Internal Medicine, Hematology & Oncology · Torrance, CA
NPI
1053574608
Since 2008
Specialty
Internal Medicine, Hematology & Oncology
Code 207RH0003X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
23600 Telo Ave Ste 260
Torrance, CA, 90505
Phone (424) 435-1037
Groups this clinician bills Medicare through
Medicare paid, 2024
$76K
2,768 services
Medicare patients, 2024
175
Average age 72
Drug cost, 2024
$3.5M
1,453 prescriptions
Company payments, 2025
$8,067
From 57 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Michael S Chung was code 99233 (hospital e&m - subsequent), 119 times for 45 patients. In total Michael S Chung billed 2,768 services in 52 codes, and Medicare paid $76K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-03-01.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99233 Hospital E&M - Subsequent | Facility | 119 | 45 | $99.93 | $12K |
| 99232 Hospital E&M - Subsequent | Facility | 80 | 29 | $66.51 | $5,321 |
| 99213 Office E&M - Established | Office | 70 | 48 | $69.88 | $4,891 |
| 99222 Hospital E&M - Initial | Facility | 37 | 35 | $109.83 | $4,064 |
| 99223 Hospital E&M - Initial | Facility | 37 | 37 | $145.64 | $5,389 |
| 99214 Office E&M - Established | Office | 35 | 29 | $91.03 | $3,186 |
| 99204 Office E&M - New | Office | 23 | 23 | $132.41 | $3,046 |
| M0010 Enhancing oncology model (eom) monthly enhanced oncology services (meos) payment for eom enhanced services | Office | 20 | 11 | $93.59 | $1,872 |
| 99212 Office E&M - Established | Office | 15 | 12 | $47.17 | $708 |
| 99203 Office E&M - New | Office | 12 | 12 | $81.78 | $981 |
By year: 2022 $482K for 18,703 services; 2023 $458K for 22,256 services; 2024 $76K for 2,768 services.
Lab tests billed to Medicare, 2023
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 71 | 45 | $7.26 | $516 |
| 85025 Blood Count | 12 | 11 | $7.61 | $91.32 |
Medicare prescription drug claims, 2024
In 2024, the drug Michael S Chung prescribed most often to Medicare patients was Anastrozole, with 133 prescriptions and refills. In total Michael S Chung wrote 1,453 Medicare prescriptions that cost $3.5M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Anastrozole Generic | 133 | 315 | 47 | $2,433 |
| Prednisone Generic | 80 | 80 | 21 | $283 |
| Dexamethasone Sodium Phosphate Generic | 78 | 78 | 27 | $283 |
| Ondansetron Hcl Ondansetron Hcl/Pf | 77 | 77 | 27 | $116 |
| Famotidine Famotidine/Pf | 70 | 70 | 20 | $60.16 |
| Letrozole Generic | 65 | 146 | 25 | $1,292 |
| Diphenhydramine Hcl Generic | 65 | 65 | 18 | $115 |
| Abiraterone Acetate Generic | 61 | 61 | 16 | $105K |
| Hydroxyurea Generic | 57 | 139 | 16 | $1,579 |
| Eliquis Apixaban | 55 | 82 | 22 | $46K |
| Carboplatin Generic | 41 | 41 | 11 | $1,563 |
| Orgovyx Relugolix | 30 | 30 | Under 11 | $80K |
| Paclitaxel Generic | 29 | 29 | Under 11 | $1,720 |
| Alendronate Sodium Generic | 29 | 54 | Under 11 | $83.26 |
| Ondansetron Hcl Generic | 28 | 28 | 23 | $224 |
Brand drugs: 397 claims; generic drugs: 1,056 claims; opioid claims: 17.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Michael S Chung $8,067 ($8,067 in general payments such as food, travel and fees) from 57 companies. The largest payer was AstraZeneca Pharmaceuticals LP with $604.
| Company | Payments | Amount |
|---|---|---|
| AstraZeneca Pharmaceuticals LP AZN | 23 | $604 |
| Pfizer Inc. PFE | 23 | $520 |
| Novartis Pharmaceuticals Corporation NVS | 26 | $515 |
| Janssen Biotech, Inc. JNJ | 20 | $467 |
| Celgene Corporation BMY | 38 | $451 |
| Merck Sharp & Dohme LLC MRK | 11 | $311 |
| Incyte Corporation INCY | 15 | $298 |
| Abbvie Inc. ABBV | 10 | $263 |
| Astellas Pharma US Inc 4503.T | 11 | $247 |
| Array Biopharma Inc PFE | 12 | $244 |
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.