Doctor profile · Federal record
Dr. Jason Samarasena, M.D.
Gastroenterology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Orange, CA
- NPI 1629253364
- Accepts Medicare
- MIPS 91.2 / 100 · 2023
- 21 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
101 the City Dr S, Building 200, Suite 720
Orange, CA 928683201
(714) 456-6693
fax (714) 456-8874 - Mailing address
-
363 Newport Ave, Unit 317
Long Beach, CA 908142661
Credentials & registration
- NPI registered
- December 2007 — 19 yrs on file
- Profile last updated
- January 24, 2025
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A100124
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629253364. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
910
Distinct HCPCS
10
Medicare allowed
$147,490
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 163 | 154 | $55 | |
43259 |
Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 156 | 135 | $201 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 76 | 76 | $219 | |
43252 |
Microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 67 | 62 | $112 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 48 | 46 | $113 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 48 | 46 | $107 | |
43242 |
Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 37 | 36 | $248 | |
45390 |
Removal of large bowel tissue using a flexible endoscope | 35 | 33 | $352 | |
91040 |
Study of esophageal sensation by balloon distension | 32 | 32 | $52 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 32 | 32 | $139 |
In context: peer comparison
Among 16 peers in Orange Gastroenterology Physician, average services per provider: 65. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$38,304
Transactions
83
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Olympus Corporation of the Americas | 21 | $8,785.59 | |
| Micro-Tech Endoscopy USA, INC. | 5 | $6,925.62 | |
| Cook Incorporated | 2 | $6,600.00 | |
| Fujifilm Healthcare Americas Corporation | 7 | $4,898.19 | |
| Ovesco Endoscopy USA, INC. | 1 | $2,450.00 | |
| Olympus America INC. | 7 | $2,416.44 | |
| Boston Scientific Corporation | 14 | $2,137.00 | |
| Applied Medical Resources Corporation | 1 | $1,125.00 | |
| Cook Medical LLC | 11 | $1,039.00 | |
| Olympus Medical Systems Corporation | 2 | $922.50 | |
| Conmed Corporation | 4 | $170.48 | |
| Erbe USA INC | 1 | $166.65 | |
| US Endoscopy | 1 | $150.00 | |
| Medtronic, INC. | 5 | $139.01 | |
| Phathom Pharmaceuticals, INC. | 1 | $123.86 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
412
Patients
231
Total drug cost
$42,722
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 131 | 43 | $3,498 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 76 | 69 | $1,316 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 59 | 58 | $1,310 |
| Pantoprazole Sodium | Generic | 45 | 15 | $1,809 |
| Sucralfate | Generic | 31 | 18 | $2,280 |
| Ciprofloxacin Hcl | Generic | 16 | 15 | $57 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 15 | 13 | $1,065 |
| Creon (Lipase/Protease/Amylase) | Brand | 14 | 0 | $26,639 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 14 | 0 | $4,506 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 11 | 0 | $243 |
Frequently asked questions
What is Dr. Jason Samarasena's medical specialty?
Dr. Jason Samarasena practices Gastroenterology Physician in Orange, CA.
Where does Dr. Jason Samarasena practice?
Dr. Jason Samarasena practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7144566693.
What is Dr. Jason Samarasena's NPI?
Dr. Jason Samarasena's National Provider Identifier (NPI) is 1629253364, issued by NPPES.
Does Dr. Jason Samarasena accept Medicare assignment?
Yes. Dr. Jason Samarasena accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Samarasena commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43259); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.