
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Martinez, Pediatric Transplant Hepatologist in New York, NY?
Mercedes Martinez, MD, is a Professor of Pediatrics and Medicine, the Medical Director of the Intestinal Transplant Program at the Center for Liver Disease and Abdominal Organ Transplantation, and the Medical Director, Pediatric Abdominal Organ Transplantation Transplant at NewYork-Presbyterian. She provides state-of-the-art care for children with a multitude of liver and intestinal issues, including children with liver and intestinal failure that require transplantation and for those with intestinal failure associated liver disease. Dr. Martinez is nationally and internationally recognized for her expertise in treating liver tumors and autoimmune liver disorders. Her research interests include liver biomarkers of operational tolerance and personalized immunosuppression, liver tumors in children, autoimmune liver diseases, metabolic disorders, nutritional deficiencies associated with liver diseases, and intestinal failure. In addition, she has been part of multi-center collaborative efforts to study the impact of autoimmune liver disorders in children and clinical trials of immunosuppression withdrawal. Visit The Center for Liver Disease and Transplantation at columbiasurgery.org/liver
What are Areas of Expertise for Dr. Martinez?
Dr. Mercedes Martinez, MD is a highly-rated, board-certified Pediatric Transplant Hepatologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Martinez empowers patients to confidently navigate their health journey, specializing in Liver Disease, Transplant Immunology, Transplant Medicine-Bowel, Transplant Medicine-Liver, and comprehensive wellness support. Serving the New York, NY community, Dr. Martinez is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Martinez go to medical school and complete their residency?
Fellowship: NewYork-Presbyterian Hospital/Columbia University Medical Center
Residency: PEDIATRICS, LINCOLN MEDICAL AND MENTAL, BRONX, NY | Lincoln Medical and Mental Health Center | Children's Hospital, Santiago De Cuba | Children's Hospital Program
Medical School: Instituto Superior De Ciencias Medicas De Santiago De Cuba
Is Dr. Martinez board certified as a Pediatric Transplant Hepatologist?
Yes, Dr. Mercedes Martinez, MD is board certified by the American Board of Pediatrics , American Board of Dermatology , American Board of Dermatology since 2007, American Board of Pediatrics since 2008
What languages does Dr. Martinez speak?
Dr. Martinez and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Pediatric Transplant Hepatologist like Dr. Martinez typically treat?
As a Pediatric Transplant Hepatologist, Dr. Martinez diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Martinez. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Biliary Atresia
- Bile Duct Disease
- Birth Defects
- Blocked Bile Ducts at Birth
- Congenital Bile Duct Blockage
- Bile Duct Atresia
ICD-10 Codes:
- Q442: Atresia of bile ducts
Also known as:
- Immune Deficiency from Drugs
- Drug-Induced Immunodeficiency
- Medication-Caused Immune Weakness
ICD-10 Codes:
- D84821: Immunodeficiency due to drugs
Also known as:
- Other Specific Abnormal Blood Chemistry Results
- Blood
- Specified Blood Chemistry Imbalance
- Unusual Blood Chemistry Findings
- Specific Blood Panel Abnormalities
ICD-10 Codes:
- R7989: Other specified abnormal findings of blood chemistry
Also known as:
- High Liver Enzymes
- ALT Blood Test
- AST Test
- Elevated ALT
- Elevated AST
- Abnormal liver function test
ICD-10 Codes:
- R7401: Elevation of levels of liver transaminase levels
What procedures does a Pediatric Transplant Hepatologist like Dr. Martinez typically perform?
As a Pediatric Transplant Hepatologist, Dr. Martinez performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Martinez. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Ileoscopy with Biopsy through Stoma
- Stoma Ileoscopy
- Small Bowel Scope with Biopsy
- Ileal Pouch Endoscopy
CPT Codes:
- 44382: Ileoscopy, through stoma; with biopsy, single or multiple
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- Liver Biopsy (Needle)
- Percutaneous liver biopsy
- Needle liver sample
- Liver tissue biopsy
- Liver needle aspiration
CPT Codes:
- 47000: Biopsy of liver, needle; percutaneous
Also known as:
- Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
CPT Codes:
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
Also known as:
- Upper Endoscopy with Varices Banding
- Diagnostic Upper Endoscopy with Biopsy
- EGD with Band Ligation
- Esophageal Varices Banding
- Gastric Varices Treatment
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Does Dr. Martinez accept my insurance?
Dr. Martinez accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Martinez accept in New York, NY?
Dr. Martinez in New York, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
CVS Health (formerly Aetna)
EmblemHealth
Medicare
Mutual of Omaha
National Benefit Fund
State of Connecticut
State of New Jersey
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Martinez's office located?
Recognitions
Memberships & Associations
North American Society of Pediatric Gastroenterolgy, Hepatology and Nutrition
Member
American Association for the Study of Liver Disease
Member
What is Dr. Martinez's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Martinez's National Provider Identifier (NPI) number is 1316992522.
What common questions do patients ask about Dr. Martinez?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Martinez
What is Dr. Mercedes Martinez's specialty?
Dr. Martinez is a Pediatric Transplant Hepatologist near New York, NY.
What does a Pediatric Transplant Hepatologist do?
A pediatrician with expertise in transplant hepatology, possessing the specialized knowledge and skills necessary for pediatric gastroenterologists to care for patients before and after liver transplantation. This expertise encompasses all phases of the transplantation process, ensuring comprehensive management of liver transplant recipients.
Is this Dr. Mercedes Martinez affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Martinez is affiliated with Newyork-Presbyterian/columbia University Irving Medical Center, Newyork-Presbyterian Hospital/weill Cornell Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Pediatric Transplant Hepatologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Pediatric Transplant Hepatologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Mercedes Martinez accepting new patients in New York, NY?
Yes, Dr. Mercedes Martinez is accepting new patients at this time.
Does Dr. Mercedes Martinez offer online booking?
Please contact Dr. Martinez's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mercedes Martinez?
Please contact Dr. Martinez's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mercedes Martinez have?
Dr. Mercedes Martinez is certified by the American Board of Pediatrics and American Board of Dermatology.
Other Pediatric Transplant Hepatologist Near New York, NY

Dr. Dana Goldner, MD is a Pediatric Transplant Hepatologist, who primarily practices in New York, NY.

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Dr. Jennifer Vittorio, MD is a Pediatric Transplant Hepatologist, who primarily practices in New York, NY with 1 additional practice location. She is board certified.
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Dr. Steven Lobritto, MD is a Pediatric Transplant Hepatologist, who primarily practices in New York, NY. He is board certified.

NY-Presbyterian, Liver Center
3959 Broadway
New York, NY 10032
Connect with DR. Martinez
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