NK
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Kanagarajan, Gastroenterologist in Canton, GA?
Dr. Nandhakumar Kanagarajan, MD is a Gastroenterologist, who primarily practices in Canton, GA with 2 additional practice locations. He is board certified. Dr. Kanagarajan is fluent in English, and is currently seeing new patients. Dr. Kanagarajan’s practice accepts Medicaid, Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Kanagarajan’s office.
What are Areas of Expertise for Dr. Kanagarajan?
Dr. Nandhakumar Kanagarajan, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Kanagarajan empowers patients to confidently navigate their health journey, specializing in Colon Cancer Screening, Endoscopic Retrograde Cholangiopancreatography (ERCP), Endoscopic Ultrasound, Interventional Endoscopy, Pancreaticobiliary Endoscopy, and comprehensive wellness support. Serving the Canton, GA community, Dr. Kanagarajan is dedicated to enhancing lives through expert, patient-centered care.
Is Dr. Kanagarajan board certified as a Gastroenterologist?
Yes, Dr. Nandhakumar Kanagarajan, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Kanagarajan speak?
Dr. Kanagarajan and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Kanagarajan typically treat?
As a Gastroenterologist, Dr. Kanagarajan 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. Kanagarajan. 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:
- 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:
- Other Specific Bile Duct and Gallbladder Disease
- Bile Duct Disease
- Gallbladder Disease
- Specific Biliary Disorders
- Named Bile Duct Conditions
- Other Defined Biliary Diseases
ICD-10 Codes:
- K838: Other specified diseases of biliary tract
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Pancreatic Cyst
- Pancreatic Disease
- Cyst on Pancreas
- Pancreatic Pseudocyst
- Fluid Sac on Pancreas
ICD-10 Codes:
- K862: Cyst of pancreas
What procedures does a Gastroenterologist like Dr. Kanagarajan typically perform?
As a Gastroenterologist, Dr. Kanagarajan 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. Kanagarajan. 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:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- 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
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)
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:
- EGD with Endoscopic Ultrasound
- Diagnostic Upper Endoscopy with Biopsy
- Esophagus Widening Procedure (Endoscopic)
- Upper GI Endoscopy with Ultrasound
- EUS (Endoscopic Ultrasound)
- Esophagus, Stomach, Duodenum Ultrasound
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
CPT Codes:
- 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
- 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
Also known as:
- Upper Endoscopy with Ultrasound (EUS)
- EGD with endoscopic ultrasound
- Esophageal ultrasound
- Stomach ultrasound endoscopy
- Duodenal ultrasound endoscopy
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
Does Dr. Kanagarajan accept my insurance?
Dr. Kanagarajan 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. Kanagarajan accept in Canton, GA?
Dr. Kanagarajan in Canton, GA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Medicare
Mutual of Omaha
Oscar Health
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Kanagarajan's office located?
Recognitions
Castle Connolly Doctor’s Choice Awards
Doctor’s Choice - All Time
Among the most nominated for the Castle Connolly Top Doctor recognition across all time
Doctor’s Choice - Last 5 Years
Among the most nominated for the Castle Connolly Top Doctor recognition in the last 5 years
What is Dr. Kanagarajan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Kanagarajan's National Provider Identifier (NPI) number is 1902819667.
What common questions do patients ask about Dr. Kanagarajan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Kanagarajan
What is Dr. Nandhakumar Kanagarajan's specialty?
Dr. Kanagarajan is a Gastroenterologist near Canton, GA.
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 this Dr. Nandhakumar Kanagarajan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Kanagarajan is affiliated with Northside Hospital Cherokee, Northside Hospital Atlanta 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
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.
Is Nandhakumar Kanagarajan accepting new patients in Canton, GA?
Yes, Dr. Nandhakumar Kanagarajan is accepting new patients at this time.
Does Dr. Nandhakumar Kanagarajan offer online booking?
Please contact Dr. Kanagarajan's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Nandhakumar Kanagarajan?
Please contact Dr. Kanagarajan's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Nandhakumar Kanagarajan have?
Dr. Nandhakumar Kanagarajan is certified by the American Board of Internal Medicine.
Other Gastroenterologist Near Canton, GA
NP
Gastroenterologist
Dr. Neal Patel, MD is a Gastroenterologist, who primarily practices in Canton, GA with 2 additional practice locations.
Canton, GA

Gastroenterologist
Dr. Marc Rosenberg, MD is a Gastroenterologist, who primarily practices in Marietta, GA with 2 additional practice locations. He is board certified.
Marietta, GA
BK
Gastroenterologist
Dr. Bruce Kalmin, MD is a Gastroenterologist, who primarily practices in Canton, GA with 2 additional practice locations. He is board certified.
Canton, GA