Internal Medicine, Gastroenterology · Merced, CA
NPI
1447432463
Since 2007
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
386 W Olive Ave, Suite A
Merced, CA, 95348
Phone (209) 724-9900
Groups this clinician bills Medicare through
Medicare paid, 2024
$283K
2,907 services
Medicare patients, 2024
1,444
Average age 71
Drug cost, 2024
$621K
2,617 prescriptions
Company payments, 2025
$1,640
From 14 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Sivakumar R Munnangi was code 99213 (office e&m - established), 809 times for 672 patients. In total Sivakumar R Munnangi billed 2,907 services in 35 codes, and Medicare paid $283K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2015-08-27.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 809 | 672 | $62.27 | $50K |
| 99204 Office E&M - New | Office | 621 | 621 | $102.15 | $63K |
| 43239 Upper GI Endoscopy | Facility | 304 | 296 | $68.85 | $21K |
| 99214 Office E&M - Established | Office | 286 | 265 | $87.28 | $25K |
| 45385 Colonoscopy - Lesion Removal | Facility | 195 | 195 | $189.07 | $37K |
| 45378 Lower GI Endoscopy - Other | Facility | 138 | 136 | $122.15 | $17K |
| 45380 Lower GI Endoscopy - Other | Facility | 129 | 128 | $98.09 | $13K |
| G0105 Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 119 | 116 | $158.47 | $19K |
| G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 78 | 76 | $158.90 | $12K |
| 76981 Ultrasound - Nonspecific | Office | 61 | 56 | $82.13 | $5,010 |
| 43248 Upper GI Endoscopy | Facility | 32 | 27 | $109.64 | $3,508 |
| 43235 Upper GI Endoscopy | Facility | 28 | 27 | $69.14 | $1,936 |
| 45330 Lower GI Endoscopy - Other | Facility | 15 | 15 | $35.03 | $525 |
| 43252 Upper GI Endoscopy | Facility | 15 | 15 | $111.60 | $1,674 |
| 99203 Office E&M - New | Office | 14 | 14 | $69.18 | $969 |
By year: 2022 $349K for 3,986 services; 2023 $372K for 3,924 services; 2024 $283K for 2,907 services.
Lab tests billed to Medicare, 2022
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 83013 Clinical Chemistry | 23 | 20 | $66.60 | $1,532 |
| 83014 Clinical Chemistry | 23 | 20 | $7.77 | $179 |
Medicare prescription drug claims, 2024
In 2024, the drug Sivakumar R Munnangi prescribed most often to Medicare patients was Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl), with 508 prescriptions and refills. In total Sivakumar R Munnangi wrote 2,617 Medicare prescriptions that cost $621K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 508 | 509 | 479 | $8,004 |
| Omeprazole Generic | 335 | 793 | 159 | $3,778 |
| Gavilyte-C Peg3350/Sod Sulf,bicarb,cl/Kcl | 282 | 282 | 263 | $5,034 |
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 218 | 218 | 204 | $3,462 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 183 | 183 | 177 | $12K |
| Famotidine Generic | 124 | 326 | 56 | $1,643 |
| Dicyclomine Hcl Generic | 115 | 204 | 47 | $2,616 |
| Pantoprazole Sodium Generic | 80 | 198 | 29 | $1,114 |
| Sucralfate Generic | 46 | 60 | 27 | $1,110 |
| Lactulose Generic | 46 | 82 | 27 | $2,524 |
| Linzess Linaclotide | 38 | 86 | 23 | $46K |
| Amoxicillin Generic | 35 | 35 | 33 | $215 |
| Clarithromycin Generic | 35 | 35 | 35 | $1,141 |
| Sulfasalazine Generic | 31 | 76 | 14 | $1,295 |
| Sutab Sod Sulf/Pot Chloride/Mag Sulf | 30 | 30 | 29 | $4,834 |
Brand drugs: 591 claims; generic drugs: 2,026 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Sivakumar R Munnangi $1,640 ($1,640 in general payments such as food, travel and fees) from 14 companies. The largest payer was Abbvie Inc. with $398.
| Company | Payments | Amount |
|---|---|---|
| Abbvie Inc. ABBV | 19 | $398 |
| Janssen Biotech, Inc. JNJ | 13 | $327 |
| Gilead Sciences, Inc. GILD | 7 | $260 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC BHC | 20 | $246 |
| Braintree Laboratories, Inc. | 3 | $85.49 |
| Madrigal Pharmaceuticals MDGL | 4 | $75.98 |
| Ardelyx, Inc. ARDX | 2 | $43.15 |
| Intercept Pharmaceuticals, Inc. | 2 | $41.19 |
| Celltrion USA Inc. 068270.KS | 2 | $39.74 |
| Mauna Kea Technologies, Inc. ALMKT.PA | 1 | $31.51 |
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.