About Jonathan Brown, MD
Jonathan Brown, MD, an internal medicine physician at Endeavor Health, provides primary and preventive care for adults across all stages of life. With more than 25 years in practice, he prioritizes strong doctor-patient partnerships built on trust, open communication and mutual respect. Dr. Brown aims to create a welcoming, nonjudgmental environment where patients feel heard, safe and empowered to take charge of their health.
My endeavor
My endeavor is to connect with patients to guide them to their goals—the goals they desire and the goals I believe are appropriate for their health.
Care philosophy
I work to form a partnership with each patient. I aim to guide and support them by listening without judgment and offering the best options for their health. If a patient feels safe and understood, we can better work together to reach the right outcome.
Overview
- Gender Male
Procedures performed (1)
- Pap smears
Endeavor Health Medical Group
49 S. Waukegan Rd., Suite 100
Deerfield, IL 60015-5204
Deerfield, IL 60015-5204
Medical School
-
1994Northwestern Feinberg School of Medicine
Residencies
-
1997Internal MedicineNorthShore University HealthSystem
Board certifications
-
1997Internal MedicineAmerican Board of Internal Medicine
Reviews (211)
January 29, 2026
Dr Brown was patient and listened to my medical explanations.
January 29, 2026
Dr Brown is great, been his patient for two decades
January 29, 2026
Knowledgeable, friendly, and always very helpful
January 28, 2026
Excellent!!!
January 25, 2026
Dr. Brown is very caring, good listener and understands my issues.
January 25, 2026
Made me feel respected
January 24, 2026
I'm very satisfied
January 22, 2026
Dr. Brown is a very caring and responsive. MD. Same day service very much appreciated.
January 20, 2026
Dr Brown is terrific and instills confidence about his practice of medicine. I am blest to be his patient. The prep team was courteous and efficient. All in all, This experience was a 10+ out of 10. Well done!!!!!
January 14, 2026
Dr Brown and staff never make me feel like there are rushing me through my appt. My annual physical exam is very thorough. All my concerns are thoughtfully addressed.
January 10, 2026
Outstanding
January 9, 2026
Dr. Brown is a caring and understanding doctor who takes the time to listen to your concerns. An excellent doctor that has been my PCP for nearly 20 years.
January 9, 2026
Doctor Brown, answerd my questions, to my satisfaction. He is a very good doctor
January 8, 2026
Dr. Brown is a great doctor! Very professional!
January 8, 2026
Competent caring and knowledgeable practitioner! Had a lot of patience and focus!
January 8, 2026
Overly pleased. I couldn't ask for a better doctor than Dr. Brown. Very knowledgeable, friendly, caring, nonjudgmental, patient, never rushed, and a great sense of humor!
January 8, 2026
I have been a patient of Dr Brown for many years . He is always attentive and answers my questions.
January 6, 2026
Dr. Brown is the finest, most caring Doctor that it has ever been my utmost pleasure to work with.
January 3, 2026
I have known him for many years and also had the honor of working for him as a nurse in internal medicine, and have sent many patients to him. He is a gem that you should appreciate, be kind to and keep. I ws happy to find an insurance that Endeavor accepted so I could remain with him.
December 29, 2025
Excellent care and concern
December 25, 2025
He takes the time to listen and responds very timely
December 21, 2025
Dr Brown has always been responsive and concerned. I never felt rushed.
December 20, 2025
Very good responsiveness and care provided by Dr. Brown
December 19, 2025
Dr Brown is always great. I also really appreciate that I could make a next day appointment
December 17, 2025
Dr. Brown has always been very thorough and listens to your needs.
December 14, 2025
Dr Brown has always shown the utmost attention to my care.
December 12, 2025
Dr Brown is the best!
December 8, 2025
My care provider is Dr.Brown. He is an outstanding, knowledgeable and caring doctor. I am very happy to have him as my physician. Thank you Dr.Brown!.
