Internal Medicine, Gastroenterology · New York, NY
NPI
1255341723
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
0
Hospital affiliations
109 Lafayette St, Suite 701
New York, NY, 10013
Phone (212) 941-7856
Groups this clinician bills Medicare through
Medicare paid, 2024
$71K
1,323 services
Medicare patients, 2024
100
Average age 75
Drug cost, 2024
$1.2M
9,266 prescriptions
Company payments, 2025
$449
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Chien Chiang was code 99213 (office e&m - established), 305 times for 84 patients. In total Chien Chiang billed 1,323 services in 32 codes, and Medicare paid $71K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-07-08.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 305 | 84 | $74.48 | $23K |
| 36415 Venipuncture Blood Collection | Office | 188 | 82 | $8.65 | $1,626 |
| 93000 Electrocardiogram | Office | 80 | 77 | $11.26 | $901 |
| 94010 Pulmonary Function Testing | Office | 72 | 71 | $21.96 | $1,581 |
| 92568 Vision, Hearing, and Speech Services | Office | 70 | 70 | $11.72 | $821 |
| 92552 Vision, Hearing, and Speech Services | Office | 70 | 70 | $31.28 | $2,190 |
| 99406 Behavioral Health Services | Office | 69 | 69 | $16.23 | $1,120 |
| 82270 Immunoassay | Office | 67 | 67 | $4.29 | $287 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 63 | 63 | $144.14 | $9,081 |
| 99212 Office E&M - Established | Office | 57 | 41 | $43.52 | $2,480 |
| 99214 Office E&M - Established | Office | 47 | 38 | $103.96 | $4,886 |
| 96374 Injection Administration | Office | 42 | 31 | $33.26 | $1,397 |
| 90471 Vaccine Administration | Office | 38 | 27 | $17.57 | $668 |
| 90658 Vaccine Product | Office | 27 | 27 | $21.42 | $578 |
| 43239 Upper GI Endoscopy | Office | 25 | 24 | $321.70 | $8,043 |
By year: 2022 $78K for 1,307 services; 2023 $79K for 1,274 services; 2024 $71K for 1,323 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 188 | 82 | $8.65 | $1,626 |
| 82270 Immunoassay | 67 | 67 | $4.29 | $287 |
Medicare prescription drug claims, 2024
In 2024, the drug Chien Chiang prescribed most often to Medicare patients was Atorvastatin Calcium, with 935 prescriptions and refills. In total Chien Chiang wrote 9,266 Medicare prescriptions that cost $1.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 935 | 1,548 | 159 | $5,484 |
| Amlodipine Besylate Generic | 752 | 1,166 | 111 | $3,298 |
| Omeprazole Generic | 560 | 701 | 125 | $5,272 |
| Vemlidy Tenofovir Alafenamide | 344 | 344 | 34 | $488K |
| Pantoprazole Sodium Generic | 303 | 424 | 95 | $1,668 |
| Metformin Hcl Generic | 278 | 431 | 41 | $1,260 |
| Olmesartan Medoxomil Generic | 224 | 358 | 33 | $3,434 |
| Glipizide Er Glipizide | 207 | 291 | 31 | $1,157 |
| Vascepa Icosapent Ethyl | 193 | 297 | 34 | $43K |
| Simvastatin Generic | 178 | 318 | 30 | $867 |
| Entecavir Generic | 172 | 254 | 22 | $40K |
| Azithromycin Generic | 164 | 164 | 115 | $448 |
| Diclofenac Epolamine Generic | 142 | 162 | 20 | $100K |
| Tamsulosin Hcl Generic | 138 | 211 | 26 | $707 |
| Ammonium Lactate Generic | 136 | 142 | 27 | $3,783 |
Brand drugs: 1,432 claims; generic drugs: 7,733 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Chien Chiang $449 ($449 in general payments such as food, travel and fees) from 1 company. The largest payer was Gilead Sciences, Inc. with $449.
| Company | Payments | Amount |
|---|---|---|
| Gilead Sciences, Inc. GILD | 15 | $449 |
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.