Call us on 020 3488 3307 or email us at

Your private GP Service in the City of London


At Medical Prime we are an independent private GP service that provides quality care in a comfortable and discreet environment. We are passionate about achieving excellence in everything we do and promoting your wellbeing.

We believe in a holistic approach and in working with you when managing your health related needs, concerns or queries.


We offer services on a wide range of health matters for people of all ages who live, work in or visit London. We have a fast and easy  24-hour online system, where you can book same day appointments.

Our standard appointments are 20 minutes to give you time to fully discuss your issues. There is also a choice of some evening and Saturday appointments.

Feedback from our patients

This is a very experienced , highly knowledgeable , motivated and very empathic general practitioner who is truly focused on  resolving her patients' problems and getting 'results'!  I certainly noted that she is very knowledgeable. I very much appreciated that ! She is definitely 'my kind of doctor' and exactly what I would expect from a true 'professional'.

3 May 2018

An absolutely unparraleled and patient centric experience. 
Having had some health issues for a while and having seen several private and NHS practitioners where a holistic approach was never considered, Dr. Theodora has taken the time to firstly understand me and my lifestyle, then she has thoroughly gone through my entire medical history, comparing my results over the years, questioned my symptoms in detail, recommended some more tests which she then interpreted and explained to me patiently, to then formulate a detailed treatment plan with all the possible treatment options, giving me the choice to opt for the one that I thought it was most suitable for me and that I would feel comfortable with - considering that some of the medicines could have some unpleasant side effects. As a result, I would wholeheartedly recommend Dr. Teodora to anyone who is looking for a truly 5 star service or who has not yet found the right treatment approach to their health issues.

5 June 2018

I had an appointment with Dr Kalentzi to discuss the symptoms I was having following the menapause. She was very thorough in investigating my overall health and symptoms, and very patient answering all my questions. I asked to have some blood tests to check various levels of hormones, iron, B12 and thyroid, Dr K helped group the blood tests together to make it the most cost effective. I received the results two days later and they confirmed the low levels of progesterone and oestrogen that Dr K suspected and I have started the HRT she prescribed. I also had a smear test and it was great to have it all sorted in one appointment. I would highly recommend Dr Kalentzi and won't hesitate to see her again.

17 May 2018

From the first visit, I have felt that Dr Theodora Kalentzi is both a top professional and a very considered and friendly person. She carefully listened to my medical history, asked questions and managed to address my major concerns within two appointments. After a full examination, Dr Kalentzi clearly explained the blood test results and she took in consideration my overall medical history as well as any potential genetic predispositions I may have. I really appreciate such holistic approach and I have even discovered that my Healthy Heart Age is five years younger than my actual age! 

I am very happy to recommend Dr Kalentzi to anyone who is looking for a good GP and a high quality service in the City of London.

16 May 2018

Came away fully informed about HRT and what is right for me. I have been frustrated with seeing doctors through the health system and the various opinions and advice. Prime Medical gave me as much time as I needed to question and fully understand HRT. I saw Dr Theodora Kalentzi and she listened, questioned and was very open about the different treatments, pros and cons for HRT treatment. I feel confident in the approach that I have chosen based on what I have learnt and look forward to my follow up visit and progress in a few months.

30 May 2018

I been to see Dr.Kalenzi , the only things I can say it that she is very profesional , she explain to me everything I ask for and guide me very well , I understand everything that se told me taking in consideration that I'm not English she been patient with me.She understand right the way what I need. Thank you Dr Kalenzi.

30 May 2018

Dr Theodora Kalentzi is so lovely and empathetic and put me at ease immediately. She is fantastically knowledgeable and talked through all the options with me. She is willing to discuss and prescribe all the latest innovations and discuss all the pros and cons. I cannot recommend her highly enough and I feel so grateful to have found her. 

14 June 2018

Call us on 020 3488 3307 or email us at