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ENT Consultation
151 N. Michigan Avenue, Ste 913, Chicago, IL, 60601
7456 S. State Road, Suite 303, Bedford Park, IL, 60638
4646 N Marine Drive, Chicago, IL, 60640

Qualifications and Experience

Education

Hospital Affiliations

Languages Spoken

Board Certifications

Professional Memberships

In-Network Insurances

Specialties

Professional Statement

Dr. McMahan completed his undergraduate studies at the University of South Carolina majoring in biology with a minor in marine biology. Dr. McMahan received his M.D. degree from the Medical University of South Carolina. Following medical school, he continued his training at Northwestern University in Chicago where he completed a surgical internship and a residency in Otolaryngology–Head &Neck Surgery. He then completed a fellowship in Head and Neck Oncology sub-specializing in sinus cancer. Dr. McMahan is a board-certified Otolaryngologist and Fellow of the American College of Surgeons who has practiced medicine for more than 20 years. Since 1992, Dr. McMahan has been in private practice at Northwestern Nasal + Sinus specializing in nasal, sinus, allergy, sleep and snoring conditions. He has an in-house CT scanner and a specialty allergy lab. He is one of a few DAN (Divers Alert Network) physicians in Chicago and sees numerous scuba divers with ear and sinus problems. Dr. McMahan is an Assistant Clinical Professor in the Department of Otolaryngology–Head and Neck Surgery at Northwestern University Medical School. He has served as a Course Director of Advanced Landmark Based Sinonasal Surgery, and on the faculty of international symposiums on sinus surgery and allergies. Since 1997, Dr. McMahan has served on the Board of Directors of the American In-Vitro Allergy and Immunology Society. He is married to Lynn McMahan who has special interests in eco-green development and has been invaluable as a resource for counseling patients how to improve their environment at home and work. *NOTICE DOCTOR DOES NOT SEE PATIENTS FOR EAR ISSUES*

Zocdoc Awards

Verified Patient Reviews

(Verified Patient)

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Great variety of ENT experts to put you in contact with.

(Verified Patient)

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Excellent. Took time to explain symptoms and options for cure.

(Verified Patient)

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very thorough and it is without a doubt following the conservative approach instead of surgical procedures first and seeing that wasn't the fix. makes sure you really understand the problem and involves you in the decision very practical and caring man

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I like him a lot, but he is eccentric, seems to forget previous conversations, can sometimes bark information at his patients, is very casual in his style; all that said and done, I think he is a serious doctor and thoughtful in his approach.

(Verified Patient)

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Dr McMahan is one of the best doctors I've ever visited. He took time to diagnose the problem and he suggested a plan to investigate many pissible comlications with corresponding ways to treat them.

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He is no Dr Clemmis. Why did he have to retire! He was engaging and funny and NEVER hurt! Dr McMahan hurt my ears when cleaning them to the point that I flinched and said OW. I miss Dr Clemmis and he could never be replaced! He was THE best. I was very lucky to have been able to go to him for as long as I did.

(Verified Patient)

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Had a great visit with Dr. McMahan. Excellent bedside manner. We agreed on a treatment plan for my issue quickly, but I'm sure he's seen it all!

(Verified Patient)

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His approach is very aggressive and unsure if I needed half the meds / tests he prescribed.

(Verified Patient)

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Dr. McMahan is highly knowledgeable, personable and very good at getting to the root of my problem. Highly recommend!

(Verified Patient)

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The doctor was very thorough and informative. He took his time with me and just didn't rush me out the door with a prescription.

(Verified Patient)

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Dr. McMahan described what he thought was going on with the healing with my broken nose. But, then he suggested a more thorough x-ray to determine how the nose was healing, whether there were further problems with a deviated septum, or whether there could be any infection. After I had the x-ray Dr. McMahan called me back into his office to tell me the results: my nasal area had an infection, Dr. McMahan didn't know whether I suddenly developed allergies, but we discussed certain things I could eliminate in my home, doing my laundry, even eliminating certain scents, and telling me how to better deal with the possibility of my having allergies now. He advised that he would be prescribing some medications to eliminate the infection, then said he would like to see me in several weeks. Unfortunately, I am going out of town so cannot return until a month from now. Dr. McMahan also prescribed some blood tests to determine whether or not I had allergies. All of these remedies seemed to be very good ideas, and definitely a plan to go forward. Very satisfied with my visit today. Sharon D. Very happy w

(Verified Patient)

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I have been with Dr. John McMahan for many years. He is an exceptional doctor and always very sensitive to needs of his patients. Highly recommended.

(Verified Patient)

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Felt I was well cared for, there were good explanations about everything, and the entire staff was helpful and personabl. Nice visit.

