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Qualifications and Experience
Awards and Publications
NEW PATIENT OFFICE POLICY: New patients should arrive 15 minutes before appointment time and submit insurance information prior to the visit. We require that you provide us with at least 24 hours of advance notice if rescheduling or cancelling an appointment. It is our office policy to charge $25 for missed appointments or for appointments cancelled without 24 hours notice. If your insurance requires a referral, please obtain one prior to your visit. We are not responsible for obtaining your referral. ------------------ Dr. Khanh Thieu received his medical degree from Harvard Medical School. He trained in dermatology at Columbia University, where he also served as chief resident. Dr. Thieu is a native of the Philadelphia area and attended the University of Pennsylvania for college, where he graduated summa cum laude with dual bachelor degrees in economics and engineering. Dr. Thieu has graduated from Ivy League institutions at each level of his education. He is happy to be back in the Philadelphia suburbs to serve the community where he grew up. Dr. Thieu is board-certified in both dermatology and dermatopathology. His practice includes medical, surgical, and cosmetic dermatology and encompasses adult and pediatric patients. Dr. Thieu has presented at national dermatological conferences and has many publications in peer-reviewed dermatology and scientific journals. His most recent research has focused on the genetics of melanomas and squamous cell cancers, for which he received a research grant from the American Medical Association. Dr. Thieu's cosmetic expertise includes laser treatments, Botox, dermal fillers, body contouring, and cosmetic removal of moles and skin growths.
Verified Patient Reviews
Very professional pleasant experience.
Very good experience!
Very professional & effective!
Dr. K. Thieu is an extremely dedicated dermatologist whose professional expertise is outstanding. He is efficient, considerate and skilled. I would highly recommend Dr. Thieu.
I waited less than 30 minutes in the lobby which had plenty of space and reading material. The office staff were pleasant and courteous. Dr. Thieu was thorough in his assessment. Overall he is a knowledge physician who genuinely cares about the wellbeing of his patients.
Overall it was good...I felt confident about his treatment plan. I even made an appointment for my son as well. The wait was way too long but hopefully that doesn’t become a trend.
The doctor moves VERY quickly, he is in and out of the room very quickly and on to the next patient but in that short time he addresses all of your issues
Dr. Thieu is one of the best Doctors I've ever been to. He address all of your problems and concerns. He doesn't rush you through the appointment. He listens and is very caring. I would highly recommend him.
Quick, thorough, and knowledgeable!
Dr.Thieu was very efficient! My wait wasn't long at all. The staff were also very polite. I would definitely recommend!
Dr. Thieu was very apologetic about the wait, but I realized that is was towards the end of the day and that backups are inevitable. He acted as if he has seen my skin condition before and diagnosis was quick. The remainder of the time was spent discussing the best plan of action and getting a sample of a mole for testing. He listened when I told him of past attempts to address the problem, things that I thought might have exasperated the issues and how prescription attempts at resolution were no more effective than OTC. He didn't leave me feeling that things would not get better although he did let me know that all we could do was treat, not cure. I don't know if things will get better yet, but I do know that this doc will be there and that we will take this problem on as a team.
my skin is still good after a year of accuatane. he did a very good job on consulting & clearing up my acne. highly recommend this doctor & his office.
He is a really kind and proficient doctor. Great bedside manner. I had to wait a while to see him but when it was my turn, he spent a good amount of time with me and didn’t rush. Would recommend him but suggest getting the first appointment in the morning.
Dr. Thieu was excellent, as usual.
Wonderful Doctor, very friendly and knowledgeable.
He was very knowledgeable and spoke plainly so that my daughter (patient) understood what was explained to us. We go back next month for follow up and to see if prescriptions worked.
He's a very good doctor. And highly recommend them . They answered all my questions.
Very professional, very factual and Dr. Thieu made me feel comfortable with his diagnosis and recommended treatment. I would recommend his services to anyone.
