Internal Medicine, Gastroenterology · Centralia, IL
NPI
1346251071
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
2
Medicare group memberships
Hospitals
2
Hospital affiliations
1054 M L King Dr, Suite 120
Centralia, IL, 62801
Phone (618) 532-1688
Groups this clinician bills Medicare through
Medicare paid, 2024
$173K
2,857 services
Medicare patients, 2024
670
Average age 73
Drug cost, 2024
$285K
2,398 prescriptions
Company payments, 2025
$834
From 9 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Stephen T Ang was code G2211 (visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's), 1,039 times for 531 patients. In total Stephen T Ang billed 2,857 services in 23 codes, and Medicare paid $173K.
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-07-08.
| Code | Setting | Services | Patients | Paid per service | Medicare paid |
|---|---|---|---|---|---|
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 1,039 | 531 | $12.47 | $13K |
| 99213 Office E&M - Established | Office | 710 | 416 | $62.64 | $44K |
| 99214 Office E&M - Established | Office | 248 | 212 | $88.29 | $22K |
| 99204 Office E&M - New | Office | 181 | 181 | $109.70 | $20K |
| 43239 Upper GI Endoscopy | Facility | 109 | 108 | $84.85 | $9,249 |
| 99203 Office E&M - New | Office | 86 | 86 | $65.28 | $5,614 |
| G0105 Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 84 | 84 | $175.25 | $15K |
| 45385 Colonoscopy - Lesion Removal | Facility | 77 | 76 | $190.52 | $15K |
| 43235 Upper GI Endoscopy | Facility | 47 | 47 | $76.77 | $3,608 |
| 99222 Hospital E&M - Initial | Facility | 35 | 34 | $98.01 | $3,430 |
| 45378 Lower GI Endoscopy - Other | Facility | 32 | 31 | $142.05 | $4,546 |
| G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 31 | 31 | $178.00 | $5,518 |
| 99232 Hospital E&M - Subsequent | Facility | 30 | 16 | $60.65 | $1,820 |
| 45384 Colonoscopy - Lesion Removal | Facility | 30 | 30 | $144.82 | $4,345 |
| 99231 Hospital E&M - Subsequent | Facility | 22 | 19 | $34.81 | $766 |
By year: 2022 $166K for 1,881 services; 2023 $166K for 1,779 services; 2024 $173K for 2,857 services.
Medicare prescription drug claims, 2024
In 2024, the drug Stephen T Ang prescribed most often to Medicare patients was Pantoprazole Sodium, with 731 prescriptions and refills. In total Stephen T Ang wrote 2,398 Medicare prescriptions that cost $285K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Pantoprazole Sodium Generic | 731 | 1,695 | 241 | $6,766 |
| Omeprazole Generic | 428 | 1,040 | 122 | $4,911 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 176 | 187 | 173 | $11K |
| Linzess Linaclotide | 144 | 237 | 44 | $129K |
| Colestipol Hcl Generic | 138 | 322 | 41 | $7,769 |
| Cholestyramine Cholestyramine (With Sugar) | 137 | 225 | 55 | $10K |
| Glycopyrrolate Generic | 88 | 226 | 35 | $1,399 |
| Esomeprazole Magnesium Generic | 53 | 138 | 17 | $2,911 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 50 | 50 | 49 | $1,037 |
| Dicyclomine Hcl Generic | 49 | 69 | 18 | $572 |
| Mesalamine Generic | 47 | 136 | 14 | $21K |
| Famotidine Generic | 43 | 109 | 21 | $588 |
| Peg-3350 And Electrolytes Peg3350/Sod Sulf,bicarb,cl/Kcl | 30 | 30 | 27 | $715 |
| Sutab Sod Sulf/Pot Chloride/Mag Sulf | 28 | 28 | 28 | $4,563 |
| Sulfasalazine Generic | 26 | 52 | Under 11 | $838 |
Brand drugs: - claims; generic drugs: 1,974 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Stephen T Ang $834 ($834 in general payments such as food, travel and fees) from 9 companies. The largest payer was Ardelyx, Inc. with $307.
| Company | Payments | Amount |
|---|---|---|
| Ardelyx, Inc. ARDX | 21 | $307 |
| Regeneron Healthcare Solutions, Inc. REGN | 8 | $159 |
| Genzyme Corporation SNY | 6 | $153 |
| Pfizer Inc. PFE | 5 | $82.2 |
| Takeda Pharmaceuticals U.S.A., Inc. TAK | 3 | $54.23 |
| Blueprint Medicines Corporation SNY | 1 | $22.44 |
| Novo Nordisk Inc NVO | 1 | $20.53 |
| Ironwood Pharmaceuticals, Inc IRWD | 1 | $20.08 |
| Pharmacosmos Therapeutics Inc. | 1 | $15.54 |
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.