DR. WILLIAM N. PAIK (M.D.) – Diagnostic Radiology Physician, NPI 1265584825
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
185 DIAGNOSTIC RADIOLOGY in HI
Provider Addresses for DR. WILLIAM N. PAIK (M.D.)
1388 ALA MOANA BLVD APT 3702
HONOLULU, HI 968144654
Phone: (949) 230-8886
Type: Location
Grand Avenue, Chino Hills, San Bernardino County, California, 91709, United States
CHINO HILLS, CA 917091489
Phone: (626) 821-5903
Type: Mailing
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 $20.
Total Amount is formed as General ($20) + Research ($0) + Ownership ($0) = $20.
Last reported payment date: 2024-10-02 • Largest payer in this snapshot: Abbott Laboratories ($20).
Total Amount
$20
General + Research + Ownership
Payments
1
Total payment records
General Amount
$20
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $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: 2023-11-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
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 |
|---|---|---|---|---|
| I20141218001495 | I | Diagnostic Radiology | CA | TBD |
| I20191114001841 | I | Diagnostic Radiology | HI | TBD |
| I20210616002862 | I | Diagnostic Radiology | PA | TBD |
| I20231110000869 | I | Diagnostic Radiology | NV | 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 |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 560 | 504 | $0 |
| 70450 | Ct scan head or brain without contrast | 148 | 145 | $0 |
| 72125 | Ct scan of upper spine without contrast | 121 | 120 | $0 |
| 71046 | X-ray of chest, 2 views | 108 | 108 | $0 |
| 74176 | Ct scan of abdomen and pelvis without contrast | 98 | 97 | $0 |
Insurance plans in this area (ZIP 96814)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | CA | 74177 | CT scan of abdomen and pelvis with contrast | 119 | 119 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease, Internal Medicine | PA | |
| Internal Medicine | PA | |
| Internal Medicine, Hospitalist | NY | |
| - | PA | |
| Diagnostic Radiology | PA | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL | |
| Cardiovascular Disease (Cardiology), Critical Care (Intensivists) | PA | |
| Physician Assistant | DE | |
| Cardiovascular Disease (Cardiology), Internal Medicine, Interventional Cardiology | PA | |
| Certified Registered Nurse Anesthetist (Crna) | PA |
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