CHUNG-YU HSIAO (M.D.) – Emergency Medicine Physician, NPI 1275796484
Emergency Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for CHUNG-YU HSIAO (M.D.)
Saint Mary's Hospital, 56, Franklin Street, Exchange Place, Waterbury, New Haven County, Connecticut, 06706, United States
WATERBURY, CT 067061253
Phone: (203) 709-6004
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $27.
Total Amount is formed as General ($27) + Research ($0) + Ownership ($0) = $27.
Last reported payment date: 2023-09-21 • Largest payer in this snapshot: ABBVIE INC. ($27).
Total Amount
$27
General + Research + Ownership
Payments
1
Total payment records
General Amount
$27
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $27 |
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: 2011-08-31
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 |
|---|---|---|---|---|
| I20110831000196 | I | Emergency Medicine | CT | 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 | 157 | 152 | $0 |
| 99291 | Critical care, first 30-74 minutes | 54 | 54 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 44 | 37 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 33 | 31 | $0 |
Insurance plans in this area (ZIP 06706)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | CT | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 323 | 305 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CT | |
| - | CT | |
| - | CT |
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