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Dr. Denis Chang, MD

Boston, MA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Chang, Pediatric Gastroenterologist in Boston, MA?

    Dr. Denis Chang, MD is a Pediatric Gastroenterologist, who primarily practices in Boston, MA. Dr. Chang is fluent in English, and is currently seeing new patients. Dr. Chang’s practice accepts UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chang’s office at (617) 355-6000.

    What languages does Dr. Chang speak?

    Dr. Chang and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Chang treat?

    As a Pediatric Gastroenterologist, Dr. Chang 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. Chang. 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.

    Also known as:

    • Celiac Disease
    • Gluten-Sensitive Enteropathy
    • Sprue
    • Coeliac Disease
    • Gluten Intolerance

    ICD-10 Codes:

    • K900: Celiac disease

    Also known as:

    • Other Abnormal Immune System Markers
    • Unusual immune findings
    • Abnormal immunology results
    • Abnormal serum immunology

    ICD-10 Codes:

    • R768: Other specified abnormal immunological findings in serum

    Also known as:

    • Esophageal Atresia
    • Esophageal Atresia with Tracheoesophageal Fistula
    • Birth Defects
    • Esophagus Disorder
    • Esophageal atresia/tracheoesophageal fistula
    • Fistulas
    • Blocked Esophagus at Birth
    • Congenital Esophageal Blockage
    • EA
    • EA/TEF
    • Blocked Esophagus with Fistula
    • Congenital Esophageal Fistula

    ICD-10 Codes:

    • Q390: Atresia of esophagus without fistula
    • Q391: Atresia of esophagus with tracheo-esophageal fistula

    Also known as:

    • Blocked Esophagus
    • Eosinophilic Esophagitis
    • Esophagus Disorder
    • Esophageal Obstruction
    • Food Pipe Blockage
    • Swallowing Difficulty
    • EoE
    • Allergic Esophagitis
    • Eosinophilic Inflammation of Esophagus

    ICD-10 Codes:

    • K222: Esophageal obstruction
    • K200: Eosinophilic esophagitis

    Also known as:

    • Fluid and Electrolyte Imbalance
    • Fluid and Electrolyte Balance
    • Electrolyte Disorder
    • Fluid Balance Problem

    ICD-10 Codes:

    • E878: Other disorders of electrolyte and fluid balance, not elsewhere classified

    Also known as:

    • Abdominal Pain
    • Widespread Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain
    • General stomach pain
    • Overall belly pain
    • Diffuse abdominal pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain
    • R1084: Generalized abdominal pain

    Also known as:

    • Other Difficulty Swallowing
    • Oropharyngeal Dysphagia
    • Swallowing Disorder
    • Dysphagia
    • Trouble swallowing
    • Swallowing problems
    • Difficulty Swallowing in Throat
    • Trouble Starting to Swallow
    • Throat Swallowing Problems

    ICD-10 Codes:

    • R1319: Other dysphagia
    • R1312: Dysphagia, oropharyngeal phase

    Also known as:

    • Other Eating and Drinking Problems
    • Unusual food cravings
    • Difficulty swallowing
    • Changes in appetite

    ICD-10 Codes:

    • R638: Other symptoms and signs concerning food and fluid intake

    Also known as:

    • Crohn's Disease Affecting Small and Large Intestines
    • Crohn's Disease
    • Crohn’s Disease
    • Panenteric Crohn's Disease
    • Crohn's of Both Bowels', 'Generalized Crohn's Disease
    • Regional Enteritis
    • Inflammatory Bowel Disease (IBD)
    • Terminal Ileitis

    ICD-10 Codes:

    • K5080: Crohn's disease of both small and large intestine without complications
    • K5090: Crohn's disease, unspecified, without complications

    Also known as:

    • Other Feeding Difficulties
    • Atypical Feeding Problems
    • Unusual Eating Issues
    • Specific Feeding Challenges

    ICD-10 Codes:

    • R6339: Other feeding difficulties

    Also known as:

    • Failure to Thrive in Children
    • Growth Disorder
    • Poor growth in children
    • Childhood growth problems
    • Infant growth failure

    ICD-10 Codes:

    • R6251: Failure to thrive (child)

    Also known as:

    • Acid Reflux
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion

    ICD-10 Codes:

    • K219: Gastro-esophageal reflux disease without esophagitis

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Other Circulatory System Disorder
    • Other Blood Vessel Problems
    • Unspecified Circulatory Disease

    ICD-10 Codes:

    • I998: Other disorder of circulatory system

    Also known as:

    • Constipation
    • Difficulty Passing Stool
    • Infrequent Bowel Movements
    • Hard Stools

    ICD-10 Codes:

    • K5909: Other constipation

    What procedures does Dr. Chang perform?

    As a Pediatric Gastroenterologist, Dr. Chang 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. Chang. 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.

