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Karthik Subbu, MD

4.9

393 ratings Read Reviews

Northwestern Medicine Regional Medical Group

Primary Specialty

Endocrinology

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Practice Focus Areas

Adrenal Disorders
Diabetes
Osteoporosis
Parathyroid Disease
Pituitary Disorders
Thyroid Disease

Education

Medical Education:: MD, Eastern Virginia Medical School - 2018
Residency:: Indiana University School of Medicine - 2021
Fellowships:: University of North Carolina Hospitals - 2023

Languages Spoken

Tamil

Board Certifications

American Board of Internal Medicine - Endocrinology, Diabetes & Metabolism (Certified)
American Board of Internal Medicine - Internal Medicine (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medicine Regional Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Delnor Hospital

Ratings and Reviews

At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care.

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Overall Rating

4.9

4.9

393 Ratings

Reviews from Patients

94 Reviews

Reviews from Patients

94 Reviews

April 24, 2024

5.0

Very good doctor and lots of knowledge. Great bedside manner.

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April 21, 2024

5.0

Dr. Subbu was very professional, knowledgeable, and friendly. We spoke about a care plan for my condition. He gave me many different options.

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April 20, 2024

5.0

Very attentive and knowledgeable. Answered all the questions and reassured me that the thyroid issue was under control and explained everything to me and answered all my questions and gave treatment plan and ordered required testing

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April 19, 2024

5.0

He good what patient and he expand to me.

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April 18, 2024

5.0

Like how he explained all the steps we're taking to get me healthier.

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April 18, 2024

5.0

Doctor is very specific in directing my bone health and always explained the best option of treatment.

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April 18, 2024

5.0

Dr. Subbu was professional, informative, and attentive.

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April 14, 2024

5.0

Great bedside manner.

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April 13, 2024

5.0

He was a wonderful doctor and person. I felt cared for and respected. He explained to me what he was doing at every moment. He was happy to answer every question. Easily my top 5 doctor visits if not top 3.

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April 09, 2024

5.0

He listens, comprehends and responds to what I have to say. I feel very fortunate to have him as my doctor. Very personable, I would recommend him to my parents, children, and friends. He found my wallet and brought it out to me before I left HIMSELF. He really cares about his patients. Do not let him get away, give him a raise!

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April 08, 2024

5.0

Dr. Subbu was great at listening to the issues and providing options.

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April 05, 2024

5.0

Doctor Karthik has been able to give me a good appreciation of the function of TSH and related hormones.

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April 03, 2024

5.0

He was very thorough and spent time with me as is patient.

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April 02, 2024

5.0

personable, listening not just hearing what I had to say when asked asked questions. very detailed which is good and right to the point.

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March 29, 2024

5.0

A very caring doctor, I felt like he was very concerned about my well-being. I did not feel rushed in my appointment very thorough.

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March 29, 2024

5.0

Willingness to hear my perspective and discuss options and goals.

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March 26, 2024

5.0

Extremely knowledgeable doctor

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March 22, 2024

5.0

He explains everything to the patient and gives him all the information one needs and one is satisfied.

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March 19, 2024

5.0

He is very knowledgeable and empathetic; feel blessed to have the medical care team I do at Northwestern Medicine.

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March 19, 2024

5.0

He is very kind and listened to me. Enlighten me on when to be taking medication if I miss a dose that no one told me about after years of being on medication!

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March 18, 2024

5.0

Dr SUBBU IS VERY INTELLIGENT AND CARES ABOUT PATIENT'S OVERALL HEALTH AND WELL BEING. HIS BEDSIDE MANER IS TOP OF SCALE. THANK YOU SIR.

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March 03, 2024

5.0

PERSONAL TOUCH

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March 01, 2024

5.0

I liked Dr. Subbu because he listened and came up with a plan for my recovery

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February 28, 2024

5.0

He made me feel like he new what I wanted to know

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February 27, 2024

5.0

For being the first time meeting Dr. Subbu, he was very detailed in my current condition as well as history of when I was diagnosed. His interest in the fluctuations of my thyroid test levels did not go unnoticed. Very happy in knowing that he cares for the patient.

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February 27, 2024

5.0

Fantastic person

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February 27, 2024

5.0

Attention to my health needs and adjustments to achieve my personal health goals.

