Jonathan S. Lown, MD
Internal Medicine, CHL Physician (NY/NJ/RI)
Hospital Affiliations
St. Catherine of Siena
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MDVIP Annual Membership Fee
MDVIP’s annual fee covers the Wellness Program and generally can be made in quarterly, semi-annual and annual payments.
*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.
Quarterly
$545.00*
Semi-Annual
$1,090.00*
Annual
$2,180.00*
About Jonathan S. Lown, MD
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.
Residency
Columbia Presbyterian Medical Center
New York, NY
1995-1998
New York, NY
1995-1998
Internship
Columbia Presbyterian Medical Center
New York, NY
1995-1998
New York, NY
1995-1998
Medical School
State University of New York - Downstate
Downstate, NY
Doctorate of Medicine 1995
Magna Cum Laude
Downstate, NY
Doctorate of Medicine 1995
Magna Cum Laude
Undergraduate
State University of New York - Plattsburgh
Plattsburgh, NY
Bachelor of Science, Biology 1987
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
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
Professor/Clinical Preceptor, Stonybrook University Medical School 1995-present
Alpha Omega Alpha, Medical Honor Society
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)
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
American College of Physicians
American College of Chest Physicians
National Lipid Association
Suffolk County Medical Society
New York
Benefits of joining Dr. Lown's practice with MDVIP
MDVIP Wellness Program
Expect comprehensive screenings and tests and a custom wellness plan designed for you.
Better Doctor-Patient Relationship
97% of MDVIP members are satisfied with their relationship (vs 58% in traditional PCP).
Same/Next-Day Appointments
See Dr. Lown quickly and take your time during each appointment.
Reachable 24/7
Reach Dr. Lown by phone after-hours and on weekends.
Smaller Practice Size
MDVIP practices are smaller than most primary care practices, which means your doctor has more time to help you.
Your Dedicated Doctor
See Dr. Lown when you go to the office — not someone else like a nurse practitioner or physician assistant
Travel Benefits
If you need urgent care while traveling, your physician can help arrange your care with a local hospital, pharmacy or doctor.
Medical Centers of Excellence
For patients who need care beyond what is available locally, MDVIP can connect your doctor with specialists at some of the country’s leading medical institutions
Better Health Outcomes
Members have better control of chronic conditions like type 2 diabetes, high cholesterol and hypertension.
The office of Jonathan S. Lown, MD
Hours
| Mon | 9:00 AM - 5:00 PM |
| Tue | 9:00 AM - 5:00 PM |
| Wed | 9:00 AM - 5:00 PM |
| Thu | 9:00 AM - 5:00 PM |
| Fri | 9:00 AM - 5:00 PM |
| Sat | Closed |
| Sun | Closed |
MDVIP has allowed me to have a trusted relationship with my physician, Dr Jonathan Lown. I have had an ongoing medical problem and it has been a relief to get a same day appointment and to discuss treatment prescribed by other doctors. He has been there for me and I appreciate it.
Joanne
April 8, 2024
Hello
I am so pleased to be able to share my thoughts about Dr Jonathan Lown, my MDVIP primary care doctor in Commack, NY.
I have been exceptionally pleased with every aspect of Dr Lown's practice, especially of course dealing directly with Dr Lown. Some specifics will be helpful. My prior annual physical exams used to take literally 15-20 minutes and I spent more time in the…
I am so pleased to be able to share my thoughts about Dr Jonathan Lown, my MDVIP primary care doctor in Commack, NY.
I have been exceptionally pleased with every aspect of Dr Lown's practice, especially of course dealing directly with Dr Lown. Some specifics will be helpful. My prior annual physical exams used to take literally 15-20 minutes and I spent more time in the…
Gary
January 20, 2024
I have been with Dr Lown for over 20 years . My wife ,mother and mother in law were all patients. All I can say is that this man always finds time for my family wonderful doctor extremely knowledgeable and a good friend. Thank you Dr Lown for being my doctor.
