Book an Appointment
Qualifications and Experience
“IF YOU ARE AN EXISTING PATIENT OF THIS PRACTICE PLEASE CONTACT THE OFFICE TO SCHEDULE ACCORDINGLY” Heidi Flagg is a friendly and experienced OB-GYN serving her patients in New York, NY. Dr. Flagg is certified by the American Board of Obstetrics and Gynecology. She is currently a member of the American College of Obstetrics and Gynecology, the American Medical Association, and the Kansas Medical Society. Dr. Flagg offers her patients a number of services, including annual physicals, pap smears, birth control, menopause consultations, genetic counseling, and post-partum visits. She welcomes patients to her practice who are experiencing acne, urinary tract infections, abdominal pain, STDs, and ovarian cysts. Dr. Flagg received her medical degree from the University of Kansas, and she completed her residency through the Women and Infant’s Hospital of Brown University. Dr. Flagg strives to continue her education through research, and her work has been published in medical journals, such as the IARS journal of Anesthesia and Analgesia.
Verified Patient Reviews
Bedside manner was very professional, warm, and put me at ease.
Dr. Flagg is very warm and professional, with an excellent bedside manner. She was efficient without feeling rushed.
Kind, caring, trustworthy
Dr. Flagg was great and really took the time to answer all of my questions. The visit was quick but thorough. I would definitely recommend her for your annual check up!
Everyone was so kind and attentive, overall a wonderful visit. Dr.Lese was my doctor, and I highly recommend her, she's very knowledgeable, comforting, caring, and thorough. Thanks again!
Quick, highly efficient
Warm, informative, and efficient
First visit with Dr. Flagg, and she was so great! No wait time, she put me at ease, very easy going.
Visit was great and very efficient! I arrived 15 minutes early and was seen immediately. I was done with my appointment 10 minutes after my scheduled time. Dr. Flagg was very personable and made me feel at ease. I will definitely return for future check-ups and any other concerns.
The best OBGYN I've ever met. The office is very organized, everyone friendly. I highly recommend this practice.
The search is over, finally a doctor and staff who care! Everyone is kind, accommodating, and timely whether I'm calling in for more info or when I'm in the office. I can't recommend Dr. Flagg and the office enough :).
Excellent facility. Support staff was courteous, pleasant and efficient. Dr. Flagg took the time to answer all my questions and made me feel like she was really listening. No wait time.
Dr Flagg was so nice and made me feel very comfortable. The office had a great flow. So happy I found this place.
The entire experience was absolutely great ! I loved that she explained everything to me.
Everyone was super friendly, professional and informative. Dr. Flagg was very nice and easy to talk to.
I was seeing another doctor at this practice, and began going to Dr. Flagg after she left. She is attentive, lets you ask questions, makes you feel comfortable and offers a lot of solutions without pressuring you to make decisions right away. I'm very glad to have found her.
Very pleasant office! Dr. Flagg was great and made me feel very comfortable.
I arrived about 15 minutes early for my appointment, had already done the "early check-in" option on the patient portal they emailed me to join, and still had to fill out more information on their IPad...I don't know if it's their software or the device itself that's wonky but it was really frustrating trying to fill out the forms on there. Between that and being sent to a second waiting area and then taken back to wait in the exam room, my wait time was probably around 45 minutes before seeing the actual doctor. I was going to have my exam while I was there but decided not to before I even entered the room. As I was being taken back, the patient before me had left her stuff in there and asked to go back in to get it. This made me uncomfortable thinking they must not be very sanitary if they didn't notice someone's items left behind while prepping the exam room...so I asked if I could at least have my birth control renewed while I was there and come back at a later time for my exam and the staff including the doctor seemed to have a huge problem with that. The doctor said she'd give me enough for 2 months since she hasn't examined me yet but then never sent in my script. I had to write a request to have my prescription and then she only wrote it for 1 month! Not a great first impression. Oh and when I went to check out and make my appointment for my exam, I was told to go back to the first desk I checked in at and the woman was very rude about having to make my appointment and said, "You're supposed to make your appointment at the appointment desk but I'll do it for you this time."
Dr. Flagg was great - very professional, friendly, and efficient. I was also very pleased that I barely had to wait at all before being called into the exam room. Seemed like a very well-run practice overall.
This was my first visit with Dr. Flagg and I am very pleased to have found her. She was very thorough and her office staff were great as well.
She's was very informative and willing to answer my questions. It was my first visit with her and I felt comfortable.
Friendly, professional, informative, easy to talk to, calming and relaxed. Definitely a doctor you stay with for the long-term.
