Very knowledgeable. Listens well and has always provided me with excellent care.

Hoping to find another doctor. He seems to be the only doctor that is accepting new patients. All the other doctors fill up pretty quick. So if you see one available, get them. This is by no means a bad review for the staff at Kaiser. The staff at Kaiser are awesome. The nurses, assistants, receptionists, kudos to all of you!!

Dr. Zallen was a great help on the phone.

Excellent primary care doctor.

Amazing Doctor. I had seen probably ten doctors by the time I had met Dr. Zallen. I had been having horrible stomach pains for months and was unable to get much of a diagnosis. I was just taking an over the counter medicine everyday and wasnt really healing. On my first visit with Dr. Zallen, he ordered tests that gave me complete peace of mind and had me on the road to recovery the next week. I have since felt better and returned to a normal life. I think very highly of Dr. Zallen, he is very knowledgeable and I am both grateful and impressed at what he did that others could not.

Ive been a patient of Dr. Zallens for a few years. Hes always been very approachable, direct, and knowledgeable. Im happy to have him as my primary care doc.

Ive been a patient of Dr. Zallens for several years now, and Ive found him to be knowledgeable, understanding, and helpful. Hes listened to me during my appointments, and is interested in helping address any issues or concerns I may have. Hes direct, and perhaps thats not what some patients want in a doctor. I, however, appreciate that hes going to presnet me with the facts, and advise me on how to proceed in an honest and helpful way. I also appreciate that hes willing (and in fact, often recommends) contacting him via email or phone before making an appointment when possible, as emails & phone calls dont incur any out of pocket expenses on my part.

Great service very knowledgeable and his staff as well

This doctor sucks, don’t go to him. Disrespectful and impersonal.

OK. Never really prepared for the visit but does an OK job.

Hes a dick