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    Neff J Michael MD

    5.0 (1 review)

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    8 years ago

    Dr Neff is an amazing doctor. The staff is very friendly and he is extremely knowledgeable. I would highly recommend him!!!

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    People searched for Internal Medicine 491 times last month within 15 miles of this business.

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    Mackrizz Luis A

    Mackrizz Luis A

    1.8(5 reviews)
    2.1 mi

    Going on 3 months-Mackrizz/office still hasn't filled my prescriptions correctly. Multiple…read morecalls...for three medications I've been on for several years. Mackrizz/office somehow left 2/3 medications off my prescription order. For the third medication, he ordered two of the same medication...at the WRONG dosage. This was AFTER my third call to his office to have Rx corrected. I just called a 4th time...this time I was noticeably short of breath because his office has still NOT filled my beta blocker Rx. I also learned that according to a specialist I saw, Mackrizz orders unnecessary tests. Tests insurance won't pay for...yet that I must pay out of pocket. It feels like either incompetence or egregious malfeasance. Doctors who "test everything" then bill insurance increase their profits while making insurance unaffordable. My wife, a CRNP, even re-coded inaccurately coded testing so insurance will pay. She gave Mackrizz's office the corrections. They still dropped the ball. I suppose if I had zero inside baseball, I'd just write a review about how he was nice. Nice is great and all. But.... I also feel he misdiagnosed me with asthma and ordered asthma medication I didn't need that insurance didn't cover (Brio-$90). He had this Fisher Price looking device that he (surprise) charged extra to test with. Another $100. I saw a pulmonologist daily for 2 months in an ICU. A year later, I followed up with a second pulmonologist. Respiratory specialists don't diagnose me with asthma after EXTENSIVE testing--yet a Doctor of Osteopathy diagnoses asthma? I understand the numbers were lower from one test to the next. I feel it wasn't about the "respiratory test" but about profitable testing. Furthermore, Mackrizz diagnosed me with hypertension. Same deal-- a specialist I saw many many times--a cardiologist--doesn't diagnose me with HT--yet Mackrizz diagnoses me with HT? My experience with Mackrizz is that he ordered unnecessary tests, that while profitable for him, cost unnecessary out of pocket expenses that don't solve problems I don't even have! He knew there would be charges his office would bill insurance for that insurance wouldn't cover. As soon as you walk in his office, signs preemptively & boldly state this. Clearly, it occurs with enough regularity to create signage. He was nice though. And charming. And seemed thorough. When I complained about the two-hour wait and how I was barked at by a member of his staff for complaining about a two-hour wait he seemed empathetic. But I'm stuck with--maybe $1000 of out of pocket expenses, two incorrect diagnoses, and can't get my prescriptions filled after a visit and multiple phone calls?

    My review is based solely on their receptionist's lack of medical professionalism. You should…read morereally pull patients aside to discuss anything related to medical diagnosis and/or billing. This woman at the window is LOUD and rude. I've never in my 3 years of visiting this office have experienced such behavior. Because of this, I'm seriously considering finding another doctor. Love Dr. Mackrizz and how thorough he is, but he needs to be just as thorough when it comes to hiring his staff. Insane how she could careless about the patient's right to privacy. Insane.

    Roberto F. Diaz, MD and Associates

    Roberto F. Diaz, MD and Associates

    5.0(1 review)
    0.0 mi

    My wife and I have seen Dr. Diaz for few years already. We just visited in his new location at Bay…read moreArea and we are glad that he is available every day of the week. We trust Dr. Diaz and we like to consult with him before we get any procedure done by other doctors.

    From the owner: Roberto Diaz, MD, is an internal medicine specialist and founder of Roberto F. Diaz, M.D. &…read moreAssociates, located in Corpus Christi, Texas. At his practice, Dr. Diaz provides safe and compassionate medical care to all his patients to ensure they are comfortable and receive the best care available.  In 1990, Dr. Diaz graduated summa cum laude at the Higher University of San Andrés in La Paz, Bolivia. He trained in internal medicine at the University of Illinois Chicago in Illinois. After practicing for 10 years, Dr. Diaz decided to open up his own practice in Texas.  At Roberto F. Diaz, M.D. & Associates, Dr. Diaz offers a wide selection of primary care services. He also performs safe, cosmetic procedures to improve a person's appearance and enhance their self-esteem. From Botox®, Juvéderm®, and body contouring to obstructive sleep apnea (OSA) treatment and chronic disease management, Dr. Diaz and his team can help you look and feel your best. Dr. Diaz respects the patient's opinions, suggestions, and listens carefully to their complaints. He believes in a holistic approach to medical issues with an emphasis on prevention and early detection of medical conditions. He is dedicated to treating his patients with the most advanced technology available. Dr. Diaz has invested in innovative devices, such as i-Lipo™, which can reduce unwanted pockets of fat without surgery or incisions. Dr...

