Measles Information

Karthik Subbu, MD

4.9

584 ratings Read Reviews

Northwestern Medicine Regional Medical Group

Primary Specialty

Endocrinology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Adrenal Disorders
Diabetes
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

584 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

April 16, 2025

5.0

He's nice and goes over everything.

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April 16, 2025

5.0

Very nice hi

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April 15, 2025

5.0

As I said above the doctor explained everything i knew what to expect and I had a very good idea what was going on with my health.

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April 14, 2025

5.0

See above. He soars beyond the rest!

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April 10, 2025

5.0

Good medical care.

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April 10, 2025

5.0

Dr Subbu is great, calming, empathetic and knowledgeable.

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April 09, 2025

5.0

Dr. Subbu took as much time as I needed and answered all my questions

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April 09, 2025

5.0

Dr Subbu is great. He is the kind of doctor I would return to. I appreciate his explantation and insight. He takes the time to address your questions and he will ask questions to see if there is anything else to look into.

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April 08, 2025

5.0

The doctor seems truly interested in my health and is respectful of my thoughts and approaches. He offers good information and explanations to questions and concerns.

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April 07, 2025

5.0

Up to date on all current treatments and solutions

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April 07, 2025

5.0

The doctor was patient and answered all of our questions. He listened and allowed me to participate in my plan of care. He has a very calm demeanor and is very knowledgeable. He is kind and friendly. He seems to be very good at his job and also has great bedside manner. Everything I would hope for in a provider.

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April 05, 2025

5.0

Great patient interaction, caring , explained things well Good followup

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April 04, 2025

5.0

Great Dr. Perfect for me!

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April 03, 2025

5.0

Dr. Subbu is very knowledgeable and strategic when dealing with special living circumstances.

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April 02, 2025

5.0

He explains everything in detail takes the time you need

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April 01, 2025

5.0

Dr. Subbu was by far one of the best doctors I have ever seen. He explained every very clearly and had a wonderful bedside manner.

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March 29, 2025

5.0

Informs, inquires, aware of patient's history.

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March 29, 2025

5.0

Very likeable

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March 26, 2025

5.0

He seems to connect with patients and is willing to explain issues and answer questions.

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March 24, 2025

5.0

Very pleasant appointment Answered all my questions

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March 24, 2025

5.0

He was great!

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March 23, 2025

5.0

Very good bedside manor. Asked good questions and was very professional.

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March 20, 2025

5.0

He is so kinds and we will answer any questions or concerns you might have. Also he try's to give you as much information you need

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March 18, 2025

5.0

Because he nice and he care for the patient.

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March 15, 2025

5.0

Dr.Subbu is the best Endocrinologist he is very professional and knows what he's talking about.

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March 14, 2025

5.0

He listens and truly cares about finding the best solutions

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March 10, 2025

5.0

He is very respectful and explains things very well. I feel very comfortable handling my new diagnosis with the information he has provided and he answers any questions I may have in a way that's easy to understand.

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March 08, 2025

5.0

Dr. Subbu took time to explain things and answer my questions.

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March 06, 2025

5.0

He is very kind and knows exactly what to do to help you and I appreciate that.

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March 05, 2025

5.0

He knows all about the tslim!

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February 28, 2025

5.0

I really like Dr Subbu Extremely personable & direct !

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February 28, 2025

5.0

Very professional and complete.

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February 27, 2025

5.0

He's the best. So helpful and understanding. We really like and respect him

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February 26, 2025

5.0

He is a very good dr.

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February 25, 2025

5.0

Dr. Subbu explained my condition well and the possible outcomes. He had outstanding bedside manner. I would have rated a higher score if possible.

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February 25, 2025

5.0

Smart, efficient and nice personality

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February 24, 2025

5.0

He was very efficient, professional, and answered my questions thoroughly.

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February 21, 2025

5.0

Dr. Subbu is truly one of the best doctors I have ever encountered. Over the past few years, I have seen several endocrinologists within NM, but none have come close to matching Dr. Subbu's expertise, professionalism, and compassionate approach. His depth of knowledge, thoroughness in treatment, and genuine care for his patients set him apart. I am incredibly grateful to have him as my endocrinologist and highly recommend him to anyone seeking top-quality care.

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February 19, 2025

5.0

Like my Doc- endo.. Patient, answers questions, very personable...truthfulness...

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February 18, 2025

5.0

Wealth of information just way cool!!

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February 14, 2025

5.0

He listened well and explained things clearly. I feel like he was actually trying to help me figure out what my issues were.

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February 12, 2025

5.0

He takes his time you don't feel rushed. He listens. Tells you options to help you. Great Dr.

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February 11, 2025

5.0

This is the first time I went to this doctor and he was very nice, explain everything really well and just encouraging. He also listened to me.

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February 11, 2025

5.0

Very throughout.

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February 11, 2025

5.0

doctor was very helpful

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February 10, 2025

5.0

Dr. Subbu is very kind, caring, empathetic, and explains everything well.

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February 05, 2025

5.0

He listens to his patients and is willing to order appropriate tests.

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February 05, 2025

5.0

Did not seem rushed

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February 03, 2025

5.0

Very personable man very caring and yes, I would recommend him to anyone and as a matter fact, we ask him about taking care of our daughter.

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February 01, 2025

5.0

He listens and recommends appropriately. highly recommended

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January 30, 2025

5.0

Dr. Subbu has a very caring and empathetic way of discussing the patient's diabetes.

