Department Gastroenterology, Hepatology & Nutrition
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English, Spanish
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Diagnostic Endoscopy
  • Egd
  • Gastrointestinal Endoscopy
  • Polypectomy
  • Variceal Band Ligation
View all 5 Treatment & Services +

Specialty in Diseases & Conditions

  • Autoimmune Chronic Hepatitis
  • Bile Duct Cancer
  • Cirrhosis
  • Esophageal Varices
  • Fatty Liver Disease
  • Hemochromatosis
  • Hepatitis B
  • Hepatitis C
  • Liver Cancer
  • Liver Disease
  • Primary Sclerosing Cholangitis
View all 11 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Mayo Clinic
GIH Neoplasia
Rochester, MN USA

Fellowship - Mayo Clinic
Transplant Hepatology (Internal Medicine)
Rochester, MN USA

Fellowship - University of Puerto Rico Affiliated Hospitals
San Juan, Puerto Rico

Graduate School - University of Puerto Rico

Residency - University of Puerto Rico Affiliated Hospitals
Internal Medicine
San Juan, Puerto Rico

Medical Education - University of Puerto Rico School of Medicine
San Juan,

Undergraduate - University of Massachusetts
Amherst, MA USA


  • Internal Medicine - Gastroenterology
  • Internal Medicine - Transplant Hepatology

Specialty Interests

Liver cancer, cirrhosis of the liver, liver transplantation, viral hepatitis

Research & Publications

Research & Publications

See publications for Carlos Romero-Marrero, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 12/7/2019, Dr. Romero-Marrero has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

165 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.8 out of 5
Explains 4.8
Listens 4.3
Courtesy, Respect & Concern 4.8
Patient Rating of Doctor 4.9

26 Patient Comments

Reviewed on Sep 24, 2020

top notch doctor.

Reviewed on Sep 22, 2020

For me Dr. Romero is one of the best doctors that I meet , his very Knowledgeable and respectable person it is to bad that he is leaving. i'm very glad that he took me as a patient for the time that he was here .

Reviewed on Sep 2, 2020

If I could give Dr. Romero a higher rating I would. His care and concern are the main reason I have come back so far from my illness.

Reviewed on Sep 2, 2020

I have recommended the Clinic to my family and friends already and DR. Romerro in particular.

Reviewed on Jul 13, 2020

Dr. Romero did an outstanding job. out of the 4 to 5 colonoscopies I have had ,it was the best one. I had no after side effects of bloating or bleeding after the procedure. thank you very much Dr. romero.

Reviewed on Jul 2, 2020

I understand that Dr Romero is a busy man but I find it very difficult to get an appointment but I will not stop seeing him. I think he's a very good doctor. I trust him. He answers my messages almost immediately....which is good...relieves my stress. In messaging ...he is A+.

Reviewed on Jun 25, 2020

I have never had a bad experience at The CLEAVELAND CLINIC. The staff and Doctors are exemplary.

Reviewed on Jun 25, 2020

I'm Always impressed with how comfortable My Doctor And All the Staff is!!

Reviewed on Jun 24, 2020

Our experience was outstanding The doctor explained everything in detail ans in our situation made us feel very comfortable and well informed by the time we left

Reviewed on Jun 22, 2020

my Dr was fantastic, he was verry attentive, verry informative. I felt comfort knowing he was genuine.

Reviewed on Jun 19, 2020

Dr Romero has been outstanding to work with. He is very willing to discuss matters in detail . And he is very responsive when I reach out with problems or concerns.

Reviewed on Jun 17, 2020

love Dr. Romero

Reviewed on May 28, 2020

this was my first online appointment experience. I thought it went well. my Dr. was well skilled at interviewing me and getting the information he need and I understood everything that he said and our plan from this point forward.

Reviewed on May 19, 2020

My appointment was over the phone not video. The doctor was aware of the issue for the consultation.

Reviewed on May 19, 2020

Dr. Show concern about my condition and laid a treatment plan for me.

Reviewed on Apr 13, 2020

Dr. Romero is a fantastic doctor!

Reviewed on Mar 19, 2020

l was seeing Dr. C. Romero Marrero about my liver tumor and after looking at the CD I had brought he called Dr. Aucejo who came in 5 minutes. They discussed the situation and came to the conclusion surgery was possible. Great news to me and done so quickly. Great experience for me.

Reviewed on Mar 16, 2020

I've never had a bad experience with Dr. Romero. He's a good man.

Reviewed on Feb 10, 2020

Dr Romero was very efficient, well spoken, and took time to explain and listen

Reviewed on Feb 10, 2020

the Dr and staff saved my life. I am eternally grateful to them. I will always recommend

Reviewed on Feb 7, 2020

Dr. Romero is excellent with Cliff Collins and the care he gives. He knows Cliff and has no problems in being able to treat him. cliff has a very rare Syndrome called Lennox-Gastaut Syndrome and wasn't to live past 5yrs old and is now 40yrs old. I give all the credit to God, Cleveland Clinic and then Cliff's two older brothers and myself. Your Clinic has been excellent (except some of your other areas) and Cliff and his family thanks Dr. Romero for his time, concern and excellent care through all these years.

Reviewed on Feb 7, 2020

Dr. Romero is excellent. I highly respect him as a person and as a very caring, concerned professional doctor.

Reviewed on Feb 6, 2020

Doctor is wonderful.

Reviewed on Jan 20, 2020

No one mentioned that I needed someone to be with me the entire time. I came alone. Please make sure people are told that before hand. The doctor and staff were great.

Reviewed on Nov 1, 2019

Dr Romero was knowdgeable and a great listener. since I don't make a big deal about my illness and am a quiet person, I really appreciate his hearing what I had to say.

Reviewed on Oct 15, 2019

doctors care for there patients

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