Internal Medicine, Gastroenterology · Columbia, SC
NPI
1356300792
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
1070 Wildewood Ctr Dr
Columbia, SC, 29229
Phone (803) 788-1100
Groups this clinician bills Medicare through
Medicare paid, 2024
$161K
1,771 services
Medicare patients, 2024
425
Average age 72
Drug cost, 2024
$305K
1,886 prescriptions
Company payments, 2025
$31
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Siva K Chockalingam was code 99214 (office e&m - established), 1,055 times for 364 patients. In total Siva K Chockalingam billed 1,771 services in 22 codes, and Medicare paid $161K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-12-19.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 1,055 | 364 | $95.97 | $101K |
| 99213 Office E&M - Established | Office | 126 | 114 | $42.41 | $5,343 |
| 45380 Lower GI Endoscopy - Other | Facility | 123 | 121 | $77.12 | $9,485 |
| 43239 Upper GI Endoscopy | Facility | 109 | 97 | $87.83 | $9,573 |
| 45385 Colonoscopy - Lesion Removal | Facility | 79 | 79 | $194.31 | $15K |
| 93000 Electrocardiogram | Office | 56 | 56 | $9.73 | $545 |
| 99204 Office E&M - New | Office | 54 | 54 | $112.55 | $6,078 |
| 99203 Office E&M - New | Office | 39 | 39 | $65.62 | $2,559 |
| 43450 Digestive/Gastrointestinal | Facility | 32 | 29 | $31.53 | $1,009 |
| 36415 Venipuncture Blood Collection | Office | 24 | 19 | $8.65 | $208 |
| 45378 Lower GI Endoscopy - Other | Facility | 19 | 19 | $118.59 | $2,253 |
| 46930 Digestive/Gastrointestinal | Office | 15 | 15 | $168.22 | $2,523 |
| 43251 Upper GI Endoscopy | Facility | 15 | 15 | $148.21 | $2,223 |
By year: 2022 $171K for 2,005 services; 2023 $162K for 1,851 services; 2024 $161K for 1,771 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 24 | 19 | $8.65 | $208 |
Medicare prescription drug claims, 2024
In 2024, the drug Siva K Chockalingam prescribed most often to Medicare patients was Famotidine, with 529 prescriptions and refills. In total Siva K Chockalingam wrote 1,886 Medicare prescriptions that cost $305K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Famotidine Generic | 529 | 1,110 | 162 | $11K |
| Pantoprazole Sodium Generic | 367 | 775 | 116 | $3,517 |
| Sucralfate Generic | 192 | 368 | 73 | $9,428 |
| Linzess Linaclotide | 160 | 246 | 45 | $132K |
| Erythromycin Erythromycin Base | 77 | 104 | 21 | $18K |
| Omeprazole Generic | 67 | 142 | 24 | $735 |
| Misoprostol Generic | 61 | 72 | 14 | $1,979 |
| Creon Lipase/Protease/Amylase | 50 | 74 | 13 | $69K |
| Lubiprostone Generic | 42 | 96 | 17 | $11K |
| Mesalamine Er Mesalamine | 42 | 52 | Under 11 | $7,821 |
| Esomeprazole Magnesium Generic | 37 | 79 | 11 | $1,189 |
| Mesalamine Generic | 32 | 61 | Under 11 | $17K |
| Dicyclomine Hcl Generic | 27 | 33 | Under 11 | $227 |
| Colesevelam Hcl Generic | 21 | 27 | Under 11 | $1,759 |
| Metronidazole Generic | 20 | 20 | 18 | $97.61 |
Brand drugs: 335 claims; generic drugs: 1,551 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Siva K Chockalingam $31 ($31 in general payments such as food, travel and fees) from 1 company. The largest payer was Pfizer Inc. with $31.
| Company | Payments | Amount |
|---|---|---|
| Pfizer Inc. PFE | 1 | $31 |
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.