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, [ None or N/A ]

Graduate School - University of Puerto Rico

Residency - University of Puerto Rico Affiliated Hospitals
Internal Medicine
San Juan, [ None or N/A ]

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 12/11/2018, 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

169 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
4.9 out of 5
Explains 4.9
Listens 4.9
Courtesy, Respect & Concern 4.9
Knows Medical History 4.9
Time Spent with Patient 4.9
Patient Rating of Doctor 4.9

13 Patient Comments

Reviewed on Sep 13, 2019

Dr. Romero is absolutely fantastic. he is compassionate and thorough.

Reviewed on Aug 21, 2019

Dr Romero Marrerro has been very good and has been trying to help diagnose my pain in stomach and side. Very happy to have him working on this for me.

Reviewed on Aug 21, 2019

Dr Romarro-Marrerro and Dr Xu have worked together in trying to solve my problems. Very much appreciate both of them

Reviewed on Aug 20, 2019

He is excellent as a doctor who is kind and patient and thorough with me.

Reviewed on Jul 25, 2019

We were very impressed with Doctor Romano and his staff. He took a fair amount of time with me and answered my questions. All in all I was pleased with him and his staff.

Reviewed on Jul 24, 2019

I was impressed with the dr and his staff they included neon every detail and explain everything that was going on in the rm.

Reviewed on Jul 1, 2019

Dr. Romero is excellent and is a very caring, understanding doctor.

Reviewed on May 25, 2019

I truly loved all the doctors that took care of me & the fine care & respect they all treated me & my condition & my concerns of my health issues!!

Reviewed on Apr 18, 2019

Dr Romero provided very efficient and professional services

Reviewed on Mar 21, 2019

Dr Romero-Marrero is an excellent physician, very astute, attentive and take the time to actually listen to all of your health/medical concerns and reacts accordingly. He's always treated me with respect, showed concerned, listened well and has always been able to help with my medical concerns and issues. I've never felt rushed or like a number on an assembly line, I would very highly recommend him to anyone needing care in his field he has excellent expertise. His bedside manor is wonderful. I would never want anyone but him to do my EGD's and Colonoscopy, also. I've never had a bad experience with him and he assures I'm getting the proper and best treatments for my condition.

Reviewed on Mar 12, 2019

Dr Romero was great. He was able to answer my questions plus offer his expertise in my matter. Very professional.

Reviewed on Nov 29, 2018

Dr. Romero was extremely patient and thorough with me.

Reviewed on Nov 19, 2018

Dr. Romero was amazing. Making sure I knew exactly the reason I was there for, know the risks of this procedure, he gave me all the information I needed.

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