JOAN CHIA-CHIU WU (M.D.) – Dermatology Physician, NPI 1144345372
Dermatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,140 DERMATOLOGY in CA
Provider Addresses for JOAN CHIA-CHIU WU (M.D.)
100 UCLA MEDICAL PLZ
SUITE 730
LOS ANGELES, CA 900246970
Phone: (310) 209-1440
Fax: (310) 209-0070
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)
No Open Payments data available for this provider.
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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: 2017-12-06
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 |
|---|---|---|---|---|
| I20171206002912 | I | Dermatology | 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 |
|---|---|---|---|---|
| 99348 | Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 302 | 124 | $0 |
| 17003 | Destruction of precancer skin growth, 2-14 growths | 198 | 52 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 177 | 92 | $0 |
| 99349 | Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 122 | 69 | $0 |
| 17110 | Destruction of skin growth, 1-14 growths | 121 | 67 | $0 |
Insurance plans in this area (ZIP 90024)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Physician Assistant | CA |
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