Robert
January 19, 2024
DR. Lown has saved my life three times. Thru his tests and care in the last few years I have avoided death. I cannot say enough about his love and care for others, Thank you DR. Lown. You are loved by me and my wife Maryann.
Charles
January 18, 2024
Reviews from the web
03/15/2025
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I used to dread Doctor's appointments, but a trip to Doctor Lown's office removed that anxiety. His staff is incredible and Doctor Lown is always great.
07/11/2024
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Dr. Lown, changed our lives. He is so thorough, honest and brilliant. He’s an angel on earth. Highly recommend him! I can trust him with my health and know he will do his due diligence to ensure nothing is overlooked. He truly cares about his patients and dedicate the time needed to address all concerns. I don’t feel like a number when I visit this office! I get medications immediately! Sometimes even delivered to my doorstep!
I have a busy life and being able to get dedicated, speedy and quality service is truly a game changer.
I have a busy life and being able to get dedicated, speedy and quality service is truly a game changer.
04/09/2024
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Dr Lown is THE BEST doctor I have ever had in my 40++ years. He spends REAL TIME with you. And he is super smart. His office is amazing and his care for patients is incredible. I wish all doctors were like him. IF YOU WANT THE BEST—-YOU HAVE FOUND IT.
01/14/2024
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Dr Lown gives you all the time you need and continues to work to find a solution. The sleep center is well run. The technicians make you very comfortable and answer all of your questions. They make everything easy.
09/07/2023
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I cannot tell you if Dr. Lown is a good doctor or not as I have never seen him. I had an appointment with Dr. Lown in August for a sleep study consultation, arrived at my appointment time, waited half an hour and then approached the receptionist to ask when he might be calling me in as I observed that he had two patients in examination and I had somewhere to be later in the evening. I was told he had at least another ten to twenty minutes with those two patients and had another patient ahead of me and that, that patient was there for a consultation and his consultation would be about an hour. I was told that he is a concierge doctor and that he spends a hour with his patients. Since I could not stay in his office for two hours waiting to be seen I asked for my appointment to be rescheduled.
I arrived tonight for my rescheduled appointment and spied two other people in the waiting room. I asked if he was running on time and I was politely told that he was not. I asked if it was always like this and the receptionist told me it always is, that he is a concierge doctor and spends an hour with his patients. I asked how long my appointment would be and she somewhat timidly told me at least another half an hour. Seeing as he was with a patient and had two others waiting to see him sitting in the waiting room. I surmised that, that would mean that I would have to wait near another two hours to be seen as I was told that he spends an hour with his patients. I told the receptionist that, that was unprofessional, and why would you schedule my appointment for a time if he could never keep it. She informed me that every patient is different and have different needs. Having my own patients I understand that basic concept, however, I also understand that people have busy lives and doctors like this do not actually care about their patients and that the only person in the world whose time is important is the doctor himself.
I left.
Attached are some pictures of the doctors office I took the last time I was there. It was just as filthy today. I've decided not try to see Dr. Krueger in his nightmare sleep clinic, and instead find another doctor who can keep commitments to his patients.
I arrived tonight for my rescheduled appointment and spied two other people in the waiting room. I asked if he was running on time and I was politely told that he was not. I asked if it was always like this and the receptionist told me it always is, that he is a concierge doctor and spends an hour with his patients. I asked how long my appointment would be and she somewhat timidly told me at least another half an hour. Seeing as he was with a patient and had two others waiting to see him sitting in the waiting room. I surmised that, that would mean that I would have to wait near another two hours to be seen as I was told that he spends an hour with his patients. I told the receptionist that, that was unprofessional, and why would you schedule my appointment for a time if he could never keep it. She informed me that every patient is different and have different needs. Having my own patients I understand that basic concept, however, I also understand that people have busy lives and doctors like this do not actually care about their patients and that the only person in the world whose time is important is the doctor himself.
I left.