December 6, 2025
Dr. Brown is kind, competent and knowledgeable.
December 6, 2025
Dr. Brown is the best of the best. Knowledgeable doctor, knows all about patient, and wonderful and kind bedside manner.
November 30, 2025
Dr. Brown is excellent.
November 24, 2025
Dr. Brown was extremely patient and thorough. It was nice to have him do my pre-op appointment.
November 24, 2025
Always answers any questions about my health concerns and offers guidance to the best solution for my concerns.
November 22, 2025
Dr Brown has always provided excellent medical care, showing great experience, knowledge and care
November 21, 2025
Dr. Jonathan Brown - I felt very comfortable the way he treated me. He was very patient hearing my comments, problems. In fact, right then and there, I told him that - "you are one of the few doctors that I felt this level of comfort". He was very respectful.
November 16, 2025
Everything you want in a doctor: listens, knowledgeable and caring.
November 15, 2025
Dr. Brown is wonderful. He takes his time and thoroughly exams and explains everything clearly he has my deepest gratitude for his professionalism and kindness.
November 13, 2025
Kind, understanding, compassion, and very knowledgeableattentively
November 12, 2025
Johnathan Brown is one of my favorite doctors! He is easily approachable and very knowledgeable!
November 9, 2025
Dr. Brown takes the necessary time & steps to help. He listens very carefully, researches for more information, explains in detail every step of the way. He cares about the entirety of the patient. Not just the symptoms, the overall person. Friendly thoughtful & kind.
November 8, 2025
He is excellent! He is very knowledgeable And will always respond quickly to messages
November 8, 2025
Dr. Brown has been my doctor for many many years, and Always makes sure my medical condition is the best it can be.
November 3, 2025
I believe that Dr. Brown is committed to offering the best care, and is genuinely concerned about my health
November 2, 2025
Dr. Brown was good, but my appointment time was changed by the system and I had to call in to verify my appointment.
November 1, 2025
Dr.Jonathan Brown is intelligent , thorough, and kind. My husband and I are very pleased with the quality of our health care..
October 31, 2025
Dr. Brown, as always, comes across as a highly professional and knowledgeable physician, and is very gracious and personable at a personal level.
October 26, 2025
Dr Brown Is very caring and extremely efficient. My husband also sees him and we are very happy with him. In fact, I recently received notification that Dr B would not be covered under my Insurance plan. This was extremely upsetting to me and I wasn't about to lose him as my primary Dr so I I called my insurance agent to find a new policy.This is how good and important he is to my husband and me.
October 25, 2025
Never been with Dr. Brown for years and I am grateful for his and his team's professional and caring approach to my healthcare!
October 25, 2025
Great, informative, knowledgeable
October 23, 2025
Dr. Brown is very reassuring and helpful. He truly listens and never rushes our appointments. He has helped with a variety of small health issues and I am never hesitant to ask a question in my appointments and in the portal. Thank you Dr. Brown!
October 20, 2025
HE ANSWERS ALL MY QUESTIONS. I NEVER FEEL RUSHED. I HAVE GREAT CONFIDENCE IN HIM
October 17, 2025
It was thorough, not rushed at all.
October 17, 2025
John Brown is a pleasant well informed doctor. He always has a happy demeanor and he is very thorough. The location in Deerfield is very comfortable with adequate parking. The staff is always on task. As one might expect the visit is always late with regard to the original appointment largely because John Brown spends time with us at each of the appointments.
October 16, 2025
Dr. Brown is always quick to respond to my medical needs. He's kind, professional and patiently listens.
October 13, 2025
Dr. Brown is a phenomenal physician. I cannot conceive seeing any other doctor. I appreciate The length of time he spends with me as well as the sincere interest he demonstrates in my wellbeing.
October 8, 2025
Dr Brown is superb diagnostician and relates well to his patients, I have full trust and confidence is him.
