GS
17 Years of Experience
Accepting patients
Online booking
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Sivananthan, Gastroenterologist in Union, NJ?
Dr. Geethan Sivananthan, MD is a Gastroenterologist, who primarily practices in Union, NJ. He has been practicing for over 17 years and is board certified. He is a member of the American Board of Gastroenterology, American College of Gastroenterology, and American Medical Association. Dr. Sivananthan is fluent in English and Spanish, and is currently seeing new patients. Dr. Sivananthan’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sivananthan’s office.
Where did Dr. Sivananthan go to medical school and complete their residency?
Medical School: Rutgers, The State University of New Jersey
What languages does Dr. Sivananthan speak?
Dr. Sivananthan and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Sivananthan treat?
As a Gastroenterologist, Dr. Sivananthan 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. Sivananthan. 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 with Esophagitis
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Eosinophilic Esophagitis
- Gastroesophageal Reflux
- Heartburn
- Indigestion
- Reflux Esophagitis
- Acid Reflux Esophagus Inflammation
- Heartburn with Esophagus Damage
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
- K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding
Also known as:
- Colon Polyps
- History of Adenomatous and Serrated Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
- Past Colon Polyps
- Previous Adenomas
- History of Precancerous Colon Growths
ICD-10 Codes:
- K635: Polyp of colon
- Z860101: Personal history of adenomatous and serrated colon polyps
Also known as:
- Colon Polyps
- Non-Infectious Gastroenteritis and Colitis
- Colonic Polyps
- Digestive Disease
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
- Inflammation of Stomach and Intestines
- Non-Bacterial Colitis
- Gut Inflammation
ICD-10 Codes:
- Z86010: Personal history of colon polyps
- K529: Noninfective gastroenteritis and colitis, unspecified
Also known as:
- Fatty Liver Disease
- Liver Disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NAFLD
- NASH
- Hepatic steatosis
ICD-10 Codes:
- K760: Fatty (change of) liver, not elsewhere classified
Also known as:
- Gastrointestinal Bleeding
- Dark, Tarry Stools (Melena)
- Gastrointestinal (GI) Bleeding
- GI Bleeding
- Internal Digestive Bleeding
- Digestive Tract Hemorrhage
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K922: Gastrointestinal hemorrhage, unspecified
- K921: Melena
Also known as:
- Change in Bowel Habits
- Abnormal Bowel Movements
- Bowel Movement
- Altered Bowel Habits
- Irregular Bowel Movements
- Changes in Pooping
- Unusual stool
- Changes in poop
- Fecal changes
ICD-10 Codes:
- R194: Change in bowel habit
- R195: Other fecal abnormalities
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:
- Abdominal Bloating
- Gas
- Gas in the Digestive Tract
- Bloated Stomach
- Swollen Belly
- Gaseous Distension
ICD-10 Codes:
- R140: Abdominal distension (gaseous)
Also known as:
- Stomach and Duodenum Disorder
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
Also known as:
- Oropharyngeal Dysphagia
- Swallowing Disorder
- Difficulty Swallowing in Throat
- Trouble Starting to Swallow
- Throat Swallowing Problems
ICD-10 Codes:
- R1312: Dysphagia, oropharyngeal phase
Also known as:
- Family History of Digestive Organ Cancer
- Cancer
- Family History
- Genetic risk for gastrointestinal cancer
- Family history of GI cancer
- Hereditary digestive cancer
ICD-10 Codes:
- Z800: Family history of malignant neoplasm of digestive organs
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:
- Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D649: Anemia, unspecified
Also known as:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
Which procedures does Dr. Sivananthan perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Geethan Sivananthan 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. Sivananthan's office.
Does Dr. Sivananthan accept my insurance?
Dr. Sivananthan accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Sivananthan accept in Union, NJ?
Dr. Sivananthan in Union, NJ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Braven Health
Carepoint Health
Centene
CVS Health (formerly Aetna)
Express Scripts
Horizon BlueCross BlueShield
Humana
Independence Blue Cross
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Sivananthan's office located?
Would you like to schedule an appointment with Dr. Geethan Sivananthan?
Dr. Sivananthan has appointments available at his Union, NJ office. Please select a date and time below.
Recognitions
Memberships & Associations
American Board of Gastroenterology
Board Certified
American College of Gastroenterology
Professional Member
American Medical Association
Professional Member
What is Dr. Sivananthan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Sivananthan's National Provider Identifier (NPI) number is 1598907990.
What common questions do patients ask about Dr. Sivananthan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Sivananthan
What is Dr. Geethan Sivananthan's specialty?
Dr. Sivananthan is a Gastroenterologist near Union, NJ. 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. Sivananthan to book an appointment today.
Is this Dr. Geethan Sivananthan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Sivananthan is affiliated with Cooperman Barnabas Medical Center, Overlook 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 Geethan Sivananthan accepting new patients in Union, NJ?
Yes, Dr. Geethan Sivananthan is accepting new patients at this time.
Does Dr. Geethan Sivananthan offer online booking?
Yes, you can use online booking to schedule an appointment with Dr. Sivananthan, or contact the office for more information.
How can I make an appointment with Geethan Sivananthan?
Please contact Dr. Sivananthan's office for information regarding telehealth appointment availability or for scheduling assistance.
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