KAI Y. HSU (MD) – Emergency Medicine Physician, NPI 1124035407
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,266 EMERGENCY MEDICINE in IN
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Provider Addresses for KAI Y. HSU (MD)
Oak Brook Post Office, 1314, Kensington Road, Oak Brook, DuPage County, Illinois, 60523, United States
OAK BROOK, IL 605225168
Phone: (630) 734-0200
Type: Mailing
Saint Catherine Hospital, 4321, Fir Street, Indiana Harbor, East Chicago, Lake County, Indiana, 46312, United States
EAST CHICAGO, IN 463123049
Phone: (219) 392-1700
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $88.
Total Amount is formed as General ($88) + Research ($0) + Ownership ($0) = $88.
Last reported payment date: 2024-10-22 • Largest payer in this snapshot: ABBVIE INC. ($67).
Total Amount
$88
General + Research + Ownership
Payments
4
Total payment records
General Amount
$88
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $67 |
| Merck Sharp & Dohme LLC | $20 |
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: 2011-01-25
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 |
|---|---|---|---|---|
| I20110125000474 | I | Emergency Medicine | IN | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 152 | 135 | $0 |
| 99291 | Critical care, first 30-74 minutes | 76 | 75 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 33 | 32 | $0 |
| 99292 | Critical care, each additional 30 minutes | 14 | 13 | $0 |
Insurance plans in this area (ZIP 60522)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | MI | |
| Physician Assistant | MI | |
| Emergency Medicine | WI | |
| Emergency Medicine | NH | |
| Family Practice, Emergency Medicine | NC | |
| Physician Assistant | OR | |
| Emergency Medicine | IL | |
| Emergency Medicine | IN | |
| Emergency Medicine | TN | |
| - | OR |
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