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14 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Samarasena, Gastroenterologist in Orange, CA?
Dr. Jason Samarasena, MD is a Gastroenterologist, who primarily practices in Orange, CA. He has been practicing for over 14 years and is board certified. Dr. Samarasena graduated from Memorial University of Newfoundland / Faculty of Medicine. Dr. Samarasena is fluent in English, and is currently seeing new patients. Dr. Samarasena’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Samarasena’s office at (888) 717-4463.
Where did Dr. Samarasena go to medical school and complete their residency?
Medical School: Memorial University of Newfoundland / Faculty of Medicine | Memorial University of Newfoundland / Faculty of Medicine
Is Dr. Samarasena board certified as a Gastroenterologist?
Yes, Dr. Jason Samarasena, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Samarasena speak?
Dr. Samarasena and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Samarasena treat?
As a Gastroenterologist, Dr. Samarasena 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. Samarasena. 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:
- Other Esophagus Condition
- Barrett's Esophagus
- Esophagus Disorder
- Barrett’s Esophagus
- Various esophageal diseases
- Miscellaneous esophagus problems
- Other food pipe issues
- Barrett's condition
- Esophageal metaplasia
ICD-10 Codes:
- K2289: Other specified disease of esophagus
- K2270: Barrett's esophagus without dysplasia
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:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
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:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Abnormal Digestive Tract Imaging
- Abnormal GI scan
- Unusual digestive imaging
- Digestive system imaging findings
ICD-10 Codes:
- R933: Abnormal findings on diagnostic imaging of other parts of digestive tract
What procedures does Dr. Samarasena perform?
As a Gastroenterologist, Dr. Samarasena 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. Samarasena. 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:
- EGD with Esophageal Balloon Dilation
- Diagnostic Upper Endoscopy with Biopsy
- EGD with Endoscopic Ultrasound
- Upper Endoscopy with Mucosal Resection
- Upper Endoscopy with Injections
- Esophagus Widening Procedure (Endoscopic)
- Flexible Sigmoidoscopy with Biopsy
- Flexible Sigmoidoscopy with Endoscopic Ultrasound
- Upper Endoscopy with Varices Banding
- ERCP with Biopsy
- Colorectal Cancer Screening Tests
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Upper GI Endoscopy with Ultrasound
- EUS (Endoscopic Ultrasound)
- Esophagus, Stomach, Duodenum Ultrasound
- EGD with Mucosal Resection
- Endoscopic Removal of Esophageal Lesion
- Flexible Endoscopy with Tissue Removal
- EGD with Submucosal Injections
- Esophagogastroduodenoscopy with Injections
- Stomach Scope with Medication
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- Sigmoid Colon Scope with Biopsy
- Lower Endoscopy with Tissue Sample
- Flexible Sigmoidoscopy and Biopsy
- Rectum and Lower Colon Exam
- Sigmoidoscopy with EUS
- Lower Endoscopy with Ultrasound
- Rectum and Lower Colon Exam with Ultrasound
- EGD with Band Ligation
- Esophageal Varices Banding
- Gastric Varices Treatment
- Endoscopic Retrograde Cholangiopancreatography with Biopsy
- Bile Duct Biopsy (ERCP)
- Pancreatic Duct Biopsy (ERCP)
CPT Codes:
- 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
- 43254: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic mucosal resection
- 43236: Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
- 45341: Sigmoidoscopy, flexible; with endoscopic ultrasound examination
- 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices
- 43261: Endoscopic retrograde cholangiopancreatography (ERCP); with biopsy, single or multiple
Also known as:
- Upper Endoscopy with Ultrasound (EUS)
- Upper Endoscopy with Tumor Ablation
- Upper Endoscopy with Polyp Removal
- Upper Endoscopy with Stomach/Duodenum Dilation
- EGD with endoscopic ultrasound
- Esophageal ultrasound
- Stomach ultrasound endoscopy
- Duodenal ultrasound endoscopy
- EGD with Ablation
- Esophagus, Stomach, Duodenum Scope with Ablation
- Flexible Endoscopy Lesion Treatment
- EGD with Polypectomy
- Esophagus, Stomach, Duodenum Scope with Removal
- Flexible Endoscopy Tumor Excision
- EGD with Dilation
- Esophageal Dilation
- Stomach Stricture Widening
- Duodenal Stricture Repair
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