Attached are some pictures of the doctors office I took the last time I was there. It was just as filthy today. I've decided not try to see Dr. Krueger in his nightmare sleep clinic, and instead find another doctor who can keep commitments to his patients.
09/06/2023
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I drove almost an hour to see Dr. Lown today, and honestly I would have driven several more. He just goes the extra mile. He's extremely thorough and determined to figure out what's wrong with you and the best course of treatment. I finally feel like I have an ally. His office staff is extremely friendly and professional as well. Highly recommend!
07/29/2023
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I highly recommend Dr. Lown. I have been a patient of Dr Lown for over 5 years. He is the best doctor that I’ve ever had. I have never felt rushed , he really takes the time to listen to all my issues and truly cares. CPAP has been life changing for me. I consider myself in shape but as a life long weight lifter I have a very thick neck. This seems to have been missed by every other doctor I’ve seen in the past….but not Dr Lown. He is very thorough and knowledgeable. If you live on Long Island , go see Dr Lown and you will be very glad that you did! Even if you don’t have sleep apnea, he is an outstanding PCP. I am very thankful to have found Dr Lown, thank you for all that you do!
05/15/2023
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was not a helpful visit.. the dr spent time with me which i appreciate, but there was a feeling of condescension.. either way, i was told i would absolutely need a cpap, turned out a year later, i reversed it with very mild breathing practices.. lots of scary language, and then told it can't resolve without a device. i guess they don't keep up with things.. just a little research helped me resolve the problem ive been having for years.
03/16/2023
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Fantastic
03/02/2023
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Dr Lown diagnosed my husband with a blood cancer that specialists overlooked. This physician digs deeply when test/lab results give him cause for concern. My husband received the treatment he needed and is whole again. Dr Lown’s care of both of us as his patients for the past couple of years has been unmatched by other physicians we’ve encountered. He is a brilliant and dedicated doctor who makes himself accessible and is invested in his work.
08/18/2022
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My first visit with Dr. Lown and I must say I am very impressed. I am a nurse and take my health to the next level if I feel a provider/specialist do not feel concern regarding my care, symptoms and concerns. I am thankful that I found him. He is highly recommended by all means. God sent.
02/23/2022
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Dr. Lown is very caring about the patient's health and takes the time to address health concerns. He is very knowledgeable and clearly explains what is going on with test results and what is the best plan of action for you. I trust Dr. Lown's recommendations for my health and follow them.
05/28/2021
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In our opinion, Dr Lown is "God Sent" in our lives. My husband is a Physician and I am a Nurse Practitioner, having said that, we know what we're looking for from our Internist, which unfortunately we had not found with all of our past Internists. To start off, Dr. Lown is not just an internist in our experience, he is like a "walking medical encyclopedia"....at least that's how I refer him....whenever I recommend him to my patients, family, and friends. Dr. Lown has helped and resolved multiple medical issues for us successfully, and then there are times when he refers us to see a specialist when needed....and we have been thoroughly satisfied with all of his referrals. We have referred our patients, family and friends to Dr. Lown, and the feedback from all of them has been mutual, that he is an excellent Doctor. We need more of Dr. Lown to fill the gap between Doctor-Patient relationship and medical care. Before I end my long review, I would like to add that his office staff is worth mentioning, they are professional, pleasant, and very helpful.
03/22/2021
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Dr. Lown is an incredible physician. I have been overly impressed with him and his staff. They are all very friendly and accommodating. He really takes his time to get a good history. I am a nurse myself and am quite picky about the physicians I use. I have been telling everyone about Dr. Lown! You won't be disappointed!
02/17/2020
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HE'S MORE THAN MY DOCTOR HE'S A DEAR CARING KNOWLEDGABLE FRIEND AND ADVISOR SIMPLY THR BEST
12/02/2019
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Dr Lown is by far the best doctor I’ve ever been to. Unlike most doctors, he takes his time with you and makes sure he addresses everything you might have going on. His staff is friendly and will do what they can to accommodate you. I can’t recommend this office enough!
07/30/2019
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Best Dr. Around by far and I've been to a lot!