October 7, 2025
As usual, I was treated like Family with a smile!
October 7, 2025
Dr. Brown is the best physician he has been my doctor for almost 20 years. I love his bedside manner. I started going to him when I worked in Deerfield. I now live 40 minutes away and I continue to go to Dr.Brown. I often wonder what I will do when he retires.
October 5, 2025
Dr. Brown has been my GP for many years. He continues to take very good care of my issues as they arise in a concise, professional, kind and effective manner.
October 2, 2025
Very good doctor
September 27, 2025
I always leave feeling well taken care of by Dr. Brown and the staff in Deerfield.
September 25, 2025
Dr. Brown is wonderful! He is patient and listens to what you are going thru. I have seen him for years, and I wouldn't want any other physician for my primary!
September 25, 2025
Dr. Brown is the best!!!
September 21, 2025
Dr. Brown thoroughly evaluated my health, answered my questions, and made recommendations to follow-up with. I appreciate his kindness and knowledge.
September 21, 2025
Dr brown is a very caring, effective physician.
September 16, 2025
Dr. Brown listens closely to what I say, answers all of my questions completely, and provides me with all of the information I need to stay healthy.
September 15, 2025
Vergy good. Takes his time and listens.
September 14, 2025
Jonathan Brown is an extremely thorough and knowlegeable physician who stays on top of his patients' needs and has an easy-going manner.
September 13, 2025
Dr. Brown is a kinds, warm, knowledgable, and responsive provider who is an excellent and thorough diagnostician.
September 9, 2025
Appreciate Dr. Brown responding quickly and getting me in to be seen the next day
September 1, 2025
Dr Brown and his team are very accommodating and professional.
August 28, 2025
I have been a patient of Dr. Brown for a very long time. He is very good. A caring physician.
August 25, 2025
Thank you for your thoughtfulness.
August 23, 2025
Very good
August 22, 2025
I appreciate Dr. Brown's professionalism and caring attitude.
August 21, 2025
I like Dr. J. Brown so much I recommended him to my daughter.
August 13, 2025
Dr Brown really seemed to care about my concerns, and was thorough and compassionate in addressing them.
August 13, 2025
Dr. Brown is an excellent doctor.
August 9, 2025
Dr Brown is very knowledgeable, is a good listener, and makes sure he answers all your questions. He shows genuine concern for his patients.
August 8, 2025
Helpful and understanding.
August 2, 2025
Dr. Brown was very caring kind and thorough
July 31, 2025
Very professionalneedsmet
July 31, 2025
Dr. Brown made the visit very comfortable and pleasant. He listened and made suggestions. Very professional.
July 31, 2025
Dr. Brown is exceptional.
July 29, 2025
Dr Brown is wonderful. He is very patient and has a great bedside manner. I would refer him to anyone. I have been his patient for many years.
July 27, 2025
He takes the time to understand the whole picture of what's going on with my health
July 27, 2025
always compassionate, caring with sound advice
July 26, 2025
Able to get me in quick. Took what I said seriously. When scheduler, nurse, and Dr all heard me talking about chest concerns they took me seriously.
July 24, 2025
He listens, he asks, he finds the bottom of the problems, he explains, and he cares.
July 23, 2025
Dr Brown is highly knowledgeable and pragmatic and is a valued health care provider.
July 21, 2025
Always have a great experience, Dr. Brown and all the staff are friendly and very helpful.
July 16, 2025
Dr. Brown listened to all my concerns without rushing through the appointment. He explained what was happening clearly.
July 5, 2025
Dr Brown is a very good listener and empathized. Provides good suggestions and insight to any minor problems
July 3, 2025
Dry professional and courteous.
June 29, 2025
Dr. Brown was able to fit me into his schedule when I was having difficulties. I am very appreciative.
June 29, 2025
He is wonderful being personable and knowledgeable.
June 29, 2025
Dr B is great!