- 43270: Esophagogastroduodenoscopy, flexible, transoral; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)
- 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 43245: Esophagogastroduodenoscopy, flexible, transoral; with dilation of gastric/duodenal stricture(s) (eg, balloon, bougie)
Also known as:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Endoscopic Ultrasound
- Colonoscopy with Polyp/Tumor Removal
- Colonoscopy with Balloon Dilation
- 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
- Flexible colonoscopy with EMR
- Endoscopic mucosal resection (colon)
- Colon polyp removal during colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- EUS Colonoscopy
- Endoscopic Ultrasound of Colon
- Flexible Colonoscopy with EUS
- Flexible colonoscopy with ablation
- Colon polyp removal
- Colon tumor destruction
- Therapeutic colonoscopy
- Flexible Colonoscopy with Dilation
- Colon Dilation during Colonoscopy
- Endoscopic Balloon Dilation of Colon
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
- 45390: Colonoscopy, flexible; with endoscopic mucosal resection
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45391: Colonoscopy, flexible; with endoscopic ultrasound examination limited to the rectum, sigmoid, descending, transverse, or ascending colon and cecum, and adjacent structures
- 45388: Colonoscopy, flexible; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)
- 45386: Colonoscopy, flexible; with transendoscopic balloon dilation
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:
- Upper Endoscopy with Microscopic View
- Upper GI Scope with Stent Placement
- Esophagogastroduodenoscopy with optical endomicroscopy
- EGD with advanced imaging
- Flexible endoscopy with cellular imaging
- EGD with Stent
- Esophageal Stent Placement
- Stomach Stent Insertion
CPT Codes:
- 43252: Esophagogastroduodenoscopy, flexible, transoral; with optical endomicroscopy
- 43266: Esophagogastroduodenoscopy, flexible, transoral; with placement of endoscopic stent (includes pre- and post-dilation and guide wire passage, when performed)
Also known as:
- ERCP with Bile or Pancreatic Duct Stent Removal
- ERCP with Stent Placement
- ERCP for Bile/Pancreatic Stent Exchange
- Diagnostic ERCP
- ERCP with Sphincterotomy
- Endoscopic Retrograde Cholangiopancreatography
- Bile Duct Stent Removal
- Pancreatic Duct Foreign Body Removal
- ERCP Stone Removal
- Endoscopic Retrograde Cholangiopancreatography with Stent
- Bile Duct Stent Placement via ERCP
- Pancreatic Duct Stent Placement via ERCP
- Bile duct stent replacement (ERCP)
- Endoscopic retrograde cholangiopancreatography with stent exchange
- Biliary stent removal and replacement
- Pancreatic duct stent exchange
- Endoscopic retrograde cholangiopancreatography
- Bile duct scope
- Pancreatic duct scope
- Papillotomy
CPT Codes:
- 43275: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s)
- 43274: Endoscopic retrograde cholangiopancreatography (ERCP); with placement of endoscopic stent into biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent
- 43276: Endoscopic retrograde cholangiopancreatography (ERCP); with removal and exchange of stent(s), biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent exchanged
- 43260: Endoscopic retrograde cholangiopancreatography (ERCP); diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 43262: Endoscopic retrograde cholangiopancreatography (ERCP); with sphincterotomy/papillotomy
Also known as:
- Upper Endoscopy with Ultrasound and Biopsy
- Biopsy
- Endoscopy
- Ultrasound
- EGD with Endoscopic Ultrasound Biopsy
- Transoral EUS-FNA
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43242: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)
Also known as:
- ERCP with Gallstone Removal
- ERCP
- Endoscopic Gallstone Removal
- Biliary Duct Stone Removal
- Pancreatic Duct Cleaning
CPT Codes:
- 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)
Also known as:
- Upper GI Endoscopy with Ultrasound Biopsy
- Biopsy
- Endoscopy
- Ultrasound
- EGD with EUS-FNA
- Endoscopic Ultrasound Biopsy
- Esophageal/Stomach Biopsy
CPT Codes:
- 43238: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s), (includes endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures)
Also known as:
- Upper Endoscopy for Foreign Body Removal
- EGD for Foreign Body
- Gastroscopy for Object Removal
- Esophagogastroduodenoscopy for Foreign Body
CPT Codes:
- 43247: Esophagogastroduodenoscopy, flexible, transoral; with removal of foreign body(s)
Also known as:
- POEM Procedure (Esophageal Myotomy)
- Peroral Endoscopic Myotomy