Professional, friendly, helpful and exactly what I needed. Everyone at the practice seemed lovely.
Great doctor! Answered all of my questions and very thorough + extremely efficient (I was in an out). What more could you want.
Great front office staff. Dr Flagg was knowledgeable and had great bedside manner. Highly highly recommend this office.
Very very kind, gentle. Quick. Everything went very well. The office is clean, even the staircase is clean. Dr Flagg was amazing.
My appointment with Dr. Flagg was efficient and informative. I didn't have to wait more than 2 minutes for my appointment. She was willing to take the time to talk through certain points. She was helpful and didn't try and rush me through.
I felt welcome, understood, and taken care of.
I really liked dr Heidi - very professional, knowledgeable and nice lady! I would definitely recommend!
I very much enjoyed Dr. Flagg and the nurse I had. Even though the nurse assumed I was on Mirena and when I said no it's actually the skyla she shot back at me "they are the SAME thing" - but then why do they have different names and different doses of hormones... she acted like I was an idiot when in fact I am v well versed on the different types. Following my exam both the Dr and nurse sent me to have an ultrasound after my appointment instructing me to keep all my clothes on - meanwhile the technician demanded I undress.. I was a little confused as I had never had an ultrasound before. She seemed a little mean and snarky at first while just staring at me waiting to take my pants off - but I suppose it was just miscommunication. Other than this moment of uncomfort the appointment was a smooth and painless process
The front desk was rude and disorganized. When I arrived, the receptionist made a face when I mentioned I hadn't registered online. I had received emails about registering for an account but none of them indicated that it was mandatory for my visit. She gave me an iPad to sign into my online account and fill out the necessary forms. When I mentioned I had done all of this on ZocDoc, she mentioned they don't use that information. I had to go through another round of forms on a website that was clunky, hard to use, and exceedingly frustrating. When I asked the receptionist. I could tell she was also not clear on where the various forms lived. Two other women were going through a similar experience when I was there. All had signed up through ZocDoc, expecting a seamless transition. After that unpleasant onboarding experience, I waited for 15-20 minutes before getting brought to a room to change. I was there for another 20 minutes before the doctor showed up. The exam was about 10 minutes maximum and that doctor was efficient but not attentive. Yes, I got my exam but I was unimpressed by her bedside manner. I felt like a faceless patient amongst a list she had to get through daily. If my friends asked me for an OB-GYN recommendation, I would not recommend this office or this doctor. I came here, against the recommendation of my colleague (who had a similar experience), because it was convenient. I advise others to not make the same mistake I did.
Dr. Flagg was very informative and took the time to explain all of my options. I felt like I was in good hands.
Wonderful bedside manner. Very thorough and caring.
She was great and made me feel very comfortable. Could have spent a little more time with me but appreciated the speed too
The doctor did not provide any information on my condition, and was in a hurry to get me out the door. I left the office feeling terrified, confused, and unsure of next steps with respect to treatment. Would not recommend.
Dr. Flagg was sweet, approachable, efficient, and non threatening. I would recommend her very highly to anyone!
This was my first visit with Dr. Flagg, and I was really happy with it. She is knowledgeable, to-the-point and has a clear POV, but is also warm and friendly. As this is my first pregnancy, she offered both specific and holistic advice that was reassuring and gave me clear actions to take, which I really liked. So far so great!
No words for how much I love Dr. Flagg. She is honest, funny, and informative. I searched for 4 years for a gynecologist in NYC and am so happy that I finally found her.
She was very fast and efficient. Very nice too.
Very caring and thoughtful physician. Had a minor procedure and she was excellent.
Dr. Flagg was very thorough in examining my issue. She asked me a lot of questions, and was very personable, and I did not feel rushed while with her. The office is new and modern, and the staff coordinate well together. If Dr. Flagg is not available, it appears there are a number of other doctors in the same office who all work together. The only thing I would improve would be wait time before seeing doctor and between procedures and tests.
Appreciated how attentive she was-I was a new patient with her, not the practice-and felt like she took the time to get to know me during the appointment.
I loved my visit with Dr Flagg, which is something to be noted, as you don't normally LOVE your visits with your gyn haha. But even though this was my first time meeting her, I thought the doctor was so easy to talk to and spoke very frankly to me, like we were friends. She was very kind and took the extra step in making sure I was comfortable (including warming up the equipment before she used it!) The only issue was that I had already filled in all of my check in forms on ZocDoc, but the office had their own online check in forms that I was supposed to fill out online, and they did not "talk" to each other, so I ended up filling the forms out twice, which took 15 extra minutes. Their forms were also much more doctor-speak than the ZD forms which lead to some confusion.