June 26, 2025
Dr. Brown is an outstanding physician. He has been caring for myself and my husband for years. He also took care of my sons. He listens carefully and takes my issues seriously. He returns texts promptly and explains things thoroughly. I feel comfortable asking him questions and following his advice and his recommendations if I need to consult with another doctor for my problems.
June 26, 2025
I was treated respectfully, time was taken yo discuss and answer questions. He's personable and low key.
June 24, 2025
Dr. Brown is highly knowledgeable, approachable, and demonstrates a genuine commitment to patient care. He takes the time to listen, communicates clearly, and never makes you feel rushed during appointments.
June 24, 2025
Very responsive to my medical needs. Has been my personal doctor for over 20 years. I have recommended him to my friendd
June 23, 2025
Dr Brown Is always great.
June 20, 2025
Dr Brown is patient, caring, a good listener and makes you feel comfortable while speaking about your health
June 20, 2025
Through the years has helped me find specialists.
June 18, 2025
Very good visit, met all my expectations and was very caring in managing my needs.
June 14, 2025
All good
June 14, 2025
Thorough, thoughtful, and communicative.
June 12, 2025
Great
June 11, 2025
Dr Brown is very attentive, professional and just a very good Doc.
June 10, 2025
Although this was a routine pre-surgery physcal, Dr Brown was thorough, thoughtful, insightful and demonstrated a true professional desire to ease any concerns Imay have.Great guy!
June 8, 2025
Very professional and helpful.
June 6, 2025
Brown is always good with his care.
June 6, 2025
A compassionate doctor.
June 6, 2025
I feel very strongly that when I am meeting with Dr Brown he is completely engaged with me. He is also always responsive when communicating via messaging app
June 5, 2025
Excellent service.
June 2, 2025
Dr. Jonathan Brown is an exceptional physician who combines professionalism with genuine care for his patients. He takes the time to listen attentively, thoroughly explains medical concerns, and ensures that all questions are answered. Her compassionate approach fosters a comfortable and trusting environment, making each visit reassuring. I highly recommend Dr. Brown to anyone seeking a dedicated and empathetic healthcare provider.
May 31, 2025
Dr. Brown has been our Dr.. For many years and does a very complete exam.
May 29, 2025
Everything regarding this visit was great.
May 24, 2025
Dr. Brown is thorough, kind and straight to the point of what needs to happen
May 17, 2025
Very efficient practice. Dr. Brown is excellent, easy to talk with, very knowledgeable and the professionals with him are kind and caring.
May 17, 2025
Dr. Jonathan Brown is not only an outstanding doctor, he has a wonderful bedside manner and truly cares about his patients. My entire family is in his care since he started practice with ENH/NORTHSHORE/ ENDEAVOR. We truly adore this outstanding doctor.
May 15, 2025
Dr. Brown is thorough and knowledgeable.
May 13, 2025
Dr.Brown is one of the best doctors out there. He listens, cares and is very professional.
May 12, 2025
Dr. Brown was wonderful as always.
May 11, 2025
I have been a patient of Doctor Brown for many years. He has always been very professional and caring of my medical needs. I highly recommend him to anyone looking for a new doctor.
May 10, 2025
Thorough, clear communicator, respectful and patient with elderly
May 10, 2025
He is always informative and good bed manners.
May 8, 2025
Doc Brown gets better and better each year. I really like him. Very understanding.
May 8, 2025
Dr. Brown is very nice to talk with and listens well to any concerns I may have and fields all my questions fine.
May 8, 2025
Dr. Brown is the best!
April 28, 2025
Dr Brown has always been an excellent provider
April 26, 2025
Informative
April 26, 2025
As usual, Dr. Brown was helpful and informative.
April 26, 2025
Excellent, he's careful, listens, is concerned, caught a osteoporosis problem by looking at my exray from another doctor. Been with him for decades, wouldn't switch for anything!
