Dr. Guillermo Marrero, MD

Internist

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1000 Executive Dr., Suite 1, Oviedo, FL, 32765

Qualifications and Experience

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Professional Statement

Dr. Guillermo Marrero graduated with a Medical Degree from American University of the Caribbean and completed his Residency in Internal Medicine at Memorial University Rhode Island. As the world of medicine grows more complicated, an Internal medicine doctor becomes even more important. Dr. Guillermo Marrero is a primary care internal medicine doctor in the Oviedo area who practices Preventative Health Care, and diagnosing and treatment of medical conditions.

Zocdoc Awards

Verified Patient Reviews

(Verified Patient)

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Great Doctor! I highly recommend him. My mom is paying self pay because she wouldn't trust anybody else.

(Verified Patient)

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Mi primera visita fue excelente, me senti muy bien en todo momento y el Dr Guillermo Marrero me parecio muy professional.

(Verified Patient)

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Dr. Marrero is THE best!!! And so is his staff and nurses.

(Verified Patient)

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As always, Doctor Guillermo Marrero listened to my health concerns and he didn't mind for bringing up more concerns than the ones mentioned at the time of appointment. He gave pertinent advises, took time to explain the treatments and offered several options. He seemed genuine concerned about my well being. I highly recommend him for his expertise and customer oriented skills.

(Verified Patient)

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Excellent doctor and very professional.

(Verified Patient)

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Excelente doctor, muy dedicado al paciente y con un personal de oficina excelente muy amable y atentos ...

(Verified Patient)

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Dr.Marrero has been my Dr for over 12 years. He has taken great care of me and I highly recommend him!

(Verified Patient)

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very attentive

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Really great Doc ! Listens and provided useful information and right to the point. Doesn't try to over complicate things and just gets you feeling better.

(Verified Patient)

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His office is very presentable. His staff is courteous. If Spanish is your 1st language this office is highly recommended because the staff is bi-lingual. Dr. Marrero is a great listener and therefore, had great recommendations. He ordered what was needed to rule out my symptoms & concerns.

(Verified Patient)

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Great Office and Nursing Staff and a professional Doctor!

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A very professional and pleasant staff complimented by a beautiful and clean office, but most importantly Dr. Marrero is excellent! He is friendly, knowledgeable, and takes his time with you.

(Verified Patient)

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Good overall service

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The Dr is great but one of the front desk people (younger with dark hair)was extremely rude put a damper on the whole visit.

(Verified Patient)

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Awesome very grateful!

(Verified Patient)

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I have been with Dr. Marrero for 15 years. He is exceptional in all aspect of care.

(Verified Patient)

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I have been a patient of Dr Marrero for about 2 years. He is very caring, and professional. I would definitely recommend him to anyone looking for a good Dr.

(Verified Patient)

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Great!!! Dr. Marrero explained everything in detail and suggested alternative treatments for my husband. Highly recommend it to anyone that wants to have a Dr. that really cares about your health and will make sure to explore all alternatives!

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Availity insurance eligibility check was not good. They made me wait and call the insurance company back and forth because billing department had billed for an incorrect billing code for my previous visit and had declined my office visit.

(Verified Patient)

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Always a pleasure to see Dr. Marrero and his staff. He's easy to talk with and very knowledgable about issues I might have.

(Verified Patient)

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Very pleasant

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Great Doctor. Staff needs to improve their English skills to communicate with patients. It will make the visit more pleasant having such of nice physician.

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Great doctor! I highly recommend Dr. Marrero.

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Love the way he listens!

(Verified Patient)

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The best!!

(Verified Patient)

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Very knoledge and helpful Friendly doc and staff Love it

(Verified Patient)

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Excellent doctor very good professional and one of the best

(Verified Patient)

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It was a really nice experience, his staff was very friendly and helpful and I was seen at my appointment time (no waiting).

(Verified Patient)

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Well done!

(Verified Patient)

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Had to come back next day for paperwork.

(Verified Patient)

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Dr. Marrero always takes time to listen, is very caring and proactive in helping his patients, and I am able to schedule appointments quickly and easily.

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The Doctor was very nice, he was patient and answer all the questions. I wish he did more direct recommendations instead of always saying to do whatever I think is best about my treatment. One of the nurses was somewhat rude and seem very rushed, I express my concern about the changes in my blood pressure and she gave me a piece of paper and told me to take my BPs every day, record them and bring them to the next visit..did she assume I can take BPs? What if I didn't know how to?. Also I was not told that I was suppose to be fasting for my lab tests. Later, when I called to ask if it was ok if I was not fasting, a nurse told me, that everyone knows that labs are always fasting, and if the doctor doesnt say anything I suppose to know that I have to fast before labs... she said the Doctor would only clarify when it is ok to eat. I felt very silly, I have had done many lab test in the past that did not require fasting.

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Dr. Marrero is an excellent physician. He is is caring and understanding and will take as much time as needed with each patient.

(Verified Patient)

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Muy satisfecha con todo, el DR se toma su tiempo para escucharlo a uno y encontrarle solución a sus inquierudes.

(Verified Patient)

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La atención espectacular, el DR super bien, te dedica todo el tiempo necesario a escucharte y a solucionar tus dudas.

(Verified Patient)

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Good.

(Verified Patient)

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He is an excelent Doctor. I recomend him 100%

(Verified Patient)

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The Doctor was very nice as was his staff but had to wait an hour.

(Verified Patient)

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El Dr. Marrero fue muy amable y respetuoso, su personal todas fueron muy buenas y amables. No espere nada a que me llamaran. Hablan ambos idiomas español e inglés. Lo que no me gusto es que no dejan entrar a tu acompañante con uno para nada.

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the staff is hit or miss. First time I went everyone was nice. Second time no one greeted me the girl that was nice before purposely ignored me. The tech taking my stats was horribly rude with the worst attitude. I brought to her attention her issues and she said she doesn't let things bother her. Her rudeness to me and my Pointing it out "got to her." This female was Hispanic young and just disgusting. I never want to be in her nasty presence again she was a joke to deal with. No one was friendly just the rudest staff ever. The doctor is terrible. I can't get into the things she did but she is incompetent and awful. Many of my relatives are doctors and I know a good doctor. This doctor was just awful and kept trying to send me to a specialist for stupid reasons. She finally did testing on me and found something. My relatives were surprised at the way she prescribed meds and how incompetent it was for the days and the dosage. She had a bad attitude and I will never return to this awful place. Only good thing is the short wait time.

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