Internal Medicine, Gastroenterology · Fremont, CA
NPI
1881628451
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
2557 Mowry Ave, Suite 12
Fremont, CA, 94538
Phone (510) 793-3722
Groups this clinician bills Medicare through
Medicare paid, 2024
$101K
852 services
Medicare patients, 2024
449
Average age 74
Drug cost, 2024
$682K
1,345 prescriptions
Company payments, 2025
$91.85
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Annamalai Veerappan was code 99214 (office e&m - established), 227 times for 167 patients. In total Annamalai Veerappan billed 852 services in 33 codes, and Medicare paid $101K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2008-03-28.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 227 | 167 | $116.90 | $27K |
| 99213 Office E&M - Established | Office | 196 | 159 | $76.95 | $15K |
| 45385 Colonoscopy - Lesion Removal | Facility | 94 | 94 | $199.81 | $19K |
| 99204 Office E&M - New | Office | 83 | 83 | $134.03 | $11K |
| 43239 Upper GI Endoscopy | Facility | 53 | 53 | $82.62 | $4,379 |
| 99203 Office E&M - New | Office | 52 | 52 | $98.83 | $5,139 |
| 45378 Lower GI Endoscopy - Other | Facility | 39 | 37 | $141.39 | $5,514 |
| 45380 Lower GI Endoscopy - Other | Facility | 23 | 23 | $105.49 | $2,426 |
| 99212 Office E&M - Established | Office | 17 | 17 | $45.90 | $780 |
| 45390 Lower GI Endoscopy - Other | Facility | 12 | 12 | $280.62 | $3,367 |
By year: 2022 $159K for 1,494 services; 2023 $159K for 1,487 services; 2024 $101K for 852 services.
Medicare prescription drug claims, 2024
In 2024, the drug Annamalai Veerappan prescribed most often to Medicare patients was Pantoprazole Sodium, with 425 prescriptions and refills. In total Annamalai Veerappan wrote 1,345 Medicare prescriptions that cost $682K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Pantoprazole Sodium Generic | 425 | 646 | 128 | $3,620 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 121 | 121 | 119 | $2,542 |
| Omeprazole Generic | 111 | 205 | 36 | $1,205 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 75 | 75 | 72 | $4,634 |
| Linzess Linaclotide | 62 | 72 | 14 | $37K |
| Vemlidy Tenofovir Alafenamide | 52 | 52 | Under 11 | $75K |
| Entecavir Generic | 44 | 76 | Under 11 | $6,727 |
| Ursodiol Generic | 33 | 94 | Under 11 | $7,253 |
| Humira(Cf) Pen Adalimumab | 25 | 25 | Under 11 | $168K |
| Famotidine Generic | 24 | 52 | 13 | $257 |
| Mesalamine Generic | 23 | 37 | Under 11 | $6,627 |
| Ondansetron Hcl Generic | 23 | 25 | 18 | $257 |
| Xifaxan Rifaximin | 23 | 23 | Under 11 | $55K |
| Cholestyramine Cholestyramine (With Sugar) | 18 | 20 | Under 11 | $970 |
| Creon Lipase/Protease/Amylase | 17 | 33 | Under 11 | $81K |
Brand drugs: 315 claims; generic drugs: 1,030 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Annamalai Veerappan $91.85 ($91.85 in general payments such as food, travel and fees) from 1 company. The largest payer was Intercept Pharmaceuticals, Inc. with $91.85.
| Company | Payments | Amount |
|---|---|---|
| Intercept Pharmaceuticals, Inc. | 4 | $91.85 |
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.