Dr. Flagg was kind, professional, and exceptionally receptive to questions! My only suggestion to other patients would be to ensure that there is communication between the different professionals at the center and confirm that you have everything you need by the time you leave the office!
I am a new patient and found Dr. Flagg to be professional and knowledgeable. Her bedside manner is very warm and comforting. The office staff is extremely efficient.
Dr. Flagg was patient, thorough, composed, and addressed every question I asked with depth and professionalism. She made me feel comfortable, and I got the sense that she truly cared about my well-being. I highly recommend Dr. Flagg---she runs a wonderful practice.
Dr. Flagg is very sweet person. She made me so comfortable there. I am glad to had an appointment with her.
Heidi is very cool and makes you feel totally comfortable. Best experience I've had at a Drs office in a long time :)
Loved loved loved Dr. Flagg.
She is amazing!
Really considerate and caring doctor. Made me feel at ease and was so helpful and clear when discussing the issues I brought up.
I'm very happy to have found Dr. Flagg and plan to go to her for years to come!
The office was well staffed and friendly. Dr. Flagg was prompt, friendly and very helpful. The appointment was efficient, but I did not feel rushed and had time to ask all my questions. She made me feel comfortable, offered advice on future/optional treatments and was easy to talk to. I will definitely be coming back.
She was very friendly, comforting and smart. Everything you'd want in a gynecologist, especially having never been to one in the city before!
The office is very nice and super efficient. The nurse was extraordinary and Dr. Flagg was easy to talk to and quickly put me at ease. I will absolutely be returning
I had a wonderful experience with Dr. Flagg today. After attempting to visit another GYN recently, and having to leave because of an absurd wait time, I set my expectations low but was completely satisfied! I was welcomed very quickly and had my weight and BP taken within 5 minutes. I saw the Dr. within 15 minutes. Everyone with whom I interacted was warm and caring. Dr. Flagg explained everything she was doing and asked if I had questions. No complaints at all!
Informative, enthusiastic, caring. Really thorough and professional annual exam! Thank you Dr Flagg.
She is the absolute best.
Absolutely loved Dr. Flagg!!
I had such a great experience with this doctor. My old gynecologist had awful bed side manner and she made me anxious to see any gyno. But Dr. Flagg made me feel very comfortable. It felt like she genuinely cared about me and she took the time to answer all of my questions.
Dr. Flagg is warm and inviting, and makes you feel comfortable on your first visit. Efficient and respectful of your time, everything I needed was taken care of in one visit. Will definitely be using her in the future.
Having seen the same GYNO since I was 16, I was nervous to switch. Dr.Flagg made me comfortable and was overall really cool! The office staff is friendly, and the atmosphere is comfortable. I highly recommend her.
Dr. Flagg is a wonderful doctor. She listened to all of my concerns, has a great bedside manner, and thoroughly provided me with a series of solutions that fit my personality. I would recommend her to anyone and everyone!
She was very reassuring, knowledgable, kind, thorough, and an all around good doctor. I would absolutely recommend her!
Dr Flagg is fantastic, highly recommend her!
Excellent, thorough, down to earth, easy to talk to, comprehensive. will come back for sure.
Such a lovely office with lovely staff. Super approachable and answered all my questions with lots of detail and support. Loved that they played calming jazz music too!
Dr. Flagg was great--she answered all of my questions and made me feel totally at ease. Everyone at the office was very nice as well, it was a great, comfortable experience. Will be keeping Dr. Flagg as my main Obgyn!
Friendly, empathetic to my situation and extremely knowledgeable. I left feeling I knew all my options and next steps.
Dr Flagg seemed very smart, direct and approachable. She took the time to ask me questions and see me as a whole patient before the examination.
Really impressed with her expertise and thoroughness combined with a very kind manner, I would highly recommend.
Doctor has a great bed-side manner and is very through. Staff is great. Wait time was a bit long, but the staff keep apologizing and made you feel like you were a priority. Will definitely be back!
I had a really good experience at Dr. Flagg's office during my visit. Everyone in the office was kind and quick! I was in and out of there in less than an hour. It was my first visit with Dr. Flagg, and I found her to be warm, inviting and very helpful as far as answering all of my questions went. She's also really cool- if that matters.
I'm so happy to finally find a very good and very nice GYN
I felt comfortable with the staff and Dr. Flagg. Everyone was great and professional.
I have never been more comfortable with any doctor. Having your lady bits inspected is always a bit uncomfortable, but Dr. Flagg was seriously one of the nicest doctors I've ever seen. Answered all of my questions, was very honest with me, and made me feel like I could ask anything I needed to. Incredible experience overall.
