Internal Medicine, Gastroenterology · Brooklyn, NY
NPI
1265506828
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
4
Medicare group memberships
Hospitals
1
Hospital affiliations
2511 Ocean Ave, Suite 104
Brooklyn, NY, 11229
Phone (718) 615-0400
Groups this clinician bills Medicare through
Medicare paid, 2024
$129K
1,037 services
Medicare patients, 2024
399
Average age 73
Drug cost, 2024
$744K
1,670 prescriptions
Company payments, 2025
$6,112
From 18 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Kadirawelpillai Iswara was code 99213 (office e&m - established), 283 times for 201 patients. In total Kadirawelpillai Iswara billed 1,037 services in 26 codes, and Medicare paid $129K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2008-07-08.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 283 | 201 | $80.64 | $23K |
| 99214 Office E&M - Established | Office | 152 | 113 | $114.69 | $17K |
| 43239 Upper GI Endoscopy | Facility | 136 | 130 | $104.78 | $14K |
| 99203 Office E&M - New | Office | 119 | 119 | $100.09 | $12K |
| 45385 Colonoscopy - Lesion Removal | Facility | 73 | 73 | $235.46 | $17K |
| 45380 Lower GI Endoscopy - Other | Facility | 68 | 67 | $120.30 | $8,180 |
| 99204 Office E&M - New | Office | 52 | 52 | $137.01 | $7,125 |
| G0105 Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 37 | 37 | $216.77 | $8,021 |
| 99443 Telephone Services | Office | 30 | 30 | $117.21 | $3,516 |
| G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 29 | 29 | $202.82 | $5,882 |
| 45378 Lower GI Endoscopy - Other | Facility | 16 | 16 | $173.68 | $2,779 |
By year: 2022 $141K for 1,093 services; 2023 $137K for 1,095 services; 2024 $129K for 1,037 services.
Medicare prescription drug claims, 2024
In 2024, the drug Kadirawelpillai Iswara prescribed most often to Medicare patients was Pantoprazole Sodium, with 370 prescriptions and refills. In total Kadirawelpillai Iswara wrote 1,670 Medicare prescriptions that cost $744K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Pantoprazole Sodium Generic | 370 | 838 | 140 | $4,154 |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 169 | 169 | 161 | $2,052 |
| Omeprazole Generic | 97 | 221 | 35 | $1,246 |
| Famotidine Generic | 91 | 163 | 28 | $643 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 78 | 78 | 76 | $4,254 |
| Linzess Linaclotide | 75 | 129 | 25 | $67K |
| Voquezna Vonoprazan Fumarate | 70 | 95 | 31 | $59K |
| Esomeprazole Magnesium Generic | 50 | 84 | Under 11 | $931 |
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 43 | 43 | 42 | $642 |
| Sucralfate Generic | 41 | 65 | 11 | $1,684 |
| Creon Lipase/Protease/Amylase | 40 | 76 | 11 | $189K |
| Dicyclomine Hcl Generic | 34 | 44 | Under 11 | $282 |
| Dexlansoprazole Dr Dexlansoprazole | 27 | 45 | Under 11 | $6,331 |
| Mesalamine Generic | 26 | 42 | Under 11 | $7,888 |
| Ondansetron Hcl Generic | 22 | 30 | Under 11 | $181 |
Brand drugs: - claims; generic drugs: 1,243 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Kadirawelpillai Iswara $6,112 ($6,112 in general payments such as food, travel and fees) from 18 companies. The largest payer was Phathom Pharmaceuticals, Inc. with $3,680.
| Company | Payments | Amount |
|---|---|---|
| Phathom Pharmaceuticals, Inc. PHAT | 15 | $3,680 |
| Madrigal Pharmaceuticals MDGL | 8 | $527 |
| Abbvie Inc. ABBV | 31 | $435 |
| Janssen Biotech, Inc. JNJ | 15 | $361 |
| Pfizer Inc. PFE | 20 | $353 |
| Ardelyx, Inc. ARDX | 13 | $216 |
| Takeda Pharmaceuticals U.S.A., Inc. TAK | 13 | $197 |
| Vivus LLC | 4 | $71.06 |
| Intra-Sana Laboratories | 2 | $55.76 |
| Gilead Sciences, Inc. GILD | 2 | $41 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.