Medicare Enrolled
Dr. Jason Samarasena, M.D.
Gastroenterology · Orange, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Speaking/Promotional
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Samarasena from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Samarasena
Dr. Jason Samarasena is a gastroenterology specialist in Orange, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Samarasena performed 910 Medicare services across 838 unique beneficiaries.
Between the years covered by Open Payments, Dr. Samarasena received a total of $241,051 from 31 pharmaceutical and/or device companies across 361 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Samarasena is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 18 years in practice
▲ Top 39% volume in CA
$241,051 industry payments
Medicare Practice Summary
Medicare Utilization ↗910
Medicare services
Top 39% in CA for gastroenterology
838
Unique beneficiaries
$129
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~51 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
163 | $44 | $681 |
| Endoscopic ultrasound of esophagus, stomach, or upper small bowel An ultrasound exam of the esophagus, stomach, and/or upper small bowel performed using a flexible endoscope. |
156 | $160 | $1,207 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
76 | $169 | $1,217 |
| Upper endoscopy with biopsy A procedure using a flexible tube to examine the esophagus, stomach, and upper small intestine, during which tissue samples are collected for microscopic analysis. |
67 | $88 | $761 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
48 | $90 | $578 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
48 | $85 | $1,028 |
| Endoscopic ultrasound-guided needle biopsy A procedure using an ultrasound-equipped endoscope to guide a needle for tissue sampling of the esophagus, stomach, or upper small bowel. |
37 | $198 | $1,679 |
| Removal of large bowel tissue using flexible endoscope A procedure to remove tissue from the large intestine using a flexible tube with a camera. The endoscope allows the provider to access and excise the tissue directly. |
35 | $282 | $1,498 |
| Esophageal sensation study by balloon distension This procedure evaluates how the esophagus senses pressure or stretching by inflating a small balloon within the esophagus. |
32 | $41 | $225 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
32 | $111 | $597 |
| Balloon dilation of esophagus, stomach, or upper small bowel, less than 3.0 cm A procedure using a flexible endoscope to widen a narrowed section of the esophagus, stomach, or upper small bowel with a balloon that is less than 3.0 cm in length. |
30 | $102 | $696 |
| Endoscopic destruction of esophagus, stomach, or bowel growth Removal of a polyp or growth in the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The procedure is performed through the mouth to access and destroy the abnormal tissue. |
27 | $166 | $1,039 |
| Pancreatic or bile duct stent insertion A flexible endoscope is used to place a stent into the pancreatic or bile duct to keep it open. |
23 | $356 | $2,090 |
| Endoscopic removal of bile or pancreatic duct stone A flexible endoscope is used to remove stones or debris from the bile or pancreatic ducts. |
20 | $90 | $2,036 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
19 | $153 | $856 |
| Endoscopic ultrasound of large bowel An ultrasound exam of the large bowel performed using a flexible endoscope to visualize the intestinal wall and surrounding structures. |
18 | $102 | $1,172 |
| Endoscopic injection of esophagus, stomach, or upper small bowel A procedure where a flexible endoscope is used to deliver an injection into the esophagus, stomach, or upper small intestine. |
16 | $78 | $699 |
| Endoscopic removal of esophagus, stomach, or small bowel polyps This procedure uses an endoscope and a mechanical snare to remove polyps or growths from the esophagus, stomach, or upper small bowel. |
14 | $99 | $886 |
| Endoscopic removal of esophagus, stomach, or bowel lining A procedure using a flexible endoscope to remove the tissue lining of the esophagus, stomach, and/or upper small bowel. |
14 | $225 | $1,223 |
| Endoscopic ultrasound of esophagus, stomach, or small bowel An ultrasound exam of the esophagus, stomach, and/or upper small bowel performed using a flexible endoscope inserted through the mouth. |
13 | $124 | $936 |
| Stent replacement in pancreatic or bile duct A flexible endoscope is used to remove an existing stent and insert a new one into the pancreatic or bile duct. |
11 | $395 | $2,176 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
11 | $169 | $856 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
3.7% high complexity
65.5% medium
30.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$241,051
Total received (2018-2024)
Avg $34,436/year across 7 years
Top 1% in CA for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
31
Companies
361
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$139,033 (57.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$90,655 (37.6%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$11,363 (4.7%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$38,304
2023
$43,288
2022
$12,478
2021
$12,589
2020
$24,773
2019
$47,575
2018
$62,043
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Olympus Corporation of the Americas
$8,786
Micro-tech Endoscopy USA, Inc.
$6,926
Cook Incorporated
$6,600
FUJIFILM Healthcare Americas Corporation
$4,898
Ovesco Endoscopy USA, Inc.