(Verified Patient)

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Practical professional and thorough

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The doctor was great. He was able to get to the root of my problem and provided me treatment options. However, I am not too fond of the billing policy. The office should have a flexible plan for patients so they can cover services. Not sure if I can continue to come back.

(Verified Patient)

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Dr. McMahan is the best! He has taken great care of me and has allowed me to schedule my post op appointments for 6:45 am before he normally sees patients.

(Verified Patient)

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I appreciated the time he gave me as well as a good explanation of my condition. Then he put a plan together and I will see him again in a couple weeks. I liked his interview style and the attitude of everyone working there. I left with a full confidence thatbhe knows his medicine and cares for his patients and with that I know I will get better

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I showed up and they were running well over an hour behind. When I asked the girl how long it would be she became very rude and told me three people were in front of me. I said I wish someone could have called me and said they were running behind and her response was you should've called us we don't have to call you and she continued to be rude and unfriendly.

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If it wouldn't be for Dr McMahan who is a fantastic doctor I would most likely find a new practice after today's visit. My appointment was set for 10 am and I wasn't seen until after 11:00. For someone who was post-surgery and made it on time i believe I should be treated with priority so I could go home and continue to recover and instead I had to wait over an hour to be seen. The staff should make an effort to call and advise the doctor was running late so I could wait comfortable at home instead of wait over an hour on the office.

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Very kind. Felt like he really cared about me and it wasn't just a transaction.

(Verified Patient)

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I scheduled an appt. I arrived in time. Checked in and waited 20 minutes. I asked about the delay and was told 5 more minutes. Another 20 minutes went by and I asked again. The dr became available as I asked again. 40 minutes late is unacceptable. When I shared my disappointment, he simply said he waited a lot longer for HIS Dr. My nose wasn't bleeding that day so he said there was nothing he could do. I took half a day off work, paid for parking, paid a copay,and was kept waiting unapologetically. And my chronic nose bleed is still here. Bleeding started again the next day. Will absolutely never return. Incredibly frustrated with this whole experience.

(Verified Patient)

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He is the best ! He knows what he he doing and get to the root of the problem . I feel His approach is to treat the problem instead of suffering and going to tons of doctors .He works with insurance companies to get you the best meds . I have gone to him for years and he is "The Doc that gets it ! The office staff is one the best in the city . ;;)

(Verified Patient)

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Very pleasant!!!

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He's great. Would go to him again.

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He was a nice enough guy, but I think he was treating 2 other rooms with patients the same time I was getting an ear procedure done.. which didn't make me feel very welcomed or cared for.

(Verified Patient)

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While there was a delay in my being seen, Dr McMahan apologized, explaining that the woman being seen before me had multiple complicated medical problems, and took far longer than expected. It was OK, because Dr. McMahan is worth waiting for.

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The doctor was okay, but he seemed somewhat careless and uninterested. His office also misrepresented the insurance providers that it accepts, and even confirmed to me the wrong information. When I discovered this issue after the appointment and called the office to get to the bottom of the matter, the staff were entirely unhelpful or could not be reached. They repeatedly failed to honor their promise to call back once the proper person to handle the matter was in the office. Overall, terrible service. Save yourself the trouble and just go somewhere else.

(Verified Patient)

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So far so good! The doctor was very informative and knowledgeable and he made me feel like we were getting closer to figuring out a solution. He took a CT scan, blood, and a visual exam when most doctors I've been to will only get through a visual exam on the first visit. Highly recommend.

(Verified Patient)

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Very thorough. Even though all was fine, Dr. McMahon sat me down and we talked about general ENT health and steps I could take to prevent future problems. Many doctors seem too busy these days to explain things. Highly recommend!

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He's crazy. The visit was like nothing I've ever experienced. The guy is nuts! Had to convince him to let me get an allergy test done, and then he made me list out what I wanted to be tested for even though I just wanted a generic test done! I sat there googling what things I thought I may or may not be allergic to in order to develop the list. Weeks later and I still haven't heard back! DO NOT GO TO HIM!

(Verified Patient)

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Well organized, efficient. Doctor solved long time problem on first visit.

(Verified Patient)

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Excellent visit. Discouraged walking in and hopeful walking out.

(Verified Patient)

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Even though the wait time was long, Dr. McMahan had a great bedside manner and took the time to discuss everything in detail. He treated me like a friend not just another patient. The staff was friendly and kind as well. I enjoyed my visit.

(Verified Patient)

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Dr Mcmahan is a genius and his staff are extremely competent and pleasant

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Good doctor, efficient. However, very long wait

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Absolutely the best and most thorough visit. Dr McMahan takes time with the patient and explains everything completely.

(Verified Patient)

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Got right in and right out!

(Verified Patient)

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v good

(Verified Patient)

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Terrific. Professional and to the point always appreciated!!

(Verified Patient)

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He is very good!!! Very knowledgeable

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