Dr. Mark Tsai, MD

Northridge, CA

Accepting patients

Who is Dr. Tsai, Gastroenterologist in Northridge, CA?

Dr. Mark Tsai, MD is a Gastroenterologist, who primarily practices in Northridge, CA. Dr. Tsai graduated from University of California and completed his residency at Univ Mo-Columbia Sch Med, Gastroenterology Hurley Med Ctr, Internal Medicine. Dr. Tsai is fluent in English and Chinese, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Tsai’s office at (818) 772-2798.

Where did Dr. Tsai go to medical school and complete their residency?

Residency: Univ Mo-Columbia Sch Med, Gastroenterology Hurley Med Ctr, Internal Medicine | University of Missouri-Columbia Program
Medical School: Natl Taiwan Univ Coll Of Med- Taipei- Taiwan | University of California

What languages does Dr. Tsai speak?

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

Chinese
English

What conditions does a Gastroenterologist like Dr. Tsai typically treat?

As a Gastroenterologist, Dr. Tsai 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. Tsai. 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:

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:

Colon Polyps
Colonic Polyps
Colorectal polyps
Bowel polyps
Intestinal polyps

ICD-10 Codes:

K635: Polyp of colon

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:

Upper Middle Abdominal Pain
Abdominal Pain
Epigastric pain
Pain below breastbone
Upper stomach pain

ICD-10 Codes:

R1013: Epigastric pain

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:

Constipation
Difficulty Passing Stool
Infrequent Bowel Movements
Hard Stools

ICD-10 Codes:

K5900: Constipation, unspecified

Also known as:

Rectal Bleeding
Gastrointestinal Bleeding
Gastrointestinal (GI) Bleeding
Anal Bleeding
Blood in Stool
Lower GI Bleed

ICD-10 Codes:

K625: Hemorrhage of anus and rectum

What procedures does a Gastroenterologist like Dr. Tsai typically perform?

As a Gastroenterologist, Dr. Tsai 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. Tsai. 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:

CPT Codes:

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)

Also known as:

CPT Codes:

43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple

Does Dr. Tsai accept my insurance?

Please contact Dr. Tsai's office to confirm accepted insurance plans.

Where is Dr. Tsai's office located?

Dr. Mark Tsai's Primary Practice

18300 Roscoe Blvd

Northridge, CA 91325

(818) 772-2798

Get Directions

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

Dr. Tsai's National Provider Identifier (NPI) number is 1962566950.

What common questions do patients ask about Dr. Tsai?

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

What is Dr. Mark Tsai's specialty?

Dr. Tsai is a Gastroenterologist near Northridge, CA.

What does a Gastroenterologist do?

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.

Is Dr. Mark Tsai affiliated with a ranked Castle Connolly Top Hospital?

No, Dr. Tsai is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals 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 Gastroenterologist?: Guides for symptoms, conditions, and treatments

Understand your symptoms and know when it’s time to see a 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.