Internal Medicine, Rheumatology · New York, NY
NPI
1801879119
Since 2005
Specialty
Internal Medicine, Rheumatology
Code 207RR0500X
Group practices
2
Medicare group memberships
Hospitals
0
Hospital affiliations
41 Elizabeth Street, Suite 203
New York, NY, 10013
Phone (212) 334-9591
Groups this clinician bills Medicare through
Medicare paid, 2024
$56K
4,855 services
Medicare patients, 2024
178
Average age 75
Drug cost, 2024
$10.5M
18,513 prescriptions
Company payments, 2025
$4,456
From 14 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Ya Ju Chang was code 99213 (office e&m - established), 231 times for 123 patients. In total Ya Ju Chang billed 4,855 services in 10 codes, and Medicare paid $56K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2025-04-15.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 231 | 123 | $78.84 | $18K |
| 99214 Office E&M - Established | Office | 228 | 138 | $111.20 | $25K |
| 36415 Venipuncture Blood Collection | Office | 135 | 94 | $8.65 | $1,168 |
| J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Office | 104 | 18 | $0.79 | $82.44 |
| 20610 Joint Injection | Office | 57 | 21 | $58.53 | $3,336 |
| 99204 Office E&M - New | Office | 42 | 42 | $139.43 | $5,856 |
| 96372 Injection Administration | Office | 22 | 15 | $12.74 | $280 |
By year: 2022 $72K for 1,035 services; 2023 $62K for 1,920 services; 2024 $56K for 4,855 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 135 | 94 | $8.65 | $1,168 |
Medicare prescription drug claims, 2024
In 2024, the drug Ya Ju Chang prescribed most often to Medicare patients was Hydroxychloroquine Sulfate, with 3,284 prescriptions and refills. In total Ya Ju Chang wrote 18,513 Medicare prescriptions that cost $10.5M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Hydroxychloroquine Sulfate Generic | 3,284 | 3,855 | 460 | $44K |
| Gabapentin Generic | 1,848 | 2,093 | 366 | $19K |
| Sulfasalazine Generic | 1,563 | 1,789 | 220 | $23K |
| Methotrexate Methotrexate Sodium | 1,300 | 1,664 | 180 | $21K |
| Prednisone Generic | 1,226 | 1,335 | 323 | $4,516 |
| Famotidine Generic | 1,150 | 1,268 | 252 | $10K |
| Diclofenac Sodium Generic | 708 | 921 | 239 | $62K |
| Diclofenac Epolamine Generic | 571 | 625 | 99 | $418K |
| Leflunomide Generic | 555 | 689 | 83 | $21K |
| Folic Acid Generic | 429 | 588 | 76 | $898 |
| Colchicine Generic | 421 | 505 | 68 | $13K |
| Sulfasalazine Dr Sulfasalazine | 406 | 475 | 59 | $10K |
| Meloxicam Generic | 379 | 394 | 139 | $1,223 |
| Pregabalin Generic | 340 | 348 | 51 | $10K |
| Alendronate Sodium Generic | 323 | 375 | 62 | $1,109 |
Brand drugs: 4,178 claims; generic drugs: 14,302 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Ya Ju Chang $4,456 ($4,456 in general payments such as food, travel and fees) from 14 companies. The largest payer was AstraZeneca Pharmaceuticals LP with $644.
| Company | Payments | Amount |
|---|---|---|
| AstraZeneca Pharmaceuticals LP AZN | 16 | $644 |
| Amgen Inc. AMGN | 22 | $550 |
| UCB, Inc. UCB.BR | 25 | $514 |
| Pfizer Inc. PFE | 28 | $493 |
| Abbvie Inc. ABBV | 23 | $479 |
| Janssen Biotech, Inc. JNJ | 22 | $458 |
| Novartis Pharmaceuticals Corporation NVS | 19 | $442 |
| Lilly USA, LLC LLY | 12 | $262 |
| Aurinia Pharma U.S., Inc. AUPH | 8 | $197 |
| GlaxoSmithKline, LLC. GSK | 7 | $159 |
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.