Dr. Khanh has a very good bedside manner and seems to be a good Dr (I had a very simple procedure). I would go back to him.
Had to pick between two Dermatologist and I'm so glad I chose the right one. Aside from his excellent profile & achievements, he was very professional and polite. Excellent staff, too. Highly recommended!
Excellent bed-side manor and knowledge. Very friendly
Professional environment. Polite Technician. Very nice doctor. Appointment was quick and doctor was ready to answer all my question. He also explained my every concern
Very Good Doctor...Highly recommended.
All of the employees seemed very professional and courteous. The doctor's office was very clean and modern.
Dr. Khanh is very patient and thorough. He is very comfortable to work with.
Office is very clean Dr.Khanh was very professional and nice to talk with.
Great service, friendly, knowledgable, and realistic!
Dr. Khanh Thieu was very professional, caring, and polite.
Very good doctor. Attentive, friendly, knowledgeable
Dr. Thieu was very professional and helpful. He answered all the questions that I had during the appointment and was able to remove a skin tag without any pain or discomfort. I was able to book an appointment for the same week, and my wait time in the office was short. It had been multiple years since my last dermatology appointment, but I would certainly recommend Dr. Thieu if you're looking in the King of Prussia area!
I was seen almost immediately. I went in for an issue, and the doctor was able to do a biopsy right away. I'm so thankful I didn't have to make another appointment to come back. Great experience.
I feel like Dr Khanh took the necessary time to listen to me, ask appropriate questions, and we were on the same page for treatment. His office was nice and well kept. I was slightly disappointed with the wait time. I arrived 15 minutes early and checked in immediately upon entering. I wasnt seen by the Dr until at least 45 minutes after my appointment time.
Had a great experience with Dr. Thieu. Professional and he took the time to hear me. Explained very well. The Office is clean and modern. Was seen on time but was not rushed in my appointment. Booked a follow up routine appointment - easy to book on-line and all was professional.
He was very professional and did he best to help me with my problem.
He's great. He was also kind. His office staff and med assistance were also wonderful.
Amazing staff and doctor!!
Fast, polite and professional
The wait time is hardly ever too long, and if it happens to go longer than 30 minutes than something very wrong happened that day. Very polite and kind. Highly recommend.
I am still not sure, what to think about this visit. During the examination he kept asking the same questions over and over again. I also had to ask to obtain information about the diagnose and the cause. He seemed to be unfocused or distracted..
I was highly impressed.
Dr. Thieu was great. I came in with a few different concerns and he was happy to address them all. He made me feel comfortable and answered my questions in a friendly manner. I would highly recommend Dr. Thieu to anyone looking for a new dermatologist!
The visit was very pleasant. Dr Thieu was very friendly and knowledgeable. I really liked the way he explained things to me. Highly recommended.
Dr. Thieu was phenomenal!
I ended up getting a laser procedure done for scars on my face and have been happy with the whole process so far. It's too early to see improvements so far, but I'm going to be coming back for a second treatment in 1 month.
He and his team are really professional. Dr. Khanh is able to explain the treatment procedure clearly to patients.
I thought the doctor was really good and found the staff helpful. My only negative experience was the wait time for my 10 minute appointment. In total I was at his office for 1 hour and 15 minutes which I found beyond absurd.
The staff and Dr Khanh Thie were very helpful and polite. I was seen right at my apt time with no waiting.Prfessional and welcoming environment and great care.
Friendly, thorough and patient
Very professional and knowledgeable. And most importantly, he was efficient! Thank you.
Dr. Thieu was fantastic. Saw me quickly, was thorough and thoughtful. Overall I thought this was an excellent visit and he is a great doctor.
Excellent. Doc was great ! I understand the waiting time especially at a late afternoon appointment. It was no big deal. I'll come back to this practice in a heartbeat ! Good luck and best wishes.
He seemed very knowledgeable and is super friendly. I did not like having to wait over an hour though to see him. If my second appointment has the same wait time, then I'll probably find a new dermatologist.
