JM
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Marrero, Pediatric Gastroenterologist in Hartford, CT?
Dr. Jing Marrero is a Pediatric Gastroenterologist, who primarily practices in Hartford, CT with 1 additional practice location. Dr. Marrero is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Marrero’s office at (860) 545-9000.
What languages does Dr. Marrero speak?
Dr. Marrero and their clinical team can communicate with patients in the following languages:
English
What conditions does a Pediatric Gastroenterologist like Dr. Marrero typically treat?
As a Pediatric Gastroenterologist, conditions treated by Dr. Jing Marrero may include:
- Barrett's Esophagus
- Celiac Disease
- Constipation
- Crohn's Disease
- Diarrhea
- Diverticulitis
- Excessive Gas
- Exocrine Pancreatic Insufficiency
Please contact Dr. Marrero's office directly to confirm care for your specific condition, for more information, or to schedule a consultation.
What procedures does a Pediatric Gastroenterologist like Dr. Marrero typically perform?
As a Pediatric Gastroenterologist, Dr. Marrero 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. Marrero. 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:
- 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
Does Dr. Marrero accept my insurance?
Dr. Marrero accepts most major insurance plans. Important: Please call our office at (860) 545-9000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Marrero accept in Hartford, CT?
Dr. Marrero in Hartford, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
Elevance Health Inc. (formerly Anthem)
State of Connecticut
View All Insurances
Where is Dr. Marrero's office located?
What hospitals are Dr. Marrero affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Marrero has admitting privileges at the following hospitals:
William W. Backus Hospital,Norwich, CT
Ranked in 2 Specialties

Ranked in 6 Procedures

William W. Backus Hospital,Norwich, CT
Ranked in 2 Specialties
Ranked in 6 Procedures
The Hospital Of Central Connecticut - New Britain General Campus,New Britain, CT
Ranked in 2 Specialties

Ranked in 4 Procedures

The Hospital Of Central Connecticut - New Britain General Campus,New Britain, CT
Ranked in 2 Specialties
Ranked in 4 Procedures
Connecticut Children's Medical Center,Hartford, CT
Connecticut Children's Medical Center,Hartford, CT
Hartford Hospital,Hartford, CT
Hartford Hospital,Hartford, CT
What is Dr. Marrero's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Marrero's National Provider Identifier (NPI) number is 1568968261.
What common questions do patients ask about Dr. Marrero?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Marrero
What is Dr. Jing Marrero's specialty?
Dr. Marrero is a Pediatric Gastroenterologist near Hartford, CT.
What does a Pediatric Gastroenterologist do?
A pediatrician specializing in diagnosing and treating digestive system diseases in infants, children, and adolescents. This expert manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice and is skilled in performing complex diagnostic and therapeutic procedures using endoscopic techniques to visualize internal organs.
Is Dr. Jing Marrero affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Marrero is affiliated with William W. Backus Hospital, The Hospital Of Central Connecticut - New Britain General Campus 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 Gastroenterologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Pediatric Gastroenterologist. 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 Dr. Jing Marrero accepting new patients in Hartford, CT?
Yes, Dr. Jing Marrero is accepting new patients at this time.
Does Dr. Jing Marrero offer online booking?
Please contact Dr. Marrero's office at (860) 545-9000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Dr. Jing Marrero?
Please contact Dr. Marrero's office at (860) 545-9000 to schedule an appointment.
Where is Dr. Marrero's office located?
Dr. Marrero's offices are located in Hartford, CT and Westport, CT.
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