$2,450
Olympus America Inc.
$2,416
Boston Scientific Corporation
$2,137
Applied Medical Resources Corporation
$1,125
Cook Medical LLC
$1,039
Olympus Medical Systems Corporation
$922
CONMED Corporation
$170
ERBE USA INC
$167
US ENDOSCOPY
$150
Medtronic, Inc.
$139
Phathom Pharmaceuticals, Inc.
$124
Galvanize Therapeutics, Inc
$117
Lucid Diagnostics Inc.
$92
PENTAX of America, Inc.
$29
ERBE USA Inc
$17
Top 3 companies account for 58.2% of 2024 payments
All-time payments by company (2018-2024) ›
Olympus Corporation of the Americas
$68,369
Covidien LP
$36,223
CONMED Corporation
$29,718
Boston Scientific Corporation
$16,314
Olympus America Inc.
$13,686
Cook Incorporated
$9,613
Micro-tech Endoscopy USA, Inc.
$9,293
US ENDOSCOPY
$8,650
Medtronic, Inc.
$7,922
Applied Medical Resources Corporation
$6,382
FUJIFILM Healthcare Americas Corporation
$5,236
GI Supply, Inc.
$5,200
Mauna Kea Technologies, Inc.
$4,712
Merit Medical Systems Inc
$3,500
ERBE USA Inc
$3,329
Cook Medical LLC
$3,123
Ovesco Endoscopy USA, Inc.
$2,450
PENTAX of America, Inc.
$2,062
Olympus Corporation
$1,545
Olympus Medical Systems Corporation
$922
CSA Medical, Inc
$914
C2 Therapeutics, Inc
$571
STERIS CORPORATION
$505
ERBE USA INC
$167
Lucid Diagnostics Inc.
$162
Phathom Pharmaceuticals, Inc.
$124
Gilead Sciences, Inc.
$124
Galvanize Therapeutics, Inc
$117
Lumendi LLC
$94
Creo Medical Inc.
$16
Ambu Inc.
$8
Top 3 companies account for 55.7% of all-time payments
Associated products mentioned in payments ›
ALIYA SYSTEM · AXIOS · All Products · Apollo ESG NXT System · Axios · BARRX · Barrx · Beacon · Bravo · C2 CRYOBALLOON · CONMED BILIARY · CONMED Biliary · CONMED GASTROSTOMY · CONMED GENERATORS · CONMED HEMOSTASIS · COOK MEDICAL BILIARY · COOK MEDICAL HEMOSTASIS · COOK MEDICAL METAL STENTS · CRE PRO · Cook Medical Endoscopic Ultrasound · Cook Medical Hemospray · Cook Medical Hemostasis · Creo Medical · Cytosponge · DAT Closure Device · DiLumen · ECHOTIP · ECHOTIP INSIGHT · ENDOFLIP · ERBE · ESD Knife · EVIS EUS ENDOSCOPIC ULTRASOUND CENTER · EVIS EXERA · EVIS EXERA lll COLONOVIDEOSCOPE · EXALT Model D · EchoTip · EndoClot PHS · EndoFlip · Endocuff Devices · FUJIFILM · FUSION · GELPOINT V-PATH · GI GENIUS · GORE VIABIL · HANAROSTENT Esophagus TTS(CCC) · HANAROSTENT LowAxTM Colon/Rectum(NNN) · HEMOSPRAY · Hemospray · INSPIRA · INSTINCT · N/A · NEXPOWDER · Olympus Biliary Devices · Olympus EUS Devices · PRODIGI · Preirus · SYSTEM 5000 · Single Use Aspiration Needle NA-U200H · Single Use Electrosurgical Knife KD-655 · Single Use Repositionable Clip · VIO3 Hybrid Knife · VISICLEAR · VISIGLIDE · VOQUEZNA · truFreeze · vio ejet hk
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (58%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in gastroenterology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 1% for gastroenterology in CA.
Geographic Context
Gastroenterologists within 10 mi
290
Per 100K population
9.2
County median income
$113,702
Nearest hospital
PROVIDENCE ST. JOSEPH HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Samarasena is a mixed practice specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 1% of CA peers, with 18 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Samarasena experienced with upper gi endoscopy with biopsy?
Based on Medicare claims data, Dr. Samarasena performed 163 upper gi endoscopy with biopsy services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Samarasena receive payments from pharmaceutical companies?
Yes. Dr. Samarasena received a total of $241,051 from 31 companies across 361 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Samarasena's costs compare to other gastroenterologists in Orange?
Dr. Samarasena's average Medicare payment per service is $129. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Samarasena) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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