural remedies and osteopathic techniques before turning to prescriptions. She incorporates nutrition and supplement counseling, essential oils therapy, and lifestyle coaching into her recommendations. Her goal is to support the body's own capacity for healing whenever possible.

Yes, Dr. DeMarco is passionate about patient counseling and dedicates particular focus to supporting patients affected by addiction. She provides personalized guidance within the context of her primary care practice.

Dr. DeMarco treats patients of all ages, from children through elderly adults. This makes her a practical choice for families who want a single physician to manage care across multiple generations.

Dr. DeMarco earned her medical degree from NYIT College of Osteopathic Medicine. She later served as an assistant professor at both NYIT College of Osteopathic Medicine and Touro College of Osteopathic Medicine early in her career.

Yes, Dr. DeMarco provides women's health and gynecological services as part of her primary care practice. She also volunteers to raise awareness of Fertility Awareness Based Methods outside of her clinical work.

Dr. DeMarco holds active membership in the American Osteopathic Association and the American College of Osteopathic Family Physicians. These affiliations reflect her ongoing commitment to osteopathic medicine.

Doctor profile last updated March 21, 2026