I've been a patient of this office for 3 years and I've lived in the community for 5 years all I have to say is that Dr Kosh's accounting department is absolutely not professional at all and they lack customer service I have never been treated like this before no respect no explanations at all, they have been billing me to an address in Rancho Cordoba that I haven't lived in over 6 years way before I became a patient of Dr Kosh's office I don't know how or who gave them this address I certainly did not so I was taken off their patient list when I asked why they said because my account was in collections for an amount that I don't even owe them their office staff is not even in the same office they refereed me to an office in the south area the head accountant there just said you're no longer our patient find a new doctor...... no other explanation.this lady name is Crystal she sucks at her job........ please get rid of her or find a new accountant she does not even get back to you if you have questions.... i do not recomend this office due to the lack of interest they have in you as a person they're after your wallet and insurance card read more