Internal Medicine, Gastroenterology · New Haven, CT
NPI
1467540401
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
2
Medicare group memberships
Hospitals
1
Hospital affiliations
20 York St
New Haven, CT, 06510
Phone (203) 785-4138
Groups this clinician bills Medicare through
Medicare paid, 2024
$30K
249 services
Medicare patients, 2024
117
Average age 73
Drug cost, 2024
$106K
416 prescriptions
Company payments, 2025
$67.46
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Chul S Hyun was code 99214 (office e&m - established), 70 times for 64 patients. In total Chul S Hyun billed 249 services in 14 codes, and Medicare paid $30K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-06-12.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 70 | 64 | $91.73 | $6,421 |
| 43239 Upper GI Endoscopy | Facility | 56 | 55 | $113.78 | $6,372 |
| 99204 Office E&M - New | Office | 31 | 31 | $117.51 | $3,643 |
| G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 20 | 20 | $186.21 | $3,724 |
| 99213 Office E&M - Established | Office | 17 | 16 | $70.52 | $1,199 |
| 45385 Colonoscopy - Lesion Removal | Facility | 15 | 15 | $222.32 | $3,335 |
| 44361 Digestive/Gastrointestinal | Facility | 14 | 13 | $135.33 | $1,895 |
By year: 2022 $37K for 325 services; 2023 $36K for 311 services; 2024 $30K for 249 services.
Medicare prescription drug claims, 2024
In 2024, the drug Chul S Hyun prescribed most often to Medicare patients was Pantoprazole Sodium, with 120 prescriptions and refills. In total Chul S Hyun wrote 416 Medicare prescriptions that cost $106K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Pantoprazole Sodium Generic | 120 | 169 | 50 | $867 |
| Tenofovir Disoproxil Fumarate Generic | 88 | 140 | 18 | $23K |
| Gavilyte-C Peg3350/Sod Sulf,bicarb,cl/Kcl | 64 | 64 | 64 | $941 |
| Vemlidy Tenofovir Alafenamide | 44 | 52 | Under 11 | $73K |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | 26 | 26 | 26 | $401 |
Brand drugs: 48 claims; generic drugs: 368 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Chul S Hyun $67.46 ($67.46 in general payments such as food, travel and fees) from 2 companies. The largest payer was Abbvie Inc. with $53.88.
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.