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January 28, 2025

5.0

Knowledge + bedside manner = looking forward to my next visit :).

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January 27, 2025

5.0

Good doctor

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January 24, 2025

5.0

He was very approachable and gave good, thorough explanations.

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January 24, 2025

5.0

Professional, timely, very personable...great physician!

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January 23, 2025

5.0

Knowledgeable doctor that took the time to explain my situation in a way that was easy to understand. He made sure all my questions were answered. He spook with a caring attitude.

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January 18, 2025

5.0

He is the best!! Listens and answers questions Noticed I had high levels of vitamin D and the day after bloodwork was reviewed he had staff notify me to stop taking it.

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January 12, 2025

5.0

Really good at explaining everything and listening to me. He also took his time and wasn't in a rush.

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January 11, 2025

5.0

Dr Sabbu is amazing, top notch care. A+

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January 09, 2025

5.0

He was very competent.

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January 04, 2025

5.0

From the first meeting, I voiced my wish to reduce the amount of medication. He has listened carefully and has been reducing them while monitoring the progress.

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December 27, 2024

5.0

Karthik is the most passionate and engaged doctor I've ever met! It's life-changing meeting a doctor as thorough as he is.

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December 25, 2024

5.0

He was very concerned regarding my well-being.

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December 18, 2024

5.0

I was very happy with Dr. Subbu's professional and friendly demeanor. He explained my treatment going forward in very easy to understand terms, and left me feeling at ease with my situation.

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December 13, 2024

5.0

Super doctor, listen to what I had to say. I am very happy with my doctor

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December 11, 2024

5.0

He is fantastic and is very caring and knowledgeable.

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December 09, 2024

5.0

Hevis a very good Dr

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December 06, 2024

5.0

Dr. Subbu very knowledgeable and does not rush when seeing me.

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December 06, 2024

5.0

He takes the time to listen and talk to you, he is by far the best doctor I have ever had.

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December 05, 2024

5.0

He's very knowledgeable, very clear in direction.

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December 04, 2024

5.0

Very knowledgeable doctor who listens and cares for the patient

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November 29, 2024

5.0

Dr. Subbu listened and explained things well.

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November 29, 2024

5.0

Great bedside manner and knowledgeable about my needs.

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November 21, 2024

5.0

He was very nice,friendly and very very helpful he's a keeper.

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November 21, 2024

5.0

In addition to the above, he cares about my son.

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November 20, 2024

5.0

He listened to what I had to say. Believe he has a plan an I'm really looking forward to seeing what comes. Think I've found my doctor.

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November 17, 2024

5.0

Very caring person

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November 14, 2024

5.0

He is a good doctor.

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November 12, 2024

5.0

Dr. Subbu was wonderful. My appointment didn't feel rushed, he listened to my concerns, explained things thoroughly, and constantly checked for understanding. One of the best doctors I've seen!

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November 07, 2024

5.0

Dr Subbu listens and explains things for me to help me understand my diabetes.

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November 07, 2024

5.0

Very knowledgeable

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November 06, 2024

5.0

Dr. Subbu strives to create unique programs for me to follow to better manage my Type II Diabetes.

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November 05, 2024

5.0

Dr. was very good, but just does not know enough to help me.

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November 05, 2024

5.0

Showed genuine concern and asked many intuitive questions to understand my condition and concerns.

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November 01, 2024

5.0

He explains everything clearly and is very kind!

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November 01, 2024

5.0

Dr. Subbu explained everything thoroughly and precisely. He listened and had good eye conduct.

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October 25, 2024

5.0

Dr. Subbu is a wonderful Dr. he really cares about his patiences.

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October 23, 2024

5.0

Dr Subbu works with you to talk through options. He is a great listener!

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October 15, 2024

5.0

He is a wonderful patient doctor.

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October 12, 2024

5.0

Dr. Subbu is professional, compassionate, and knowledgeable. He is very concerned about his patients and demonstrates this with his time, listening, and medical skills. Dr. Sabu took the time to ensure he understood my needs as a patient and person. Greatly appreciated!

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October 09, 2024

5.0

He listened to me and explained thing thoroughly.

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October 09, 2024

5.0

More concerned to the patiyent

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October 08, 2024

5.0

Good insightful review of labs and meds - providing advice how to adjust meds before next visit

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September 26, 2024

5.0

Good Patient / Doctor communication. Clear explanations.

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September 25, 2024

5.0

Listens well to everything that you are telling him as to what is going on with you. Answer all your questions and has great advice

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September 24, 2024

5.0

He really listens to you and explains everything to you if you have questions.

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September 24, 2024

5.0

He Takes the time to talk to me.

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September 20, 2024

5.0

Takes time to educate the patient and answer questions.

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September 18, 2024

5.0

He explained everything in detail and was very understanding

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September 13, 2024

5.0

Even with a future doctor in toe this provider has excellent handling skills, extremely rapid communication and attention skills, superior professionalism even with a tangled mess of medical records in a quantum state, and used the best source of information to help guide the diagnosis; the patient. I wish that wasnt as rare as it is in my experience with the medical field, but that means it is just that much more of an accomplishment. Occam's razor is getting a bit rusty in some of my other dealings. For a first visit this was excellent.

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Disclosures

Karthik Subbu, MD reported no external professional relationships for calendar year 2024.

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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