Internal Medicine, Gastroenterology · San Antonio, TX
NPI
1538208541
Since 2007
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
6
Hospital affiliations
520 E Euclid Ave
San Antonio, TX, 78212
Phone (210) 271-0606
Groups this clinician bills Medicare through
Medicare paid, 2024
$194K
2,181 services
Medicare patients, 2024
832
Average age 74
Drug cost, 2024
$714K
2,056 prescriptions
Company payments, 2025
$820
From 8 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Antonio Serna IV was code 99232 (hospital e&m - subsequent), 555 times for 313 patients. In total Antonio Serna IV billed 2,181 services in 59 codes, and Medicare paid $194K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2008-07-15.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99232 Hospital E&M - Subsequent | Facility | 555 | 313 | $58.61 | $33K |
| 99222 Hospital E&M - Initial | Facility | 518 | 477 | $96.19 | $50K |
| 43239 Upper GI Endoscopy | Facility | 203 | 195 | $84.09 | $17K |
| 45380 Lower GI Endoscopy - Other | Facility | 91 | 91 | $125.57 | $11K |
| 99214 Office E&M - Established | Office | 90 | 77 | $91.72 | $8,255 |
| 43246 Upper GI Endoscopy | Facility | 72 | 71 | $148.29 | $11K |
| 99213 Office E&M - Established | Office | 70 | 68 | $57.63 | $4,034 |
| 43264 Upper GI Endoscopy | Facility | 46 | 46 | $195.81 | $9,007 |
| 45385 Colonoscopy - Lesion Removal | Facility | 37 | 37 | $191.14 | $7,072 |
| 43255 Upper GI Endoscopy | Facility | 33 | 29 | $144.88 | $4,781 |
| 43262 Upper GI Endoscopy | Facility | 32 | 32 | $25.34 | $811 |
| 45378 Lower GI Endoscopy - Other | Facility | 31 | 31 | $133.47 | $4,137 |
| 99204 Office E&M - New | Office | 31 | 31 | $110.86 | $3,437 |
| 43235 Upper GI Endoscopy | Facility | 23 | 21 | $84.38 | $1,941 |
| 74330 Digestive/Gastrointestinal | Facility | 23 | 23 | $20.33 | $468 |
By year: 2022 $219K for 2,487 services; 2023 $217K for 3,265 services; 2024 $194K for 2,181 services.
Medicare prescription drug claims, 2024
In 2024, the drug Antonio Serna IV prescribed most often to Medicare patients was Peg-3350 And Electrolytes (Peg3350/Sod Sulf,bicarb,cl/Kcl), with 323 prescriptions and refills. In total Antonio Serna IV wrote 2,056 Medicare prescriptions that cost $714K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 323 | 323 | 301 | $5,421 |
| Pantoprazole Sodium Generic | 259 | 520 | 101 | $2,461 |
| Linzess Linaclotide | 197 | 274 | 51 | $152K |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 164 | 164 | 157 | $2,287 |
| Omeprazole Generic | 130 | 251 | 46 | $1,594 |
| Famotidine Generic | 123 | 222 | 46 | $2,276 |
| Gavilyte-C Peg3350/Sod Sulf,bicarb,cl/Kcl | 95 | 95 | 88 | $1,597 |
| Dicyclomine Hcl Generic | 86 | 97 | 26 | $1,292 |
| Sucralfate Generic | 46 | 83 | 19 | $3,307 |
| Metoclopramide Hcl Generic | 39 | 59 | 13 | $479 |
| Colestipol Hcl Generic | 33 | 40 | Under 11 | $2,177 |
| Lubiprostone Generic | 27 | 32 | Under 11 | $2,033 |
| Trulance Plecanatide | 25 | 33 | Under 11 | $18K |
| Cholestyramine Cholestyramine (With Sugar) | 24 | 37 | Under 11 | $4,044 |
| Constulose Lactulose | 23 | 24 | 13 | $311 |
Brand drugs: 784 claims; generic drugs: 1,272 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Antonio Serna IV $820 ($820 in general payments such as food, travel and fees) from 8 companies. The largest payer was Janssen Biotech, Inc. with $318.
| Company | Payments | Amount |
|---|---|---|
| Janssen Biotech, Inc. JNJ | 18 | $318 |
| Abbvie Inc. ABBV | 19 | $280 |
| Echosens North America, Inc. | 1 | $108 |
| Lilly USA, LLC LLY | 2 | $43.14 |
| Novo Nordisk Inc NVO | 1 | $18.27 |
| Takeda Pharmaceuticals U.S.A., Inc. TAK | 1 | $17.77 |
| Gilead Sciences, Inc. GILD | 1 | $17.23 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC BHC | 1 | $17.23 |
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.