Respiratory Virus and Vaccine Information

Reeti Greenwald, MD

4.9

1321 ratings Read Reviews

Northwestern Medicine Regional Medical Group

Primary Specialty

Sleep Medicine

Is your insurance accepted? Select plan

Schedule Appointment

Reasons to Schedule a Visit

This medical professional may be a good choice for you if you are looking for care for any of the following:

Circadian rhythm disorder
Cpap evaluation
Cpap related anxiety
Daytime sleepiness
Hynagogic hallucinations
Hypersomnia
Insomnia
Narcolepsy
Night terror

Nightmares
Parasomnia
Rem behavior disorder
Restless leg syndrome
Sleep apnea
Sleep paralysis
Sleepwalking
Snoring

View More reasons to Schedule a Visit

Education

Medical Education:: MD, Rosalind Franklin University of Medicine and Science Chicago Medical School - 2014
Internship:: NorthShore University Health System - 2015
Residency:: University of Chicago - 2018
Fellowships:: University of Chicago - 2019

University of Chicago - 2020

Board Certifications

American Board of Psychiatry and Neurology/Neurology - Neurology (Certified)
American Board of Psychiatry and Neurology/Sleep Medicine - Sleep Medicine (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medicine Regional Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Central DuPage 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.

Read Ratings FAQs

Overall Rating

4.9

4.9

1321 Ratings

Reviews from Patients

97 Reviews

Reviews from Patients

97 Reviews

February 22, 2026

5.0

Knowledgable of sleep disorders

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 21, 2026

5.0

Efficient, kind, timely.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 18, 2026

5.0

Her compassion and knowledge.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 12, 2026

5.0

Welcoming, informative, very accommodating.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 10, 2026

5.0

Dr. Greenwald was very positive and thorough with my diagnosis and made me feel good about moving forward.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 10, 2026

5.0

Doc was great! Took some time to explain my sleep study scores and what the data meant in a very simple, easy to digest manner

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 08, 2026

5.0

Dr. Greenwald was excellent. This was my first visit and she was patient, understanding, and explained everything in my report/test results very clearly.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 03, 2026

5.0

I usually hate going to any doctor. This one I could feel that she cares by the way she listened and talked with me.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 31, 2026

5.0

She knows her stuff. She listens. Very friendly.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 26, 2026

5.0

She was very direct and fully understood my questions. Very personable.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 25, 2026

5.0

Great doc

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 23, 2026

5.0

She was very professional and took the time to discuss and explain my options.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 19, 2026

5.0

Dr. Greenwald is not only a very knowledgeable but also is a very compassionate physician who always listens.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 18, 2026

5.0

Very helpful and responsive

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 13, 2026

5.0

She Kept on making sure I received the care I needed.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 08, 2026

5.0

Dr. Greenwald was awesome. I liked her eye contact and how she explained things in a non-judgmental and compassionate manner. She didn't rush the appointment, and she answered all my questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 07, 2026

5.0

Very approachable and friendly

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 07, 2026

5.0

Kind, didn't make us feel rushed

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 06, 2026

5.0

She was very nice and professional and answered all of my questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 21, 2025

5.0

Shes a great Dr with GREAT bedside manner

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 09, 2025

5.0

She seems very nice

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 05, 2025

5.0

Very thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 04, 2025

5.0

Very caring doctor. Great bedside manner. Good listener.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 26, 2025

5.0

Really nice and understanding.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 24, 2025

5.0

Very pleasant & experienced

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 22, 2025

5.0

Dr. Greenwald was fantastic. Explained results and discussed a treatment very easily.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 18, 2025

5.0

I like Dr Greenwald - very thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 05, 2025

5.0

Friendly, Knowledgeable, Good Listener, Good Communicator

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 04, 2025

5.0

She listens to you

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 03, 2025

5.0

Doctor's caring personality and willingness to listen to my thoughts.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 01, 2025

5.0

She seemed very knowledgeable.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 30, 2025

5.0

Dr. Greenwald was very good. Took the time to review my tests, went over options, and detailed next steps. I was impressed with her "bedside manner" as she was both knowledgeable and made me feel comfortable. I'm in good hands.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 29, 2025

5.0

Bedside manner and clinically sound.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 28, 2025

5.0

I felt heard by her and she gave practical advice and feedback. She is also kind. I appreciate that!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 22, 2025

5.0

The care and the staff is always great!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 21, 2025

5.0

She was exceptional by answering my questions and attention to me.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 18, 2025

5.0

She was caring, informed and made sure to ask for any questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 13, 2025

5.0

She's so kind and explains everything well and takes her time

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 09, 2025

5.0

Dr Greenwald is amazing . She is very good at diagnosing my sleep apnea.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 09, 2025

5.0

Very friendly and professional! She explained everything in detail and what are plan of attack is going to to be.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 09, 2025

5.0

She goes above and beyond to help and always explains why she recommends a routine or medication.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 30, 2025

5.0

First time meeting her . She was very ibm formative and helpful regarding my health

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 30, 2025

5.0

Doctor listened well and carefully explained her recommendations. She answered all of my questions. Left feeling confident with ne t steps.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 30, 2025

