DR. CLIFFORD LIU (M.D.) – Hospitalist Physician, NPI 1831299528
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
Provider Addresses for DR. CLIFFORD LIU (M.D.)
2121 Santa Monica Blvd
Santa Monica, CA 904042303
Phone: (310) 453-1324
Type: Location
West Romneya Drive, Anaheim, Orange County, California, 92801, United States
SUITE 409
ANAHEIM, CA 928011830
Phone: (714) 772-8282
Fax: (714) 772-8252
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 43 Open Payments records for all available years, with a total value of $960.
Total Amount is formed as General ($960) + Research ($0) + Ownership ($0) = $960.
Last reported payment date: 2024-11-21 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($209).
Total Amount
$960
General + Research + Ownership
Payments
43
Total payment records
General Amount
$960
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-21
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2009-08-13
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 |
|---|---|---|---|---|
| I20090813000572 | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 461 | 185 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 175 | 166 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 126 | 124 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 113 | 52 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 55 | 55 | $0 |
Insurance plans in this area (ZIP 90404)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | CA | |
| - | CA | |
| O T O L A R Y N G O L O G Y | CA | |
| - | CA | |
| Diagnostic Radiology | CA | |
| Hospitalist, Internal Medicine | CA | |
| Emergency Medicine | CA | |
| Family Practice | CA | |
| - | TX | |
| Endocrinology, Internal Medicine | CA |
Reviews
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