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February 27, 2024

5.0

Very caring and knowledgeable

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February 27, 2024

5.0

Very caring and knowledgeable

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February 26, 2024

5.0

Very informative, and personable.

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February 25, 2024

5.0

He was polite, smiley, friendly and had a sense of humor. Did not rush me out the door. Answered all my questions.

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February 23, 2024

5.0

Dr. Subbu took care to listened to my concerns, the appointment was not rushed. I felt heard and not dismissed.

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February 21, 2024

5.0

Dr. Subbu is patient and kind. He makes sure he explains new information carefully until you have fully grasped all the details. You will leave with helpful print outs to refer to later.

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February 16, 2024

5.0

After years of unsuccessful attempts to control my diabetes, I walked into Dr. Subbu's office for my first visit. He educated me on diabetes care in a way that gave me confidence that I would be able to take care of my diabetes management. And I am!

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February 07, 2024

4.0

Very fast diagnosis

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February 05, 2024

5.0

Very knowledgeable and nice manner.

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January 31, 2024

4.0

He listened and showed he cared

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January 28, 2024

5.0

Very nice and caring doctor

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January 26, 2024

5.0

See above. Great Dr. explains everything.

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January 25, 2024

5.0

For being there for the first time I was very pleased with his concerns and order labs to find the cause of my symptoms

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January 25, 2024

5.0

He is very knowledgeable and attentive about care.

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January 23, 2024

5.0

I was checked in quickly and was able to see Dr. Subbu soon after that. First time meeting this Doctor. He listened to me and had good feedback for me. He was friendly with a good "bed side manner".

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January 17, 2024

5.0

He is a great Docter!

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January 17, 2024

5.0

Very kind and understanding. Great at helping me understand my medical issue.

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January 15, 2024

5.0

Dr. Subbu take time to listen to you may it be questions you have or thoughts. Never in a rush to get done with the appointment you have with him. He offers other suggestions for you to try.

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January 12, 2024

5.0

They have the best doctors and nurses they help you right away

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January 10, 2024

5.0

My doctor is very thorough. He listens to my concerns.He is knowledgeable and very patient.

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January 10, 2024

5.0

Knows his stuff. Learnedbsome new things. Good visit.

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January 08, 2024

5.0

Dr. takes the he time to explain everything he is thinking and asks our opinion.

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January 06, 2024

5.0

Provided very helpful insight regarding my lab results and treatment plan.

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January 01, 2024

5.0

Very knowledge and seemed to genuinely care about my health.

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December 31, 2023

5.0

He is very comforting and knowledgeable and willing to explain what's going on with my issue.

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December 30, 2023

5.0

Dr. Is very knowledgeable, personable and listens to your medical concerns and needs. He does not impose unnecessary medications on you. Five stars from me!

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December 27, 2023

5.0

Listened to my concerns and was very easy to talk to! Made me feel comfortable.

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December 19, 2023

5.0

Dr Subbu is one of the best doctors I have had. Very knowledgeable, explains everything thoroughly, and so personable!

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December 15, 2023

5.0

Very patient took the time out to let me know the plan he had for my diabetes.

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December 12, 2023

5.0

I would highly recommend Dr.Subbu!!! First I appreciate for really showing genuine concern for my health and listening to what my concerns were with diabetes and thyroid. My appointment went extremely well!

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December 12, 2023

5.0

Very thorough

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December 07, 2023

5.0

Dr. Subbu is very thorough. He listened to my concerns and answered all of my questions. He has a great personality as well. That's very important! I felt as though as I was in great hands!

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December 05, 2023

5.0

Dr. Subbu is a knowledgeable, professional, and friendly doctor. He takes the time to problem solve with you.

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November 29, 2023

5.0

Very good doctor explains everything very well

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November 28, 2023

5.0

He was friendly and approachable. He answered my questions thoroughly and patiently. I appreciated his personable nature.

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November 28, 2023

5.0

He kind compassionate. Listens, takes time

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November 27, 2023

5.0

He listened intently, gave needful education and asked amazing questions.

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November 25, 2023

5.0

Dr. Subbu took the time to answer all of my questions, was reassuring and very educational.

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November 22, 2023

5.0

DR Subbu is very professional and helpful.

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November 14, 2023

5.0

Very good. Addressed questions and was very helpful.

