Marcus Allan Mercado
Marcus Allan Perreras Mercado

Marcus Allan Perreras Mercado NP-C


Nurse Practitioner
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4.3 / 5 (based on 855 Reviews) View 43 Comments
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Office Information

Hospital/Group Affiliation

PIH Health Physicians





  • Nurse Practitioner

Board Certifications

  • Family Nurse Practitioner

Patient Reviews

December 27, 2021
Marcus Mercado was very professional. The office staff were very helpful and it was a very, very relaxing and pleasant visit, during a time that was kind of stressful. Thank you.
December 27, 2021
Yes, I really liked it. The staff was very friendly. The doctor took his time in listening to me, and yes, I was very happy. Thank you.
December 27, 2021
December 18, 2021
Excellent staff and physician!
December 17, 2021
I asked him if he read my chart well, because I have cancer and a blood disease and I needed antibiotics for what I have and he gave me Tylenol and Allegra and I was very sick and I knew I was sick for my I know my body. I had it a week. So I called my own doctor because I was getting worse and she said people like me need antibiotics so I don't get pneumonia, but he wasn't hearing that. He had his own protocol. I guess what he had to say about me.So I was needless to say, I was a little unhappy when I left because I knew how sick I was. But, you know, it is what it is, but if I needed urgent care,yes, I would go back.
December 16, 2021
I think that the urgent care should have ultrasounds onsite. i wasn't able to get one and I desperately needed one. I also think female doctors should be assigned when there is a pelvic issue, as the male doctor didn't really seem to understand what was wrong with me.
December 16, 2021
The PIH Downey Urgent Care staff was very professional and the facility clean.
December 13, 2021
Having a choice of walk ins is great
December 11, 2021
I am very disappointed from my visit to urgent care yesterday. Marcus was not helpful and when I asked if he could explain things to me he replied with "well I already explained it to you". I was told I have dyspepsia or an ulcer but was only given medicine so I can eat so that I wouldn't get actual help on figuring out what's going on with my stomach and the horrible pain I've been in. I will not be going back to this office.
December 10, 2021
I'd like to speak about [name removed]. yes, it was a very important therapist he, he called me a lot of things you took time with me, and I really appreciate it. It out. I was very thorough and I would recommend him and if I did that would like to have a therapist to see thank you.
December 08, 2021
Urgent care is a good alternative when you can't get an appointment soon. It's always hard to get appointments with PIH for regular checkups.
November 30, 2021
(INAUDIBLE) Really good girl. He answered questions and concerns. (INAUDIBLE) seem like a really nice doctor and I just wish it was a little more time I could get information, a little bit more questions but I know (INAUDIBLE)
November 30, 2021
I saw Dr Mercado in Urgent Care Whittier. Staff was great, wait minimal and doctor was very good. Explained everything.
November 30, 2021
I feel the wait was really long this time at urgent care and if people are coughing or with a fever, if they come in with chills, they should be put inside a room in not in the waiting room. Thank you.
November 29, 2021
Provider was friendly, and timely but did not perform an assessment. And made a diagnosis without even touching me, or doing any sort of assessment to diagnose the issue before prescribing medication. And that did not give me any sort of comfort.
November 28, 2021
The staff was amazing and caring and sweet. Thank you so much. The best urgent care experience I've ever had.
November 28, 2021
The dr was very young but was very professional Thanks
November 27, 2021
Excellent customer service clean and professional
November 27, 2021
I was received quite quickly, the X-ray technician was not very kind or a fruit punch standing was going way too fast was pulling on my arm, didn't show any kind of empathy, the doctor or the provider actually gave me the wrong medicine. That did not match up with the other medicines that I took even though the nurse asked me specifically about my medications. So I bought a medication that I couldn't take then, I did not have pain medication all the way from Saturday to Monday and then I have to talk to my doctor. which, Teak, had a phone, a phone consultation that he was 15 minutes late too. So no, I would not recommend this office or the providers to my friend.
November 26, 2021
The provider and staff were very kind. All of my questions were answered so I felt heard and supported in my recovery.
November 25, 2021
Was seen quickly and the physician was helpful.
November 25, 2021