As someone who had the same wart for 3 years and had several doctors visit, I can tell you that he knows what he's doing. Not only is he professional, he actually explains his procedures and plans to you like you have a functioning brain, which was really beneficial. I am currently wart free, but if I ever need anything I'll be back!
Very personable and focused on my issue. No long wait unlike another Dermo in CC at the Curtis Center. He targeted the issue and provided a plan. I recommend thus far.
He made me feel very comfortable. I was scared to death. Would of went alot sooner if I'd of known it would have been so easy. Thanks Doc.
The extra 20 minute drive outside the city was well worth the visit with Dr. Thieu. He was kind, patient and addressed each concern with thoughtful feedback.
This doctor was very knowledgeable and took care of the growth on my face. There was no pain. His office was clean and very welcoming.
The visit was great. The doctor addressed all my concerns. The whole team was wonderful.
I have been to several dermatologists over the last seven years in an attempt to solve my hair loss problem which occurs in cycles. Dr. Thieu is the first one who suggested a biopsy of my scalp. He took a proactive approach and this gave me confidence in his ability to help me address the problem effectively.
My husband, who is a facial surgeon, referred me to this practice. I had a great experience and already have recommended to my friends to switch to this practice. Dr. Thieu took the time to listen to my concerns instead of rushing me out the door like other derm practices. You actually see the doctor and not a PA or NP-which is usually the case at most other larger practices. Dr. Thieu's credentials are superb- probably the best I have seen in Main Line or anywhere else but he is very approachable and sincere. I will be bringing my children here from now on. I will also be recommending to my husband to send his patients here after my positive experience.
I would like to say one thing, you will be very happy with Dr. Khana Thieu
The appointment was for my 89 year old Mom. Dr. Thieu was very kind and addressed her concerns and fears. We felt he took care of her problem appropriately. Loretta C.
Courteous office staff. Very short wait time. Doctor was informative, answered my questions and agreed on treatment plan.
Dr. Thieu was very informative, patient and reassuring. He assisted in reducing the inflammation of an abscess under my right arm which was fairly painful but had I not went when I did, he said it would've probably been worse. Luckily, I am feeling much better due to the cortison injection and have Dr. Thieu to thank for that.
It was my first time visiting Dr. Thieu's office, after reading those reviews on ZocDoc I decided to drive an hour to his office and it's definitely worth the drive!!! He was super nice, professional and explained everything clearly. He even gave me a prescription for my acne and it was FREE!! Wait time was <10 min, filling your information on ZocDoc beforehand will save you some time. If you are around the area, stop looking around and go to Dr. Thieu's office if you need to see a Dermatologist.
Continued to treat the same wart, never fully removing it, but always charging full price every visit.
Very nice office with professional staff. The Dr. was very thorough and polite.
Dr. Thieu and his staff were very professional and polite. He explained everything he was doing and answered all my dumb, questions. :-) Great office layout ,too.
Very convenient and easy to get an appointment. This is my second visit, and I have had outstanding service from doctor and staff on both times. I will definitely come back in the future.
Lovely practice. Great experience. I left feeling like I had a plan of action and resources. Professional, practical, and caring.
Great young doctor. Seems bright, nice guy and good, friendly staff.
The way you want a visit to be. Professional, on time, not rushed.
I have been to Dr Thieu's office 3 times so far and I had very pleasant experience. Doctor is very knowledgable and attentive. All the staff is very nice and polite. I never waited longer that 15 minutes. The office is very clean and nicely decorated.
The doctor is very knowledgable. He helped to resolve my skin issue and gave very valuable and working advice. I will definitely will be back if I need dermatologist.
I felt that Dr. Thieu was very professional. He took time to really listen to my concerns and addressed all of them. Definitely will use this office again and would highly recommend to others.
Outstanding on all counts - no corners cut. One of the most comprehensive and sensitive examinations I have ever had, inclusive of one minor procedure!