- Esophageal Muscle Cutting
- Achalasia Treatment
- Transoral Esophageal Myotomy
CPT Codes:
- 43497: Lower esophageal myotomy, transoral (ie, peroral endoscopic myotomy [POEM])
Also known as:
- Endoscopic Tube Placement into Bile or Pancreatic Duct
- ERCP Cannulation
- Bile Duct Cannulation
- Pancreatic Duct Access (Endoscopic)
CPT Codes:
- 43273: Endoscopic cannulation of papilla with direct visualization of pancreatic/common bile duct(s) (List separately in addition to code(s) for primary procedure)
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Sigmoidoscopy with Polyp Removal
- Colorectal Cancer Screening Tests
- Flexible Sigmoidoscopy with Polypectomy
- Colon Polyp Removal (Lower Colon)
- Sigmoid Colon Lesion Excision
- Lower Endoscopy with Polyp Removal
CPT Codes:
- 45338: Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
Also known as:
- Stopping Bleeding in Esophagus, Stomach, or Duodenum
- EGD with Bleeding Control
- Upper GI Endoscopy for Bleeding
- Gastric Bleeding Treatment
CPT Codes:
- 43255: Esophagogastroduodenoscopy, flexible, transoral; with control of bleeding, any method
Also known as:
- EGD with Ultrasound-Guided Injection
- Upper Endoscopy with EUS Injection
- Esophagus, Stomach, Duodenum Ultrasound
- Transmural Injection via Endoscopy
CPT Codes:
- 43253: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided transmural injection of diagnostic or therapeutic substance(s) (eg, anesthetic, neurolytic agent) or fiducial marker(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)
Also known as:
- Feeding Tube Placement with Endoscopy
- PEG Tube Placement
- Gastrostomy Tube Insertion
- EGD with Feeding Tube
- Percutaneous Endoscopic Gastrostomy
CPT Codes:
- 43246: Esophagogastroduodenoscopy, flexible, transoral; with directed placement of percutaneous gastrostomy tube
Also known as:
- Esophageal Balloon Distension Study
- Esophageal Motility Study
- Esophageal distension test
- Balloon provocation test
- Esophageal pain study
- Esophageal manometry
- Swallowing function test
- GERD test
- Esophageal pressure study
CPT Codes:
- 91040: Esophageal balloon distension study, diagnostic, with provocation when performed
- 91010: Esophageal motility (manometric study of the esophagus and/or gastroesophageal junction) study with interpretation and report;
Also known as:
- Wireless Esophageal pH Test
- Esophageal pH Test
- Bravo pH Test
- Esophageal Reflux Monitoring
- Acid Reflux Test
CPT Codes:
- 91035: Esophagus, gastroesophageal reflux test; with mucosal attached telemetry pH electrode placement, recording, analysis and interpretation
Does Dr. Samarasena accept my insurance?
Dr. Samarasena accepts most major insurance plans. Important: Please call our office at (888) 717-4463 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Samarasena accept in Orange, CA?
Dr. Samarasena in Orange, 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
Blue Shield of California
CalOptima
Centene
Crown Cork and Seal Company
HealthComp
Medicare
Monarch HealthCare
Other Health Care Provider
UnitedHealthcare
View All Insurances
Where is Dr. Samarasena's office located?
Dr. Jason Samarasena's Primary Practice
101 The City Dr S Bldg 200 Ste 720
Orange, CA 92868
(888) 717-4463
What is Dr. Samarasena's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Samarasena's National Provider Identifier (NPI) number is 1629253364.
What common questions do patients ask about Dr. Samarasena?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Samarasena
What is Dr. Jason Samarasena's specialty?
Dr. Samarasena is a Gastroenterologist near Orange, 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. Samarasena to book an appointment today.
Is this Dr. Jason Samarasena affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Samarasena is affiliated with UCI Medical Center, Hoag Hospital Newport Beach, Marshall Hospital, AHMC Anaheim Regional Medical Center, Providence Mission Hospital Mission Viejo 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 Jason Samarasena accepting new patients in Orange, CA?
Yes, Dr. Jason Samarasena is accepting new patients at this time.
Does Dr. Jason Samarasena offer online booking?
Please contact Dr. Samarasena's office at (888) 717-4463 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Jason Samarasena?
Please contact Dr. Samarasena's office at (888) 717-4463 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Jason Samarasena have?
Dr. Jason Samarasena is certified by the American Board of Internal Medicine.
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