CZ
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Zahn, Gastroenterologist in San Gabriel, CA?
Dr. Chester Zahn, MD is a Gastroenterologist, who primarily practices in San Gabriel, CA. He is board certified. Dr. Zahn graduated from Stanford University School of Medicine and completed his residency at Montefiore M C H&L Moses Division. Dr. Zahn is fluent in English and Japanese, and is currently seeing new patients. Dr. Zahn’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. Zahn’s office at (626) 287-7222.
Where did Dr. Zahn go to medical school and complete their residency?
Residency: Montefiore M C H&L Moses Division | University of Michigan Program
Medical School: Stanford University School of Medicine
What languages does Dr. Zahn speak?
Dr. Zahn and their clinical team can communicate with patients in the following languages:
English
Japanese
What conditions does Dr. Zahn treat?
As a Gastroenterologist, Dr. Zahn 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. Zahn. 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:
- 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:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
Also known as:
- Dark, Tarry Stools (Melena)
- Gastrointestinal Bleeding
- Vomiting Blood
- Gastrointestinal (GI) Bleeding
- Nausea and Vomiting
- Melena
- Black Stools
- Upper GI Bleed Signs
- GI Bleeding
- Internal Digestive Bleeding
- Digestive Tract Hemorrhage
- Hematemesis
- Bloody Vomit
- Upper GI Bleeding
ICD-10 Codes:
- K921: Melena
- K922: Gastrointestinal hemorrhage, unspecified
- K920: Hematemesis
Also known as:
- Indigestion
- Gas in the Digestive Tract
- Indigestion (Dyspepsia)
- Dyspepsia
- Upset Stomach
- Stomach Discomfort
ICD-10 Codes:
- K30: Functional dyspepsia
Also known as:
- Stomach and Duodenum Disorder
- Stomach or Duodenum Polyp
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
- Gastric Polyp
- Duodenal Polyp
- Stomach Growth
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
- K317: Polyp of stomach and duodenum
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Benign Colon Polyp
- Benign Tumor
- Colonic Disease
- Colon Polyps
- Non-cancerous colon growth
- Colon adenoma
- Benign colon tumor
ICD-10 Codes:
- D126: Benign neoplasm of colon, unspecified
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Chronic Hepatitis B
- Hepatitis B
- Long-term Hepatitis B
- Persistent Hepatitis B
- Hep B
ICD-10 Codes:
- B181: Chronic viral hepatitis B without delta-agent
Also known as:
- Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D649: Anemia, unspecified
Also known as:
- Change in Bowel Habits
- Bowel Movement
- Altered Bowel Habits
- Irregular Bowel Movements
- Changes in Pooping
ICD-10 Codes:
- R194: Change in bowel habit
Also known as:
- Barrett's Esophagus
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
Also known as:
- Hemorrhoids
- Piles
- Swollen Veins in Anus
- Anal Lumps
ICD-10 Codes:
- K649: Unspecified hemorrhoids
Also known as:
- Anorexia
- Eating Disorder
- Loss of appetite
- Lack of desire to eat
- Eating disorder
ICD-10 Codes:
- R630: Anorexia
Also known as:
- Irritable Bowel Syndrome (IBS)
- Irritable Bowel Syndrome
- Spastic Colon
- Functional Bowel Disorder
- IBS
ICD-10 Codes:
- K589: Irritable bowel syndrome, unspecified
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
Which procedures does Dr. Zahn perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Chester Zahn 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. Zahn's office.
Does Dr. Zahn accept my insurance?
Dr. Zahn accepts most major insurance plans. Important: Please call our office at (626) 287-7222 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Zahn accept in San Gabriel, CA?
Dr. Zahn in San Gabriel, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Commercial
All Other Third Party
Blue Shield of California
Centene
City of Los Angeles
Clever Care Health Plan
Elevance Health Inc. (formerly Anthem)
Medicaid
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Zahn's office located?
Dr. Chester Zahn's Primary Practice
1026 E Las Tunas Dr
San Gabriel, CA 91776
(626) 287-7222
What is Dr. Zahn's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Zahn's National Provider Identifier (NPI) number is 1639146442.
What common questions do patients ask about Dr. Zahn?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Zahn
What is Dr. Chester Zahn's specialty?
Dr. Zahn is a Gastroenterologist near San Gabriel, 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. Zahn to book an appointment today.
Is this Dr. Chester Zahn affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Zahn is affiliated with Usc Arcadia Hospital which is a Castle Connolly Top Hospital. 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 Chester Zahn accepting new patients in San Gabriel, CA?
Yes, Dr. Chester Zahn is accepting new patients at this time.
Does Dr. Chester Zahn offer online booking?
Please contact Dr. Zahn's office at (626) 287-7222 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Chester Zahn?
Please contact Dr. Zahn's office at (626) 287-7222 for information regarding telehealth appointment availability or for scheduling assistance.
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