Unless you like waiting between 45 minutes to 1.5 hours waiting for your appointment, find someone else. On one visit an hour past my appointment had gone by and no doctor. I stepped out in the hall and saw her in her office on her talking to her kids who were in the office while she was playing on her cell. On another appointment, a lady had already been there an hour past her appointment time when I arrived. We watched a lady bring a coffee to the doctor, and then she didn't leave for 30 minutes! She was back there taking to the doctor while we waited in the lobby. This was the last straw for me. I'd been seeing Dr. Posadas for three years, but you don't disrespect your patients time like that. read more

Because of her neglect, her promises on treatments which never happened even though I have insurance, I ended up with a thyroid storm hospitalized in agony for a week, suffering for 3 weeks before my husband carried me into emergency. I have left her care and found an endocrinologist who cares about his patients. Not one that causes harm and near death. Her disrespect for patients is appalling I guess she missed the class in bedside manner. And also the class on how to present ones self as a Doctor of Medicine I WAS LUCKY TO GET AWAY WITH MY LIFE. read more

Dr. Posadas is the best endocrinologist I've found in Tucson (I've been to three endocrinologists and had my thyroid overseen by three other GPs). Dr. Posadas accounts for both the lab results and your clinical symptoms, which is refreshing. Some doctors will disregard how you feel as long as you are within range, which is not effective for all patients. Dr. Posadas accounts for how you feel and also your lab results. She's not condescending (all providers should be like this but unfortunately that hasn't been my experience). She's patient and always open to explaining things. She also is supportive of patients who want to keep searching for answers as opposed to saying "you have x disease and are sick and always will be." If you want to keep looking, she will help you and work with other doctors. Also, I'm chronically ill and on a lot of medicines. Unlike many doctors, Dr. Posadas was sympathetic, understanding, and not judgemental. I felt like I could trust her. Everything I saw in other reviews about wait times is true. However, good doctors are rare and when I find one, I'm willing to wait to see them if I have to. I've had other doctors who were on time and then didn't help me. No sense in having great timing just to tell me I'm on my own with my symptoms and to fend for myself. If you have simple thyroid problems that can be treated by any doctor maybe waiting isn't for you, but if you are a complex case and need someone with deep expertise, it's worth seeing if Dr. Posadas can help. read more

Maris' staff scheduled appointment. Called early that morning and canceled due to emergency. Fine, rescheduled fo 2/8/18, 11:15. I showed up ten minutes early. First appointment with her but was told no paperwork needed prior to appointment. Great. So 11:15 comes & goes. 11:30 comes and goes. 11:45 comes & goes. Meanwhile lunch gets delivered from various locations & drinks from somewhere else. 12:00 comes & goes. At 12:10 I ask if this delay is normal. Response: this is more than usual. There are STILL THREE PEOPLE AHEAD OF ME AND I AM 55 minutes past my appointment‼‼‼ No breakfast & it is now lunch time. I told receptionist I was leaving and would NOT be back (OBVIOUSLY‼). Dr. has a sign posted that said if you're a new patient and do not show up, there's a $60 charge. I'm going to send the doctor a bill for $60 because she was a no-show for my appointment‼ If you want to waste your time with a doctor that doesn't mind being rude by failing to keep her appointments, then by all means try to get into see her. But if you don't like a rude doctor, check the Yellow Pages or on YELP for other endocrinologists that might give an ounce of care to their patients or want to be a new patient. I'll come back and post if the doctor fails to pay the $60 bill for being a no-show‼‼‼ read more

I adore this woman! She is always prompt in getting back to me with test results and I can always get her to call me back if I have a question. It is hard to find endocrinologists in town and she is one of the best. I would see her even if she didn't take my insurance. read more

read all of the above here goes I am now in a donut hole because posada did not explain how much a insulin cost to the patient gets free samples and give them out for shure she kept me on this drug it costs over 2000 bucks to the insurance company my part 45 bucks(now I have to 5000 bucks back to insurance) posadas got to be making more on higher priced medicine while your waiting ask a lot of questions it will be to your benefit I feel rip off I changed doctors hour and a half are even worse read more

Very nice lady who knows her stuff, but every time I have an appointment there, I end up waiting for an hour. Today my wait was an hour and a half. I'll be finding a new doctor read more

One day I went in when they open, she shows up an hour and a half late, then takes 5 minutes per patient to catch up. The average wait time is well over an hour, if you beat that you have a good day there. It is a party atmosphere with children on phones yelling and overall loudness. My first trip to see her she was in a black leather mini skirt, very unprofessional but I try to be easy to get along with. Her staff is no better, making excuses for failing to get back to you to get you meds and getting mad if you say anything about it. One day they give me injectable pens and I get home no needles, so you have to drive all the way back, it is always like this with them.3 weeks ago I had an appointment and they cancelled it last minute due to her having an emergency, and yesterday again claiming she is ill, then today I get a letter it says we would be better off if I find a new doctor. Very rude letter that made no sense at all. Glad to be gone. read more