Dr. Thieu was very complete in the examination - did not rush. Very professional and explained every thing he saw. He gave me options on treatment and answered all by questions in a manner that was clear an concise. the support staff reflected the same care and professionalism of Dr. Thieu.
I took my daughter to see the dr thieu for the usual teenage case of acne. It was not that bad but my daughter wanted to get a professional opinion before the her school winter dance. The waiting room was busy and I was pleasantly surprised that the doctor spent a lot of time to go through a complete skin care routine for her. He was very patient and the visit was not rushed at all. Kudos to him for taking time with evrey visit even if it's just routine teenage acne.
He was very professional and knowledgeable. Felt comfortable during the entire visit! The office is very nice too.
Doc was great. Took time to listen to my concerns, and he was also sensitive to my financial situation. I will definitely be back as a patient.
Very professional and very knowledgable. I will definitely recommend him to all my friends and family
The dr. was so helpful and gave me enough time. I felt comfortable explaining my issues. I highly recommend him.
It was a very good first visit. I love the office, the receptionist, the assistants. What I wished would have happened is, I could have gotten my perscription sooner. Saw the doctor at 9:00AM, went to the pharmacy at 1:00PM and there was no scrip in the pharmacy's system. I called office and the girl told me my scrip was "pending" and she would send. Just called at 4:00PM and pharmacy again did not have scrip for me. I just called the office again, and now she says she is going to send it over right away. That has never happened with a doctor's office before. I am a little concerned about this.
Dr. Thieu saw my 13 yr.old son for rashes under his arms. The Dr. did not rush our visit & he was Happy, Friendly and polite. He answered all of our questions too. Do not hesitate to use his services.
Staff and doctor were nice and welcoming. Dr. Thieu answered my questions and took time to explain everything. I love the modern-looking office!
I think the Dr and his nurse were great. Awesome personalities and very sweet.
Great bedside manner. Listened to my concerns.
Very pleased with the doctor and his staff.
They were so unprepared about zoc docs efficiency that I was impressed on how smooth they accepted it shockingly easy. Very nice and proper characters the office had.
Very skilled and knowledgable.
Dr. Thieu was great. Warm and welcoming and I felt at ease for my first skin screening.
very professional. very informative and caring. will go back again
Very thorough examination and took the time to answer all my questions.
I found Dr. Thieu to be very kind and concerned about not causing me pain. He worked carefully and quickly. I would definitely see him again if the need arises and recommend him to others without hesitation.
Dr. Khanh was great - however, I was about 5-10 minutes late for my appointment and had to wait another 30-40 minutes before he came to see me.This was very inconvenient considering I had left work during my lunch break to come see him and wasted almost 40 minutes just waiting! Dr. Khanh himself was great, very friendly and the medication he prescribed for my eczema was very effective!
First visit to the Dr. He was very professional and patient. Was not rushed at all. Will be back!
Very professional and good bedside manner!
Very knowledgeable/experienced, professional, to the point, and helpful!
He answered all of my questions thoroughly and was very nice.
This was the second time I had seen Dr. Thieu and I continue to be impressed. His bedside manner is great, he is to-the-point and gets business done, but is still warm and compassionate. He is well educated, knowledgeable, and (maybe even more importantly) has a steady hand.
He's patient! I would see him again and would recommend him!
Efficient visit, 10min wait, looking forward to go again (when needed).
It was an excellent experience.
Dr. Thieu was extremely professional and thorough during my visit. There is a history of skin cancer in my family and he took extra time when doing my annual skin exam. I highly recommend him as a dermatologist!
Khanh is friendly and has a great beside manner. He's knowledgable, and great at explaining issues clearly. Highly recommended.
He's very detailed and patient. He explains everything in layman terms. He's not in a rush and actually cares about your overall health. Great doctor, great experience! Thanks.
He was a very good listener and quickly identified the issue, prescribed the medication, and seamlessly setup a follow-up. I appreciated the same day appointment and had a very good overall experience. Highly recommended!