STEPHEN HUANG (M.D.) – Hematology & Oncology Physician, NPI 1124089685
Hematology & Oncology Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
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Provider Addresses for STEPHEN HUANG (M.D.)
PO BOX 31309
LOS ANGELES, CA 900310309
Phone: (626) 568-1622
Type: Mailing
Studebaker Road, Cerritos, Los Angeles County, California, 90650, United States
CERRITOS, CA 907032671
Phone: (562) 735-3226
Fax: (562) 869-1281
Type: Mailing
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
625 S FAIR OAKS AVE STE 400
PASADENA, CA 911052684
Phone: (626) 568-1622
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 19 Open Payments records for all available years, with a total value of $1,136.
Total Amount is formed as General ($1,136) + Research ($0) + Ownership ($0) = $1,136.
Last reported payment date: 2024-10-28 • Largest payer in this snapshot: Janssen Biotech, Inc. ($152).
Total Amount
$1,136
General + Research + Ownership
Payments
19
Total payment records
General Amount
$1,136
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-28
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $152 |
| ABBVIE INC. | $147 |
| Incyte Corporation | $140 |
| Mirati Therapeutics, Inc. | $134 |
| Karyopharm Therapeutics Inc. | $128 |
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: 2011-12-20
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 |
|---|---|---|---|---|
| I20111220000567 | 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 | 563 | 212 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 257 | 168 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 110 | 72 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 90031)
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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 | 55 | 15 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| U R O L O G Y | CA | |
| Diagnostic Radiology | NY | |
| Diagnostic Radiology | CA | |
| - | CA | |
| - | CA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| General Surgery | CA | |
| Certified Registered Nurse Anesthetist (Crna) | CA | |
| - | CA |
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