This UC site is awesome! Staff is professional and pleasant. If there is a wait it is very short - which is greatly appreciated when you don't feel well.
November 18, 2021
That for a gynecologist they are also women because as women we identify with more confidence.
November 15, 2021
I like the fact that it was quick an easy. The provider was quick when he told me what was wrong with my son. So I would definitely recommend it.
November 15, 2021
It was good but they need to understand people do understand medical issues especially a person in the medical field try not to talk down to them like they don't understand what's going on. People do you have education.
November 15, 2021
The Dr i was scheduled with did not listen to what I had to say. I need an antibiotic for a condition I have. I told him I took the wrong dosage prior. That's why I'm still sick. He said I have allergies. And, according to my PIH health online, it says I have a bacterial infection (Pharyngitis group A beta hemolytic streptococci) which is bacterial infection aka need antibiotics. Also, I don't believe he is a bad dr. I think because he had his papper on, PPE, he could not hear me well. He also, would stand awkwardly far away while I spoke. I'm in the medical field, I work on a Covid floor. I get it. But, don't be a stranger to your patients. Make us feel heard, and safe. Awful. So here I am, again, sick since October 7th. With the same symptoms. I'm Covid negative, which I already knew. Awful experience.
November 15, 2021
I was very pleased with the Dr. Marcus, he tell me and explain me everything very well thank you.
November 12, 2021
I was seen by this provider in urgent care because I was having an asthma exacerbation. I have had asthma all my life. I am 29 years old. I know exactly what exacerbation feels like. Upon walking in he did not bother to introduce himself and he wasn't looking at my chart in the computer in the room as other providers normally do. I told him my symptoms, what I was feeling and when he listened to my lungs, he said that they were clear. All my vital signs are normal. Although they usually are when I do have an asthma exacerbation. I'm not sure if the paper that he was wearing interfered with my with him listening to my lung. So you could clearly hear that I was wheezing and short of breath. He didn't really listen to what I was feeling. I kept telling him I was having trouble breathing
November 11, 2021
It was very satisfactory. Thank you.
November 08, 2021
The facility was clean and whole process was easy!
October 29, 2021
Marcus was extremely, he was just great. He was caring he was compassionate he listened to me, even though I probably annoyed him with all my questions. He did not seem annoyed at all. He took care of me. He was gentle with the injections with the procedure. He was totally confident and gave me a lot of hope that I was going to be okay with the procedure. And I really felt good when I left is off, you know, his care. So I'm just very thankful for him and he's doing a great job.
October 29, 2021
I was surprised at how quickly I was seen. Everyone was extremely professional.
October 29, 2021
Office ladies were super fun and accommodating. My nurse was also a great listener. It was a very frustrating day for me but these ladies helped me feel better.
October 28, 2021
Marc and the rest of the stuff were kind and empathetic. Great job PIH!
October 26, 2021
We went to Urgent Care for my.. problem. The staff was great and Marcus was wonderful. He came in sat down explained everything to us. Listened to our concerns and was very respectful, and extremely helpful. He's an asset to PIH and he is somebody we would... really appreciate having again, if the need be. Thank you.
October 23, 2021
Calm courteous and knowledgeable staff
October 22, 2021
I was seen at urgent care so no appointment was need so answer to question was n/a but selection was not available.
October 16, 2021
Is real professional in explaining my jury to me and I am going to go back tomorrow and for a follow up visit and things, things seem to be going real fine in my recovery, I got no no complaints at all, hopefully. Looking forward to seeing him. Thank you.
October 16, 2021
The nursing staff was exceptional.
October 16, 2021
Staff was friendly and attentive
October 13, 2021
Great experience, being urgent care I was expecting to be waiting a while, but check in was fast, I only waited maybe 3-5min before I was taken in. Everyone very friendly and professional, will definitely come to this location in any future urgencies.
October 09, 2021
I was confused. The doctor said he was going to provide a preventative antibiotic in case my mother had a UTI. I questioned this and I guess he changed his mind because there was no prescription. Turned out ok because after the urine sample, some hours later, she did not have a UTI.
October 04, 2021
Thank you for your help
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