KC
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Chang, Gastroenterologist in Rialto, CA?
Dr. Karen Chang, DO is a Gastroenterologist, who primarily practices in Rialto, CA with 1 additional practice location. She is board certified. Dr. Chang is fluent in English, and is currently seeing new patients. Dr. Chang’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chang’s office at (909) 644-4035.
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:
- Upper Middle Abdominal Pain
- Widespread Abdominal Pain
- Pelvic Pain
- Right Upper Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
- General stomach pain
- Overall belly pain
- Diffuse abdominal pain
- Lower belly pain
- Pain in lower abdomen
- Abdominal discomfort
- RUQ pain
- Pain in upper right stomach
- Right upper belly pain
ICD-10 Codes:
- R1013: Epigastric pain
- R1084: Generalized abdominal pain
- R1030: Lower abdominal pain, unspecified
- R1011: Right upper quadrant pain
Also known as:
- Rectal Bleeding
- Dark, Tarry Stools (Melena)
- Vomiting Blood
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Nausea and Vomiting
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
- Melena
- Black Stools
- Upper GI Bleed Signs
- Hematemesis
- Bloody Vomit
- Upper GI Bleeding
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
- K921: Melena
- K920: Hematemesis
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
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:
- Abnormal Bowel Movements
- Bowel Movement
- Unusual stool
- Changes in poop
- Fecal changes
ICD-10 Codes:
- R195: Other fecal abnormalities
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Large Intestine Diverticulosis
- Diverticulosis and Diverticulitis
- Diverticular Disease
- Colon Diverticula
- Pockets in the Colon
ICD-10 Codes:
- K5730: Diverticulosis of large intestine without perforation or abscess without bleeding
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- First Degree Hemorrhoids
- Hemorrhoids
- Internal hemorrhoids
- Grade 1 hemorrhoids
- Mild hemorrhoids
ICD-10 Codes:
- K640: First degree hemorrhoids
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
Also known as:
- Cirrhosis
- Liver scarring
- End-stage liver disease
- Chronic liver failure
ICD-10 Codes:
- K7460: Unspecified cirrhosis of liver
Also known as:
- Abnormal Liver Function Test
- Liver Disease
- Irregular Liver Function Study
- Unusual Liver Exam
- Liver Disease Diagnosis
ICD-10 Codes:
- R945: Abnormal results of liver function studies
Also known as:
- Unexplained Weight Loss
- Involuntary Weight Loss
- Significant Weight Loss
- Unintentional Weight Loss
ICD-10 Codes:
- R634: Abnormal weight loss
Which procedures does Dr. Chang perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Karen Chang may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Chang's office.
Does Dr. Chang accept my insurance?
Dr. Chang accepts most major insurance plans. Important: Please call our office at (909) 644-4035 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chang accept in Rialto, CA?
Dr. Chang in Rialto, 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
Elevance Health Inc. (formerly Anthem)
Heritage Health
Inland Empire
Inland Faculty Medical Group, Inc
Medicare
OptumRx
Other Health Care Provider
State of California
UnitedHealthcare
View All Insurances
Where is Dr. Chang's office located?
Dr. Karen Chang's Primary Practice
2006 N Riverside Ave Ste B
Rialto, CA 92377
(909) 644-4035
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 1861855439.
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. Karen Chang's specialty?
Dr. Chang is a Gastroenterologist near Rialto, 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. Karen Chang affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Chang is affiliated with Arrowhead Regional Medical Center, St. Bernardine 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 Karen Chang accepting new patients in Rialto, CA?
Yes, Dr. Karen Chang is accepting new patients at this time.
Does Dr. Karen Chang offer online booking?
Please contact Dr. Chang's office at (909) 644-4035 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Karen Chang?
Please contact Dr. Chang's office at (909) 644-4035 for information regarding telehealth appointment availability or for scheduling assistance.
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