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Jonathan S. Lown, MD

Internal Medicine
2171 Jericho Turnpike Suite 100
Commack, NY 11725 Get Directions
631.343.7242
Jonathan S. Lown, MD
More information available

Annual Membership Fee

495.00 every 3 months *
990.00 every 6 months *
1,980.00 each year *
*The lab portion of the annual MDVIP Wellness Program will be billed to patients directly by the lab company at the discounted rate of $70.

My Philosophy and Approach to Wellness...

As an Internist, I have developed a deep understanding of wellness and long-term healthcare. My approach focuses on helping patients live better and longer lives through both acute and preventive care. I give every patient personal advice and support in a relaxed and unrushed manner. I utilize the latest advancements in medicine and knowledge of the latest discoveries in medical research and wellness screenings to help identify risk for disease and prevent it or treat it early. It is also important to me to foster and promote optimism and good humor, which are also important elements in the healing process and staying well. 

I focus on primary care, internal medicine, cardiovascular health, preventive medicine and women’s health. In addition, I am board certified in sleep medicine and am able to treat sleep-related illnesses, such as obstructive sleep apnea and insomnia while providing guidance on CPAP management. By promoting physical and mental well-being and coaching healthier lifestyle choices, I help empower my patients to live the best life possible. I also offer conveniences, like same- or next-day appointments that start on time, which may be found in concierge medicine practices. 

My private primary care practice currently serves all of Long Island, New York. My office is conveniently located in Commack, which is easily accessible from Eastern Nassau County and Western Suffolk County. I am affiliated with St. Catherine of Siena Medical Center in Smithtown, New York. I speak fluent English and Spanish.
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Dr. Lown's Credentials

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Residency:
Columbia Presbyterian Medical Center
New York, NY
1995-1998

Internship:
Columbia Presbyterian Medical Center
New York, NY
1995-1998

Medical School:
State University of New York - Downstate
Downstate, NY
Doctorate of Medicine 1995
Magna Cum Laude

Undergraduate:
State University of New York - Plattsburgh
Plattsburgh, NY
Bachelor of Science, Biology 1987

Diplomate in Internal Medicine, American Board of Internal Medicine 1998-present
Diplomate in Sleep Medicine, American Board of Internal Medicine 2009-present
Diplomate of Clinical Lipidology, American Board of Clinical Lipidology 2006-present
St. Catherine of Siena
Spanish
Alpha Omega Alpha, Medical Honor Society
Professor/Clinical Preceptor, Stonybrook University Medical School 1995-present
Sasak, V., Lown, J., Colburn, K., Human Small Intestinal Apolopoprotein B-48 Oligaosaccharide Chains, Biochemical Journal 1991
High-affinity NGF binding requires co-expression of the trk prto-oncogene and the low Affinity NFG receptor, Nature 1991 (Acknowledgment)
American Academy of Sleep Medicine
American College of Physicians
American College of Chest Physicians
National Lipid Association
Suffolk County Medical Society
New York

Testimonials from patients of Dr. Lown

Dr Lown is very thorough.
from Steve in NY March 1, 2018 for Jonathan S. Lown, MD

Dr Lown is very thorough. However when I was recently hospitalized for nearly 3 months I never received a call or a visit from him. Although he did text with my wife I was disappointed that he never saw me.

He makes the time, and truly cares about his patients as people.
from Rhea in NY March 1, 2018 for Jonathan S. Lown, MD
User submitted photo

Dr. Johnathan Lown took over my healthcare needs in the MDVIP plan. He has always been responsive to my concerns, and has made himself available both in and outside of Office Hours. No question of mine is ignored. He will bring up charts and information on the internet to help explain the issue for me. Finally, a Dr. who also cared enough to thoroughly investigate my sleep needs.… See more

We consider him a friend as well as our physician.
from Larry and Alyce in NY February 28, 2018 for Jonathan S. Lown, MD
User submitted photo

Dr. Lown has treated my family for many years. We consider him a friend as well as our physician. He has a wonderful personality and humor. He takes every health complaint seriously and thoroughly explains his treatment plan. He is one of the most intelligent men we know and are so happy that he is our doctor.

I recommend him to friends and family alike.
from Frederick March 27, 2017 for Jonathan S. Lown, MD

I have known Dr. Lown for many years and consider him a friend and my physician. Dr Lown goes out of his way to accommodate his patients and is extremely knowledgeable. I have never waited more than 5 minutes in the waiting room and am treated like royalty by the staff. I recommend him to friends and family alike.

When dr. Fagan retired I had to select another doctor , it was Dr. Lown.
from Phyllis in NY February 22, 2014 for Jonathan S. Lown, MD

When dr. Fagan retired I had to select another doctor , it was Dr. Lown. What a pleasant surprise!! He was and is an outstanding doctor. He is taking care of me for over a year. He is thorough, passionate and caring. I am in excellent health and Dr. Lown is certainly one of the reasons. It is my honor and privilege to honor and celebrate doctors day. You are the best!!!!!!

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