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November 13, 2023

5.0

Dr. Sabbu is an active listener. It was very obvious that he was making every effort to deliver the gold standard of care. And he did!

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November 08, 2023

5.0

He takes his time with you. Works on getting the problem solved. Listens to what you have to say.

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November 08, 2023

5.0

Very knowledgeable and professional

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November 07, 2023

5.0

Very thorough and answered all of my questions.

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November 03, 2023

5.0

Dr. Subbu is outstanding. He listens, informs, explains, is reasonable. His knowledge is far reaching, he researches unfamiliar topics. Most important he works with the patient to determine the best solution.

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November 03, 2023

5.0

Dr. Subbu was extremely nice and I was very happy with my visit. He was very knowledgeable and made me feel SO comfortable. I went in scared and nervous and came out feeling like we were going to get to the bottom of whatever is wrong! He had an answer for every question I had!

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November 02, 2023

5.0

Good service

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October 28, 2023

5.0

They are very professional

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October 25, 2023

5.0

Very informative easy to talk to

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October 24, 2023

5.0

He was very helpful and went an extra mile to answer my questions over the video

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October 18, 2023

5.0

Explained everything so perfectly.. even took time to hear my wife out! Lol this will be a place that I will always recommend! Excellent staff

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October 16, 2023

5.0

A very knowledgeable and patient-focused doctor

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October 12, 2023

5.0

Dr. Subbu was just excellent. Good communicator, easily tied together, disparate test results and terms and explained it in plain English and aloud for actions and questions. It was excellent at enabling me as a patient to be a part of the process other than just provide test results.

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October 05, 2023

5.0

Doctor Karthik Subbu had lots of patience, answered all of my questions, He was very kind and professional and explain me all the information about my health. I highly recommend him Thank you for taking care of my health.

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October 04, 2023

5.0

Dr. Subbu was super nice and approachable, explained everything in simple terminology, and he even accommodated to my schedule with a video appointment

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September 29, 2023

5.0

He is very knowledgable with a friendly demeanor.

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September 29, 2023

5.0

Dr. Subbu, who I saw for the first time today, listened to everything I wanted to ask him, answered all my questions and was very knowledgeable and kind!

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September 28, 2023

5.0

Cares about patients

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September 27, 2023

5.0

Great doctor who explains everything tome.

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September 25, 2023

5.0

Dr.Subbu is incredibly personable and very friendly. He is very intelligent and really took the time out to talk to me and showed me he cared. I really appreciate him and I look forward to our next visit. I wish he did family medicine so I can make my primary care doctor also.

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September 19, 2023

5.0

Outstanding Doctor. Kind, Caring, Compassionate and relates to his patients

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September 14, 2023

5.0

because he took his time and gave me a thorough exam

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September 13, 2023

5.0

He listened and seemed to really care. He probably spent way too much time with me, but he actually moved me to action. He explained the biopsy results to me in a way that I could understand.

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September 13, 2023

5.0

Very friendly , listens to your concerns , no rushing, helping me with other issues,

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September 13, 2023

5.0

He is amazing.

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September 08, 2023

5.0

Professional, Kind, Caring, Good at explaining the medication and options

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September 07, 2023

5.0

Dr. Subbu Was so kind and Caring he took time to explain everything to me. He was not in a hurry to leave. He walked me out and gave me my paper work and asked if I had any questions from our visit. I felt so comfortable being in his care.

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External Professional Relationships

Pharmaceutical, device, and biotechnology companies frequently collaborate with basic scientists and physicians within an academic medical center to help advance science and improve patient care. These relationships are important in achieving scientific breakthroughs and in establishing the effectiveness and safety of promising new therapies. In order to assure objectivity in clinical research and patient care, the Northwestern University Feinberg School of Medicine (Feinberg), Northwestern Memorial HealthCare, Children's Hospital of Chicago Medical Center, and the Shirley Ryan AbilityLab have adopted integrity policies that require research and clinical faculty (in full-time, part-time, and unpaid/voluntary categories) to report compensated and uncompensated external industry relationships. Patients are encouraged to discuss these disclosures with their physician as well as to inquire as to how these relationships are overseen by Feinberg. To learn more about our Disclosure and Professional Integrity Policy, and the conflict of interest policies of our joint affiliate survey partners, please go to our Office for Regulatory Affairs Policies page.

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