April 26, 2025
Dr. Brown is terrific ! He always gets back to me when I contact him! He is always very helpful with my medical conditions!
April 24, 2025
Dr. Brown has always been very responsive and thorough.
April 22, 2025
Dr. Brown was exceptional. He listened, asked questions, and was responsive to my needs. Additionally, Dr. Brown was clearly educated on an exceptionally broad scope of medical issues allowing me to reduce the number of specialists I see. Feeling confident and ease about establishing care with this provider.
April 20, 2025
Dr. Brown is an amazing doctor, so caring and a treasure to the community + practice
April 20, 2025
Dr. Brown is an outstanding doctor who Is knowledgeable and caring. He listens to my concerns and takes the time to address them. I have been seeing him for many years and value his opinions.
April 16, 2025
Excellent!!
April 16, 2025
Dr. Brown is great!
April 15, 2025
Been with Dr Brown for a long time. Like that he takes the time to listen to my concerns.
April 11, 2025
Dr. Brown is very attentive asks lots of questions and I feel well cared for.
April 11, 2025
Dr. Brown listen to my problem and said if didn't get better to give a call back.So far the cream is working. He is a caring Dr.
April 10, 2025
Dr Brown and staff are very attentive and supportive to my health concerns.
April 8, 2025
Dr. Brown has very good communication skills & very good at suggesting & implementing solutions to solve health problems.
April 8, 2025
Dr. Brown is absolutely wonderful! He is caring, a good listener, and flexible in his approach. Endeavor is lucky to have him!
March 30, 2025
Dr Brown is very sensitive to my needs.
March 29, 2025
Professional
March 29, 2025
Dr. Brown is exceptional and caring health care provider. I feel at ease and well taken care of.I would recommend Dr. Brown to my family, colleagues and friends.
March 29, 2025
I have been a patient of Dr. Brown's for many years and have always received kind, thoughtful and skilled care from him and his team. This visit was no different. I trust him and his concern and recommendations. I have also referred a dear friend to him and she is equally pleased and confident in his care.
March 28, 2025
Very consciencious and concernd
March 28, 2025
Dr. Brown always shows genuine care in your overall health. He listens patiently, answers all of your questions and is thorough in the healthcare he provides for you.
March 27, 2025
I've had 3 appointments with Dr. Brown, and am very happy to have found him. He's just what I was looking for in a primary care physician.
March 26, 2025
Dr. Brown is excellent.Very caring, professional and extremely knowledgeable.
March 21, 2025
Excellent service
March 21, 2025
Dr. Brown was great.
March 21, 2025
The care provider was excellent. He discussed his thought process on his diagnosis. What he prescribed and instructed me to do helped provide me relief. He gave me very clear instructions on what to do if my health issue did not improve. I am an accomplished public figure and yet in the past I have felt that I've not been treated with the appropriate respect that all patients should receive. Dr. Brown was a nice surprise.
March 15, 2025
He is an amazing doctor
March 14, 2025
Dr. Brown is a very professional, caring physician. He listens carefully to what I say explains everything, and answers my questions completely
March 14, 2025
Dr Brown is a well qualified and caring person who I have complete trust in. He is responsive to my needs and understands my concerns and those of my family.
March 12, 2025
Dr. Jonathan Brown is a caring and excellent doctor.
March 6, 2025
Doctor listened carefully to my issues and I felt that he cared
March 5, 2025
Great person!
March 5, 2025
Dr, is thorough easy to talk and explain issues and concerns and gives the patient time during the exam without feeling rushed to end thw visit
March 2, 2025
Dr. Brown thorough
March 1, 2025
Excellent doctor, very knowledgeable and patient.
March 1, 2025
Very caring
February 28, 2025
Dr Brown is very thorough, personable and professional. He listens and always answers my questions. I never feel rushed. He is excellent responding to messages sent through the portal.
February 28, 2025
Dr. Brown is a considerate and caring man who listens, really listens to what I am saying about my health.
