Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Chang, Gastroenterologist in San Diego, CA?
Dr. Michael Chang, MD is a Gastroenterologist, who primarily practices in San Diego, CA with 1 additional practice location. He is board certified. Dr. Chang graduated from Drexel University College of Medicine Philadelphia. Dr. Chang is fluent in English, and is currently seeing new patients. Dr. Chang’s practice accepts Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chang’s office at (858) 249-6748.
Where did Dr. Chang go to medical school and complete their residency?
Medical School: Drexel University College of Medicine Philadelphia | UC Los Angeles, School of Medicine, Los Angeles | UC San Diego, School of Medicine, San Diego | Gastroenterologist | Assistant Professor of Medicine
Is Dr. Chang board certified as a Gastroenterologist?
Yes, Dr. Michael Chang, MD is board certified by the American Board of Internal Medicine
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 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:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Blocked Bile Duct
- Bile Duct Disease
- Biliary Obstruction
- Bile Duct Blockage
- Obstructed Bile Duct
ICD-10 Codes:
- K831: Obstruction of bile duct
Also known as:
- Pancreatic Cyst
- Pancreatic Disease
- Cyst on Pancreas
- Pancreatic Pseudocyst
- Fluid Sac on Pancreas
ICD-10 Codes:
- K862: Cyst of pancreas
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
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:
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Bile Duct Stones
- Gallstones
- Choledocholithiasis
- Biliary duct calculi
ICD-10 Codes:
- K8050: Calculus of bile duct without cholangitis or cholecystitis without obstruction
What procedures does Dr. Chang perform?
As a 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:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- Colonoscopy with Endoscopic Ultrasound
- Colonoscopy with Balloon Dilation
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Flexible colonoscopy with EMR
- Endoscopic mucosal resection (colon)
- Colon polyp removal during colonoscopy
- EUS Colonoscopy
- Endoscopic Ultrasound of Colon
- Flexible Colonoscopy with EUS
- Flexible Colonoscopy with Dilation
- Colon Dilation during Colonoscopy
- Endoscopic Balloon Dilation of Colon
CPT Codes:
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45390: Colonoscopy, flexible; with endoscopic mucosal resection
- 45391: Colonoscopy, flexible; with endoscopic ultrasound examination limited to the rectum, sigmoid, descending, transverse, or ascending colon and cecum, and adjacent structures
- 45386: Colonoscopy, flexible; with transendoscopic balloon dilation
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:
- Upper Endoscopy with Ultrasound (EUS)
- Upper Endoscopy with Polyp Removal
- Upper Endoscopy with Tumor Ablation
- Upper Endoscopy with Stomach/Duodenum Dilation
- EGD with endoscopic ultrasound
- Esophageal ultrasound
- Stomach ultrasound endoscopy
- Duodenal ultrasound endoscopy
- EGD with Polypectomy
- Esophagus, Stomach, Duodenum Scope with Removal
- Flexible Endoscopy Tumor Excision
- EGD with Ablation
- Esophagus, Stomach, Duodenum Scope with Ablation
- Flexible Endoscopy Lesion Treatment
- EGD with Dilation
- Esophageal Dilation
- Stomach Stricture Widening
- Duodenal Stricture Repair
CPT Codes:
- 43259: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination, including the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis
- 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 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)
- 43245: Esophagogastroduodenoscopy, flexible, transoral; with dilation of gastric/duodenal stricture(s) (eg, balloon, bougie)
Also known as:
- EGD with Esophageal Balloon Dilation
- Upper Endoscopy with Injections
- ERCP with Biopsy
- Diagnostic Upper Endoscopy with Biopsy
- Esophagus Widening Procedure (Endoscopic)
- Upper Endoscopy with Mucosal Resection
- Colonoscopy with Injections
- Small Intestine Endoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
- EGD with Submucosal Injections
- Esophagogastroduodenoscopy with Injections
- Stomach Scope with Medication
- Endoscopic Retrograde Cholangiopancreatography with Biopsy
- Bile Duct Biopsy (ERCP)
- Pancreatic Duct Biopsy (ERCP)
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- EGD with Mucosal Resection
- Endoscopic Removal of Esophageal Lesion
- Flexible Endoscopy with Tissue Removal
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
- Enteroscopy with biopsy
- Deep small bowel endoscopy
- Ileum endoscopy
