Allergy and Immunology · Aurora, IL
NPI
1316988850
Since 2006
Specialty
Allergy and Immunology
Code 207K00000X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
2285 Sequoia Dr
Aurora, IL, 60506
Phone (630) 859-6700
Groups this clinician bills Medicare through
Medicare paid, 2024
$42K
4,539 services
Medicare patients, 2024
171
Average age 74
Drug cost, 2024
$911K
1,750 prescriptions
Company payments, 2025
$30.54
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Titus Chang was code 95004 (test - miscellaneous), 548 times for 18 patients. In total Titus Chang billed 4,539 services in 31 codes, and Medicare paid $42K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2022-01-05.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 95004 Test - Miscellaneous | Office | 548 | 18 | $3.02 | $1,656 |
| 99214 Office E&M - Established | Office | 169 | 126 | $96.22 | $16K |
| 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 | 113 | 94 | $12.72 | $1,437 |
| 36415 Venipuncture Blood Collection | Office | 80 | 61 | $8.54 | $683 |
| 94010 Pulmonary Function Testing | Office | 78 | 68 | $20.55 | $1,603 |
| 99215 Office E&M - Established | Office | 69 | 52 | $125.10 | $8,632 |
| 99205 Office E&M - New | Office | 19 | 19 | $170.06 | $3,231 |
| 99204 Office E&M - New | Office | 11 | 11 | $102.02 | $1,122 |
By year: 2022 $64K for 2,401 services; 2023 $38K for 1,640 services; 2024 $42K for 4,539 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 80 | 61 | $8.54 | $683 |
Medicare prescription drug claims, 2024
In 2024, the drug Titus Chang prescribed most often to Medicare patients was Montelukast Sodium, with 212 prescriptions and refills. In total Titus Chang wrote 1,750 Medicare prescriptions that cost $911K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Montelukast Sodium Generic | 212 | 625 | 65 | $2,229 |
| Azelastine Hcl Generic | 193 | 370 | 80 | $5,860 |
| Prednisone Generic | 116 | 116 | 64 | $255 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 114 | 244 | 30 | $152K |
| Fluticasone Propionate Generic | 110 | 266 | 46 | $1,987 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 103 | 112 | 70 | $2,960 |
| Ipratropium Bromide Generic | 83 | 98 | 34 | $2,282 |
| Breo Ellipta Fluticasone/Vilanterol | 70 | 144 | 20 | $56K |
| Levocetirizine Dihydrochloride Generic | 59 | 167 | 18 | $836 |
| Omeprazole Generic | 57 | 156 | 17 | $592 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 41 | 64 | 13 | $6,398 |
| Nucala Mepolizumab | 40 | 49 | Under 11 | $230K |
| Arnuity Ellipta Fluticasone Furoate | 40 | 74 | 16 | $20K |
| Advair Hfa Fluticasone Propion/Salmeterol | 37 | 58 | Under 11 | $21K |
| Budesonide-Formoterol Fumarate Budesonide/Formoterol Fumarate | 34 | 64 | 14 | $12K |
Brand drugs: 655 claims; generic drugs: 1,095 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Titus Chang $30.54 ($30.54 in general payments such as food, travel and fees) from 1 company. The largest payer was Pfizer Inc. with $30.54.
| Company | Payments | Amount |
|---|---|---|
| Pfizer Inc. PFE | 2 | $30.54 |
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.