5.0

Dr. Greenwald is so kind and personable. She's very easy to talk to, includes me in my care plan, and I feel comfortable discussing any concerns with her. She's fantastic!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 24, 2025

5.0

They were very nice, luckily had a cancelation or I would've had to wait until January.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 24, 2025

5.0

Satisfied

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 24, 2025

5.0

Dr Greenwald took the time to explain my CPAP machine results and their meaning

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 22, 2025

5.0

She is very cordial and professional in explaining the trend of my sleep study patterns.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 18, 2025

5.0

Listens to you well. lets you know what she thinks as far as what your diagnosis is. comes up with solutions. Seems very knowledgeable so is someone I can trust.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 15, 2025

5.0

She spends as much time with me as necessary, knows what she is talking about, and I feel like she has my best interests in mind at all times.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 10, 2025

5.0

Prompt, personable and professional

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 09, 2025

5.0

Listens and provides solutions to issues.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 03, 2025

5.0

She listens and is receptive to feedback.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 03, 2025

5.0

She was very thorough explaining results and discussing options

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 29, 2025

5.0

Dr. Greenwald is friendly, knowledgeable, prompt and explains her recommendations. I feel secure with Dr. Greenwald on my Northwestern team.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 21, 2025

5.0

Pleasant. Explained rational for actions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 20, 2025

5.0

Very professional, explained results of CPAP use and answered any questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 20, 2025

4.0

Knowledgeable and nice

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 19, 2025

5.0

She was very nice and made me feel comfortable in our first meeting.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 19, 2025

5.0

Her bedside manner was great

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 13, 2025

5.0

Doctor Greenwald is great. She is very knowledgeable, caring, and takes the time to answer questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 08, 2025

5.0

Dr. Greenwald is friendly, knowledgable, and cares about resolving your sleep apnea.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 04, 2025

5.0

Professional y Friendly

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 30, 2025

5.0

She really wants to help me.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 30, 2025

5.0

Dr. Greenwald is an ace. She imparts her depth of knowledge with clarity, breeding confidence in me as a patient, and her kind, personable manner puts me at ease. I trust her, therefore she is easy to talk to.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 23, 2025

5.0

She's friendly, patient, and knows what she's doing

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 22, 2025

5.0

Kind and knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 22, 2025

5.0

Met for the first time today. Friendly, efficient, and helped me with ally questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 17, 2025

5.0

Dr. Greenwald is a very professional, knowledgeable, and a fantastic Dr. Dr. Greenwald explains everything thoroughly, goes over my test results with me, and gives me time to ask about my concerns. Dr. Greenwald gave me solutions to the concerns that I had. She is very upbeat and pleasant.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 16, 2025

5.0

Great doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 16, 2025

5.0

She was very knowledgeable and extremely friendly. Made me feel comfortable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 15, 2025

5.0

Very knowledgeable and explained the issue so I could understand it.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 15, 2025

5.0

I think anybody I know would be happy to be her patient

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 09, 2025

5.0

Dr Greenwald very thorough and took time to answer all my questions

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 08, 2025

5.0

Kind, knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 30, 2025

5.0

Was a pleasant person to work with.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 26, 2025

4.0

Once again, it's hard to form an opinion. My appointment lasted 15 minutes. The doctor was very pleasant very informative.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 26, 2025

5.0

Dr. Greenwald is a fantastic doctor. You can tell that she truly cares for her patients.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 25, 2025

5.0

Competent and caring

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 19, 2025

5.0

Just saw her for the first time. Very patient, kind and understanding. Had read my file and knew my situation. Looking forward to continuing with her.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 19, 2025

5.0

Professional, personable and relatable.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 19, 2025

5.0

Very attentive. Very informative. Followed up quickly.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 10, 2025

5.0

She took time to clarify and answer my questions about my health care.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 04, 2025

5.0

An excellent physician!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 02, 2025

5.0

Listens, explains and kind

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 29, 2025

5.0

Dr. Greenwald is awesome. She listens; she asks questions; and her focus is on diagnosing and then (hopefully) solving_or at least figuring out how to effectively manage_the problem.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 29, 2025

5.0

She's lovely. Easy to speak with, and sensible.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 27, 2025

5.0

So knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 27, 2025

5.0

Dr. Greenwald is the best! She is very personable and listens - I feel like we're just having a conversation while also getting solid medical advice.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 22, 2025

5.0

She is very kind and helpful. Explained everything thoroughly.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 16, 2025

5.0

Polite, professional and thorough.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 15, 2025

5.0

They cared about my personal information

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 13, 2025

5.0

Took extra time and care to listen to my concerns regarding my sleeping issues.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 10, 2025

5.0

Listens. Courteous. Knowledgeable.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 08, 2025

5.0

Understanding doctor. Very knowledgeable.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 07, 2025

5.0

The Doctor seems very nice and helpful. We were not able to really work together but she pointed me in the right direction.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 02, 2025

5.0

Very personable, gave good explanations and reviewed all options

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

Disclosures

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.

View More Disclosures