ALANNA CHAU – Internal Medicine Physician, NPI 1013379692
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,558 INTERNAL MEDICINE in CA
Provider Addresses for ALANNA CHAU
757 Westwood Plz
Los Angeles, CA 900958358
Phone: (310) 825-9111
Type: Location
UCLA Medical Center - Santa Monica, 1250, 16th Street, Santa Monica, Los Angeles County, California, 90404, United States
2304 CENTRAL WING
SANTA MONICA, CA 90404
Phone: (310) 319-4698
Fax: (310) 219-4908
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 $125.
Total Amount is formed as General ($125) + Research ($0) + Ownership ($0) = $125.
Last reported payment date: 2023-02-23 • Largest payer in this snapshot: Janssen Biotech, Inc. ($125).
Total Amount
$125
General + Research + Ownership
Payments
1
Total payment records
General Amount
$125
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $125 |
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: 2019-03-25
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20190325002556 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 296 | 97 | $0 |
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 231 | 128 | $0 |
| G0316 | Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 226 | 108 | $0 |
| 99310 | Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 194 | 108 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 81 | 78 | $0 |
Insurance plans in this area (ZIP 90095)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Hospitalist | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| Emergency Medicine, Family Practice | CA | |
| Medical Oncology, Hematology/Oncology | CA | |
| Internal Medicine, Hospitalist | CA | |
| - | CA | |
| Rheumatology, Internal Medicine | CA | |
| Hospitalist, Internal Medicine | MA |
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