- Small bowel scope with tissue sample
CPT Codes:
- 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
- 43261: Endoscopic retrograde cholangiopancreatography (ERCP); with biopsy, single or multiple
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 43254: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic mucosal resection
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
- 44377: Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, including ileum; with biopsy, single or multiple
Also known as:
- ERCP for Bile/Pancreatic Stent Exchange
- ERCP with Stent Placement
- ERCP with Bile or Pancreatic Duct Stent Removal
- ERCP with Bile Duct Dilation
- ERCP with Sphincterotomy
- Bile duct stent replacement (ERCP)
- Endoscopic retrograde cholangiopancreatography with stent exchange
- Biliary stent removal and replacement
- Pancreatic duct stent exchange
- Endoscopic Retrograde Cholangiopancreatography with Stent
- Bile Duct Stent Placement via ERCP
- Pancreatic Duct Stent Placement via ERCP
- Endoscopic Retrograde Cholangiopancreatography
- Bile Duct Stent Removal
- Pancreatic Duct Foreign Body Removal
- ERCP Stone Removal
- Endoscopic Retrograde Cholangiopancreatography with Dilation
- Bile Duct Widening via ERCP
- Pancreatic Duct Balloon Dilation
- Endoscopic retrograde cholangiopancreatography
- Bile duct scope
- Pancreatic duct scope
- Papillotomy
CPT Codes:
- 43276: Endoscopic retrograde cholangiopancreatography (ERCP); with removal and exchange of stent(s), biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent exchanged
- 43274: Endoscopic retrograde cholangiopancreatography (ERCP); with placement of endoscopic stent into biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent
- 43275: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s)
- 43277: Endoscopic retrograde cholangiopancreatography (ERCP); with trans-endoscopic balloon dilation of biliary/pancreatic duct(s) or of ampulla (sphincteroplasty), including sphincterotomy, when performed, each duct
- 43262: Endoscopic retrograde cholangiopancreatography (ERCP); with sphincterotomy/papillotomy
Also known as:
- ERCP with Gallstone Removal
- ERCP
- Endoscopic Gallstone Removal
- Biliary Duct Stone Removal
- Pancreatic Duct Cleaning
CPT Codes:
- 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)
Also known as:
- Upper Endoscopy with Ultrasound and Biopsy
- Biopsy
- Endoscopy
- Ultrasound
- EGD with Endoscopic Ultrasound Biopsy
- Transoral EUS-FNA
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43242: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)
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:
- Upper GI Scope with Stent Placement
- EGD with Stent
- Esophageal Stent Placement
- Stomach Stent Insertion
CPT Codes:
- 43266: Esophagogastroduodenoscopy, flexible, transoral; with placement of endoscopic stent (includes pre- and post-dilation and guide wire passage, when performed)
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Does Dr. Chang accept my insurance?
Dr. Chang accepts most major insurance plans. Important: Please call our office at (858) 249-6748 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chang accept in San Diego, CA?
Dr. Chang in San Diego, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene
Crown Cork and Seal Company
Humana
Medicare
OptumRx
Other Health Care Provider
Scan Health Plan
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Chang's office located?
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 1114155488.
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. Michael Chang's specialty?
Dr. Chang is a Gastroenterologist near San Diego, CA. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Chang to book an appointment today.
Is this Dr. Michael Chang affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Chang is affiliated with Jacobs Medical Center at UC San Diego Health, UCI Medical Center, Tri-City 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
Where can I learn more about Gastroenterologist?
Explore 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 Michael Chang accepting new patients in San Diego, CA?
Yes, Dr. Michael Chang is accepting new patients at this time.
Does Dr. Michael Chang offer online booking?
Please contact Dr. Chang's office at (858) 249-6748 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Michael Chang?
Please contact Dr. Chang's office at (858) 249-6748 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Michael Chang have?
Dr. Michael Chang is certified by the American Board of Internal Medicine.
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