My experience with Dr. Flagg was great. I didn't wait very long. The entire staff was very nice. The visit was short, to the point, and perfect. She was attentive to my needs and questions.
Dr. Flagg was the best doctor I've seen in a long time! She was very professional and informative and I appreciate her warm demeanor and caring attitude. She was quick and efficient without making me feel rushed. The entire staff is extremely kind, patient and helpful--a rare find these days! I highly recommend Dr. Heidi Flagg!
She was great!, Straight to the point and she put me at ease with dietary concerns, exercise requirements and whats to come! She's awesome!
First time at this location and everyone was very friendly! I was seen fairly quickly, and she was extremely thorough. Friendly staff, quickly seen, went over everything in details. What else could you ask for?
Dr. Flagg was very nice and spent quite a bit of time with me. She has a nice office and a calm and pleasant demeanor. She seems very knowledgeable and was very helpful.
Love it. Doctor Flagg is amazing, nice, and very professional. The office is great. They have all the equipment and whatever is needed in the same place. Highly recommend after my first visit.
I thought Dr. Flagg was great with my diagnosis. However my follow up appointment I was lucky to get her for 5 minutes where at best I had half of her attention. The office staff is very unorganized. They tried to say I owed for an office visit I already paid for. When I needed a prescription refilled I had to call the doctor on call since the staff never made a note saying I needed the prescription as soon as possible.
I have been searching high & low for a ob-gyn that would take the time to listen to me rather than dismiss my issues as just a "common irregularity". Dr. Flagg listened, was honest and got me in for tests ASAP which helped identify what the actual issue was. The office is great (fairly quick) and the staff are incredibly nice. Cannot say enough nice things about this office or Dr. Flagg.
My experience with Dr. Flagg was great! I definitely recommend her to everyone.
She was amazing. So nice and comfortable. I would recommend her to everyone.
I highly recommend this doctor. After visiting various gyn, Dr. Flagg has been by far the best. The office staff was fantastic, from the moment i stepped off the elevator to the MA who took my stats, to the doctor herself. They all worked nicely together to move the appointment along smoothly. As for the doctor herself, she was patient and attentive. She did was she could to make an awkward (always is and always will be) appointment a little less awkward. She called me back when she said she was with my Pap results, which was a pleasant surprise.
She was charismatic and professional. It may have been a busy day or the fact it took forever to verify my insurance, but she was right to the point, informative and quick. Felt comfortable and the staff was super friendly and positive energy. Dr. Flagg is a keeper as a Gyno, very cool person.
Amazing doctor and office! Professional, pleasant and caring.
I loved Dr. Flagg. I was nervous after reading reviews of the office staff online, but the person who helped me at the front desk was wonderful and kind. There was a ridiculously long wait, but I was prepared for that with a book. The only strange part was that there seemed to be a lack of communication in the office, because after finally being brought into a room another nurse came in and said they needed the room so I had to go back to waiting. In the end, Dr. Flagg was kind and efficient and helped me with all my questions.
Dr. Flagg was great- straight and to the point, but very kind and answered all of my questions clearly.
This was my first visit to Dr. Flagg. She spent a great deal of time with me, just getting to know me and my health history. I felt incredibly comfortable with her and would recommend her to anyone!
Visited Dr. Flagg for a well woman checkup--office was very efficient in getting me checked in and I was called almost immediately. Not much of a wait in the waiting room, either. Dr. Flagg was really nice, asked all the pertinent questions and did a painless but thorough exam. Definitely would recommend.
The office is quite busy and I felt a little rushed.
She is the best doctor! For anything gyno I highly recommend. You feel like you are in the hands of a true professional who treats you like a close friend.
She ia an amazing Doctor. I have been a patient since 1999. Dr. Flagg and everyone in the practice are wonderful.
Dr. Flagg and her staff are wonderful. I was seen right on time and Dr. Flagg was extremely kind, thorough and personable. I plan to continue to see her and I would absolutely recommend her to friends and family and plan to do so!
Very friendly and knowledgeable! Was able to make me feel much more comfortable and confident than previous doctors.
Professional, courteous, friendly, kind, comfortable. i will go back!
Very professional and kind. I'm so happy to have a gynecologist that I feel comfortable with!
Dr. Flagg was great! Knowledgeable, professional and prompt. Definitely one of the best doctors I've seen in NYC.
The visit was thorough- she asked lots of questions, and was not rushed at all. Dr. Flagg took her time in the room and was very accommodating and helpful.