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    Roberto F. Diaz, MD and Associates
    Roberto F. Diaz, MD and Associates
    Roberto F. Diaz, MD and Associates

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    South Texas Medical Associates - This is the lobby and that window is  where you check in.

    South Texas Medical Associates

    3.0(4 reviews)
    3.6 mi

    I first met Dr. Oloyo when, at the recommendation of another physician, I took my mother to see…read morehim. I was impressed with how thorough and patient he was with her, so I made an appointment with him and have been his patient ever since. If you see Dr. Oloyo, you will receive top-notch, comprehensive care. He is patient, kind, thorough and tremendously knowledgeable. He makes it a point of asking detailed questions and of LISTENING to what you tell him. He has the ability to manage multiple and complex problems that a patient may have, and he demonstrates genuine care and concern I encourage you to go to South Texas Medical Associates. You will not be disappointed.

    My wife went to Dr Oloyo for weight loss/nausea and a cough and got the worst care I've ever…read morewitnessed. He also put his dirty hands...didn't wash between patients, used dirty stethoscope....all over her face for no reason. He also looked on the front of her stomach for her nephrostomy tube hole-a dr that doesn't know this is on the back should not be in business! She had to spell out then write down how to even spell Nephrostomy to the nurse. We waited two hours to be seen and he didn't listen to her at all, kept cutting her off. He only cares about money. Glad she is reporting him for negligence. His er and primary care clinic need to be investigated. I think he is committing fraud. I also think this is a great place to go if you want the FLU OR CORONA VIRUS SOON SINCE HE DOESN'T WEAR GLOVES OR WASH HANDS BETWEEN PATIENTS!

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    Family Practice Associates of Corpus Christi

    Family Practice Associates of Corpus Christi

    4.8(8 reviews)
    5.0 mi

    My experience with Family Practice Associates of Corpus Christi has been pleasant and satisfactory…read more I went under Dr. Bruce Mertz after my lifelong family doctor down the street (Schulze Sr.) finally retired and I have the former office to thank for the good referral. Dr. Mertz sets his patients at ease. He doesn't beat around the bush, answers all our questions with a thorough explanation, offers prevention advice, and has a very proficient practice. The paperwork that is shared with the patient is modern and easy to follow. The admin help visibly work off the options of the health insurance I am using. The low waiting times with the waiting room and exam room have been impressive versus what I read of elsewhere. The overall operation is set up to run efficiently, which is too rare in the healthcare industry. The waiting area is large, clean and well-kept. I would recommend this practice to family and friends.

    Professional, timely, efficient and courteous are just a few words to describe my experience with…read moreFamily Practice Associates of Corpus Christi. I was waiting hours and hours in the waiting room of my previous family practitioner and it was becoming a burden. He was a wonderful physician but the wait time was just too much. Luckily I found Family Practice Associates of Corpus Christi and was accepted as a new patient. That was about six months ago. Both my wife and I switched to Dr. Mertz. Dr. Mertz is fantastic. He doesn't beat around the bush, answers all our questions with a thorough explanation, and has a very proficient practice. Both my wife and I have seen Dr. Mertz several times since becoming his patients and every time we only spent five to ten minutes in the waiting room and only a couple minutes in the exam room before Dr. Mertz came in. I only wish I had found Dr. Mertz when I retired to Corpus Christi in 2005. My life would have been much better from a medical standpoint. I'd be remiss if I didn't mention his staff and the waiting area. His staff is wonderful in every regard. And the waiting area is large and clean. If you're considering Family Practice Associates of Corpus Christi, don't hesitate to give them a call. And by all means as to be assigned to Dr. Mertz.

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    Family Practice Associates of Corpus Christi
    Family Practice Associates of Corpus Christi

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    Neff J Michael MD - internalmed - Updated May 2026

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