DR. MICHAEL S. CHUNG (M.D.) – Hematology & Oncology Physician, NPI 1053574608
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
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Provider Addresses for DR. MICHAEL S. CHUNG (M.D.)
11480, Brookshire Avenue, Downey, Los Angeles County, California, 90241, United States
SUITE 309
DOWNEY, CA 902415018
Phone: (562) 869-1201
Fax: (562) 869-1281
Type: Location
23600 TELO AVE STE 260
TORRANCE, CA 905054037
Phone: (424) 435-1037
Fax: (424) 435-1038
Type: Mailing
Studebaker Road, Cerritos, Los Angeles County, California, 90650, United States
CERRITOS, CA 907032671
Phone: (562) 735-3226
Fax: (562) 869-1201
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 556 Open Payments records for all available years, with a total value of $12,444.
Total Amount is formed as General ($12,444) + Research ($0) + Ownership ($0) = $12,444.
Last reported payment date: 2024-12-30 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($1,073).
Total Amount
$12,444
General + Research + Ownership
Payments
556
Total payment records
General Amount
$12,444
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $1,073 |
| AstraZeneca Pharmaceuticals LP | $664 |
| PFIZER INC. | $577 |
| Merck Sharp & Dohme LLC | $345 |
| Celgene Corporation | $323 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2013-03-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20130327000288 | I | Hematology/Oncology | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 167 | 98 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 84 | 75 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 71 | 45 | $0 |
| M0010 | Enhancing oncology model (eom) monthly enhanced oncology services (meos) payment for eom enhanced services | 65 | 15 | $0 |
| 96365 | Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 64 | 23 | $0 |
Insurance plans in this area (ZIP 90241)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | CA | 96367 | Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hour | 79 | 19 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| Hematology/Oncology, Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Hematology/Oncology, Internal Medicine | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| Internal Medicine, Hematology/Oncology | CA | |
| Medical Oncology, Hematology/Oncology | CA | |
| Hematology/Oncology, Internal Medicine | CA |
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