I use Into-Sana in Odessa (
www.into-sana.com). Thus far in two years they have sown on the end of my right thumb, drained fluid from my elbow twice (both due to using Ukrainian sub-contractors

) and deal with all our family emergencies.
Many of the doctors and nurses speak English (not all) but you cannot even get through the front doors without having to put on blue plastic bags over your shoes. They are equiped with top of the range equipment for everything from nuerological, traumatological, gastroenterological, dermatological, cardiological, surgical etc etc etc.
Anechka and I pay a yearly subscription of $500 family (covers all immediate family) or for a single person $250. Everything is free apart from prescriptions from the Apteka. Appointments are generally on time, top surgeons on call 24/7, ambulances look like ambulances not a white bus or transit van (

) and the cleanliness would put a British hospital to shame.
You can also pay as you go for treatment without problem and they are not extortionate by any means. Several of my Moldovan workforce have been for stitches, X-Rays etc etc and I have paid the costs which have been minimal. They will transfer you anywhere around Ukraine (or to another medical body to take you out of Ukraine). At present all their hospitals are based in Odessa Oblast but they have plans to expand outside.
If you do not attend the hospital more than 4 times in a year, your annual subscription the following year is discounted 50%.
Can't fault them.

On a technical note, Ukraine and the UK have a receprical agreement that all emergencies are treated free for citizens in the respective countries. (ie I have a heart attack in Ukraine and Ukraine treat me for free until I am not critial - the same applies to a Ukrainian in the UK, the same agreement is in place with many countries so maybe worth checking if you are (at the very least) covered by this reciprical agreement in case of emergency with your respective Consol).