February 27, 2025
Intelligent, knowledgeable, helpful, respectful, friendly
February 27, 2025
A good visit.
February 27, 2025
Dr Brown is wonderful. Very patient and passionate. I feel very comfortable with him. I have been a patient for years.
February 26, 2025
Nothing. He was fine.
February 26, 2025
Very pleased with Dr. Brown & Staff
February 25, 2025
Dr Brown is a great listener. He then recommends good suggestions for improving health. He also know what labs and exploration may be needed if not feeling well. He know medications very well too. And overall, Dr Brown has pleasant and non judgemental attitude when treating me.
February 21, 2025
Always gives thoughtful answers to my questions and what is happening to bring me in for my current problem.
February 21, 2025
Dr. Brown is a great doctor. Have been seeing him for 20 years.
February 20, 2025
I would say that Dr. Brown is an exellente and caring doctor. He is very knowledgeable on medicine. I love my primary doctor.
February 20, 2025
Everyone should have an internist like Dr. Brown!!!
February 12, 2025
Nice, friendly, easy to understand.
February 12, 2025
Excellent and always responds quickly
February 7, 2025
He takes his time during the visit and answers all questions asked.
February 6, 2025
Dr Brown is THE BEST. For over 20 years he's been my PCP and I'm thankful for that.
February 4, 2025
A very kind and caring doctor.
February 3, 2025
Quick response
February 2, 2025
Jonathan Brown has been my Internist (PCP) for the last 7 years. Very satisfied.
February 1, 2025
Excellent care.
January 31, 2025
Dr. Brown is very kind and patient. He is not an alarmist which I appreciate.
January 31, 2025
Dr J Brown is an excellent doctor
January 24, 2025
Dr. Brown is an excellent doctor, listens closely, is highly knowledgeable and was a pleasure to see!
January 23, 2025
Dr Brown is very friendly and takes the time to really get up to speed on what if anything has developed since my last physical. Any questions I had were explained in plain terms and was understandable. I feel comfortable that he is taking the time to understand my condition in order to provide me the proper care.
January 23, 2025
Dr Brown always takes his time and listens to my concerns
January 23, 2025
Dr brown listens and gets the right tests ordered and gives great medical advice
January 22, 2025
Great!
January 21, 2025
Dr Brown is amazing. Takes the time to listen before interjecting
January 18, 2025
Exceptional Care in a relaxed professional atmosphere
January 18, 2025
I always appreciate Dr. Brown's care.
January 17, 2025
Has also listened and answered any questions.
January 17, 2025
I appreciate my doctor so much!
January 15, 2025
Dr. Brown is an exceptional physician-kind, attentive, and thorough. Highly recommended!
January 15, 2025
Excellent
January 14, 2025
I wish the rest of the hospital and support staff could be as responsive.
January 11, 2025
Dr. Brown is the best. Great physician. I come to "Endeavor" for him.
January 11, 2025
Very attentive and knowledgeable.
January 10, 2025
Dr. Brown is a responsive, caring doctor who provides thoughtful and sound medical guidance. I have referred friends to him who feel the same way.
January 10, 2025
Very helpful & professional.
January 7, 2025
The best NorthShore has.
January 3, 2025
Dr. Brown addressed my concerns and I never felt rushed as I explained situation.
January 2, 2025
This was my first appointment with Dr Brown He was very personable and friendly He asked a lot of questions to review my health history He was very thorough and I appreciated his attention to my issues He is now going to be my primary doctor
January 1, 2025
Dr Brown has been my doctor for many years he is always concerned about my health.
To find out if this healthcare professional accepts your insurance plan, it is important to verify coverage with your health insurance company. Verify your coverage by either calling the number on your insurance card or confirming coverage through your insurance company's web site or mobile app.
Endeavor Health and its hospitals make this provider profile available to inform patients and support their selection of a care provider.