Sincerely cares about his patient's and takes the time to listen!
I would highly recommend him!
Sincerely cares about his patient's and takes the time to listen!
I would highly recommend him!
07/21/2019
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My first experience and it was very positive. Dr Lown was great. Sleep study was very thorough. Elizabeth was professional and explained everything. Over all went very well. I would highly recommend.
07/19/2019
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Best doctor Ive ever been to. Im very lucky to have him as my doctor, I wouldn't go to anyone else, no one else compares!
03/17/2019
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Thank you Dr Lown.
I have been under the treatment of Dr Lown for a few months now. He is very patient with my questions and concerns. He shows that he truly cares about my well being. He is very knowledgeable about what he does and about the equipment he recommends. The staff is friendly and I also have seen his otherdoctor on staff. Dr Tom Yarribino who is also just as passionate about helping his patients. If you are in need of sleep as I was desperately seeking than I HIGHLY RECOMMEND YOU GO SEE DR.LOWN. THANK YOU AGAIN.
I have been under the treatment of Dr Lown for a few months now. He is very patient with my questions and concerns. He shows that he truly cares about my well being. He is very knowledgeable about what he does and about the equipment he recommends. The staff is friendly and I also have seen his otherdoctor on staff. Dr Tom Yarribino who is also just as passionate about helping his patients. If you are in need of sleep as I was desperately seeking than I HIGHLY RECOMMEND YOU GO SEE DR.LOWN. THANK YOU AGAIN.
10/15/2018
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awesome and knowledgeable physician will definitely recommend him..great staff too..
08/27/2018
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Dr Lown is the desired state of medicine today! In addition to being a highly skilled physician he has 2 qualities missing from many current healthcare providers. First he genuinely cares about his patients and second he listens intently when you speak to him. I am treating with Dr Lown for sleep apnea. I’d prefer to not need his services, but this is the card I was delt. I have referred 10 friends and family members to him and all share my sentiments on the quality of care and positive results he has brought to all our lives. If you struggle with the decision to consult with a sleep medicine specialist, struggle no more. I recommend him without hesitation.
04/26/2018
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Without question, Dr. Lown is the best, most knowledgeable and caring doctor I have ever known. I along with both my parents have been patients of his for many years and could not be happier with the care, treatment and advice we have received from him. He is truly interested in helping his patients receive the best possible care & outcome and never even remotely rushes you like many other doctors do nowadays. His staff is excellent, knowledgeable and very friendly. You would be very fortunate to have the remarkable Dr. Lown as your doctor!
Frequently Asked Questions
Doctors who operate in the MDVIP models typically see far fewer patients than traditional primary care doctors. That gives them more time to develop deeper doctor-patient relationships that can lead to better outcomes. They can also offer conveniences that most primary care doctors can’t, including same- and next-day appointments. They’re available after hours for urgent matters. And they have time to focus on prevention. That focus begins with the MDVIP Wellness Program, which patients pay for with their annual membership fee.
Most MDVIP-affiliated primary care practices accept insurance (your physician can tell you whether they accept your specific insurance plan). Your annual fee pays for preventive care medical services that insurance usually doesn’t cover (e.g., advanced diagnostic testing and screenings). Your MDVIP-affiliated physician will continue to bill your insurance and charge copays, co-insurances and deductibles as he or she currently does for other medical services like sick visits.
MDVIP makes wellness and prevention easier by providing your physician with innovative tools and technology. MDVIP supports your physician’s practice and seeks to eliminate barriers to a positive healthcare experience. Your doctor will determine whether and how to incorporate these tools at his/her discretion.
**The message above is a personal introduction from the physician, intended to help you get to know them better. The views, opinions, and statements expressed above are solely those of the physician and do not necessarily reflect the views or positions of MDVIP. This content is intended for general background purposes only and does not constitute medical advice, diagnosis, or treatment. Any mentions of expertise or quality of care are personal expressions and should not be interpreted as guarantees of performance or outcomes.