    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:

    • 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:

    • Esophagus Widening Procedure (Endoscopic)
    • EGD with Esophageal Balloon Dilation
    • Upper Endoscopy with Injections
    • Diagnostic Upper Endoscopy with Biopsy
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with Widening
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • EGD with Submucosal Injections
    • Esophagogastroduodenoscopy with Injections
    • Stomach Scope with Medication
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample

    CPT Codes:

    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 43236: Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Upper Endoscopy for Foreign Body Removal
    • EGD for Foreign Body
    • Gastroscopy for Object Removal
    • Esophagogastroduodenoscopy for Foreign Body

    CPT Codes:

    • 43247: Esophagogastroduodenoscopy, flexible, transoral; with removal of foreign body(s)

    Also known as:

    • Gastrostomy Tube Replacement
    • G-tube Change
    • Percutaneous Gastrostomy Tube Exchange
    • Stomach Feeding Tube Replacement

    CPT Codes:

    • 43762: Replacement of gastrostomy tube, percutaneous, includes removal, when performed, without imaging or endoscopic guidance; not requiring revision of gastrostomy tract

    Also known as:

    • Upper Endoscopy with Tumor Ablation
    • EGD with Ablation
    • Esophagus, Stomach, Duodenum Scope with Ablation
    • Flexible Endoscopy Lesion Treatment

    CPT Codes:

    • 43270: Esophagogastroduodenoscopy, flexible, transoral; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)

    Also known as:

    • Gastro-Jejunostomy Tube Replacement
    • Percutaneous GJ Tube Replacement
    • Feeding Tube Change (GJ)
    • GJ Tube Exchange

    CPT Codes:

    • 49452: Replacement of gastro-jejunostomy tube, percutaneous, under fluoroscopic guidance including contrast injection(s), image documentation and report

    Also known as:

    • Swallowing Function Test
    • Dysphagia Tests
    • Dysphagia Evaluation
    • Oral Swallowing Assessment
    • Pharyngeal Swallowing Test
    • Swallowing Study

    CPT Codes:

    • 92610: Evaluation of oral and pharyngeal swallowing function

    Also known as:

    • Esophageal Balloon Distension Study
    • Esophageal distension test
    • Balloon provocation test
    • Esophageal pain study

    CPT Codes:

    • 91040: Esophageal balloon distension study, diagnostic, with provocation when performed

    Also known as:

    • Follow-up Medical Nutrition Therapy
    • Dietitian Re-assessment
    • Nutritional Counseling Session
    • Diet and Health Review

    CPT Codes:

    • 97803: Medical nutrition therapy; re-assessment and intervention, individual, face-to-face with the patient, each 15 minutes

    Also known as:

    • Direct Laryngoscopy with Microscope
    • Voice Box Exam
    • Larynx Scope
    • Tracheoscopy

    CPT Codes:

    • 31526: Laryngoscopy direct, with or without tracheoscopy; diagnostic, with operating microscope or telescope

    Also known as:

    • Diagnostic Bronchoscopy with Cell Washing
    • Bronchoscopy and Bronchoalveolar Lavage (BAL)
    • Fluoroscopy
    • Lung Scope with Cell Sample
    • Bronchoalveolar Lavage (BAL)
    • Flexible Bronchoscopy with Fluoroscopy

    CPT Codes:

    • 31622: Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; diagnostic, with cell washing, when performed (separate procedure)

    Also known as:

    • Bronchoscopy with Lung Wash (BAL)
    • Bronchoscopy and Bronchoalveolar Lavage (BAL)
    • Fluoroscopy
    • Bronchial lavage
    • BAL procedure
    • Lung washing
    • Flexible bronchoscopy

    CPT Codes:

    • 31624: Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; with bronchial alveolar lavage

    Also known as:

    • Chemical Cauterization of Granulation Tissue
    • Proud flesh removal
    • Chemical burn for wound overgrowth
    • Granulation tissue treatment
    • Wound cautery

    CPT Codes:

    • 17250: Chemical cauterization of granulation tissue (ie, proud flesh)

    Does Dr. Chang accept my insurance?

    Dr. Chang accepts most major insurance plans. Important: Please call our office at (617) 355-6000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Chang accept in Boston, MA?

    Dr. Chang in Boston, MA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross Blue Shield of Massachusetts

    • Boston Medical Center

    • CDPHP

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Fallon Community Health Plan

    • Health Plans

    • Point32Health

    • State of Massachusetts

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Chang's office located?

    Dr. Denis Chang's Primary Practice

    300 Longwood Ave

    Boston, MA 02115

    (617) 355-6000

    Get Directions

    What is Dr. Chang's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Chang's National Provider Identifier (NPI) number is 1952747420.

    What common questions do patients ask about Dr. Chang?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chang

    What is Dr. Denis Chang's specialty?

    Dr. Chang is a Pediatric Gastroenterologist near Boston, MA. 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. Contact Dr. Chang to book an appointment today.

    Is this Dr. Denis Chang affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Chang is affiliated with Emerson Health, CHRISTUS St. Vincent Regional Medical Center, The Miriam Hospital 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

    Where can I learn more about Pediatric Gastroenterologist?

    Explore Pediatric Gastroenterologist with 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 Denis Chang accepting new patients in Boston, MA?

    Yes, Dr. Denis Chang is accepting new patients at this time.

    Does Dr. Denis Chang offer online booking?

    Please contact Dr. Chang's office at (617) 355-6000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Denis Chang?

    Please contact Dr. Chang's office at (617) 355-6000 for information regarding telehealth appointment availability or for scheduling assistance.

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