GP practice in Nassau
Primary care for adults, children and adolescents.
Specialist in General Medicine Additional qualification in Emergency Medicine
As a GP practice specialising in general medicine, we can help with almost all health concerns and coordinate with specialists and hospitals when necessary.
The GP practice is your first point of contact for health questions. Continuous care helps us keep track of your medical history over the years.
Many illnesses can be detected early. We will discuss which examinations are appropriate for you.
We care for the whole family, including its youngest members.
We carry out important examinations directly at the practice.
We issue medical certificates within the range actually offered by the practice.
Some services are not covered by statutory health insurance. We will explain the service and its cost in advance. Fees are charged under the German Medical Fee Schedule (GOÄ).
Which services are covered by your health insurer depends on your insurance and the reason for treatment. Please ask us if you are unsure.
Paid private service for self-pay patients
Are you living abroad and finding it hard to fully understand medical reports, test results or a doctor's recommendations because of a language barrier? This service is for German-speaking or English-speaking people living abroad.
We will agree on the scope and costs together in advance.
Enquire by emailEmail is not end-to-end encrypted and is sent at your own risk.
Please do not send any medical reports by email yet. We will agree in advance how documents are to be provided.
Telephone from abroad: +49 2604 1577
Specialist in General Medicine, additional qualification in Emergency Medicine
Stefan Konstantinov is a Specialist in General Medicine with an additional qualification in Emergency Medicine. After studying medicine in Gießen, he now draws on many years of medical experience to provide personal and comprehensive care for his patients.
Individual advice, careful diagnostics and continuous care for adults, children and adolescents are central to his work. As a GP, he always considers the person as a whole.
There is a direct route for the most common requests. Appointments are available by prior arrangement only.
Call us during consultation hours or send us an email. We will find a suitable appointment together.
02604 1577Request an appointment by emailEmail is not end-to-end encrypted and is sent at your own risk.
You can request repeat prescriptions for regular medication from us by email.
Request a prescriptionEmail is not end-to-end encrypted and is sent at your own risk.
If you need a referral to a specialist, please send us a short email.
Request a referralEmail is not end-to-end encrypted and is sent at your own risk.
Email is not end-to-end encrypted and is sent at your own risk.
You can read about patients' experiences of the practice in the reviews on our Google Business Profile.
5 out of 5 stars
Deutsch“Dr Konstantinov is very professional.
He has helped me very often and shown that his medical knowledge is very extensive. The whole team is very helpful, kind and competent. Thank you for everything.”
5 out of 5 stars
“As a long-standing patient, I am still very satisfied with the whole practice.
The staff are very kind and attentive.
The doctor takes plenty of time for treatment and explains anything you have not understood.
I feel very well looked after there in every respect.”
5 out of 5 stars
“Our whole family has been seeing Dr Konstantinov for six years now, and we are still absolutely delighted. The reception staff always give you an exceptionally friendly welcome, and the whole atmosphere in the practice is warm and welcoming.
Dr Konstantinov takes plenty of time on every visit and is always ready to listen to all of us. […] A huge thank you to the entire wonderful team for their excellent support over the past few years!”
5 out of 5 stars
“Mr Konstantinov is an excellent doctor. He has time for his patients and his diagnoses are always accurate. The practice is very well organised and there are virtually no waiting times. All the staff are always incredibly kind.”
5 out of 5 stars
“I felt very well looked after here. Mr Konstantinov takes every concern very seriously. I do not mean only physical symptoms, but also matters relating to mental health. The medical assistants are also always very friendly, even when the practice is very busy. Thank you. You are a great practice team!”
Selected reviews from the practice's Google Business Profile, translated from German and partly shortened, as of 16 October 2026. Dates are approximate, calculated from the details shown on Google. All reviews can be found on Google.
By appointment only.
Please arrange your visit by telephone in advance. This allows us to set aside enough time for you.
Call 02604 1577
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Regular consultation hours. The practice may be closed on public holidays, during periods of annual closure or at short notice. Outside consultation hours, you can contact the out-of-hours medical service on 116117.
Email is not end-to-end encrypted and is sent at your own risk.
Pontchateau-Platz 1
56377 Nassau
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The practice is in the town centre at Pontchateau-Platz, close to the market square.
Public parking is available at Pontchateau-Platz and the market square. Please observe the local signs.
Oranien-Apotheke, Pontchateau-Platz 1, and Apotheke am Rathaus, Amtsstraße 5.
Nassau (Lahn) railway station on the Lahntalbahn line. Nassau (Lahn), Amtsstraße bus stop.
If the practice is closed or life and health are at risk, these numbers provide help around the clock.
For urgent symptoms outside consultation hours when treatment cannot wait until the next working day, but there is no danger to life. No area code is needed and the call is free of charge.
Call 116117For life-threatening illnesses or injuries, call the ambulance service immediately.
Call 112