HSIN-CHEN LIU – Hospitalist Physician, NPI 1609353135
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for HSIN-CHEN LIU
1720, East Cesar E Chavez Avenue, Boyle Heights, Los Angeles, Los Angeles County, California, 90033, United States
LOS ANGELES, CA 900332414
Phone: (323) 268-5000
Type: Location
1701, East Cesar E Chavez Avenue, Boyle Heights, Los Angeles, Los Angeles County, California, 90033, United States
LOS ANGELES, CA 900332464
Phone: (323) 268-5000
Type: Mailing
9525 MONTE VISTA AVE STE 105
MONTCLAIR, CA 917632231
Phone: (909) 626-1205
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 76 Open Payments records for all available years, with a total value of $1,076.
Total Amount is formed as General ($1,076) + Research ($0) + Ownership ($0) = $1,076.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($1,026).
Total Amount
$1,076
General + Research + Ownership
Payments
76
Total payment records
General Amount
$1,076
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $1,026 |
| Regeneron Healthcare Solutions, Inc. | $26 |
| Merck Sharp & Dohme LLC | $24 |
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: 2021-07-12
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 |
|---|---|---|---|---|
| I20210712003708 | 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 | 303 | 90 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 101 | 91 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 68 | 22 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 53 | 48 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 41 | 38 | $0 |
Insurance plans in this area (ZIP 90033)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CA | |
| Pulmonary Disease, Internal Medicine | CA | |
| Internal Medicine, Sleep Medicine | CA | |
| Internal Medicine | AL | |
| Family Practice | CA | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| Hospitalist, Internal Medicine | IL | |
| Internal Medicine | CA | |
| Family Practice, Hospitalist | CA |
Reviews
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