ANDREW HWANG – Internal Medicine Physician, NPI 1114458809
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,508 INTERNAL MEDICINE in CA
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Provider Addresses for ANDREW HWANG
Riverside Community Hospital, 4445, Magnolia Avenue, Riverside, Riverside County, California, 92501, United States
RCH GME OFFICE
RIVERSIDE, CA 925014135
Phone: (949) 788-3000
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)
CMS reports 3 Open Payments records for all available years, with a total value of $55.
Total Amount is formed as General ($55) + Research ($0) + Ownership ($0) = $55.
Last reported payment date: 2024-12-13 • Largest payer in this snapshot: Aveo Pharmaceuticals, Inc. ($40).
Total Amount
$55
General + Research + Ownership
Payments
3
Total payment records
General Amount
$55
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Aveo Pharmaceuticals, Inc. | $40 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $15 |
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: 2020-08-06
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 |
|---|---|---|---|---|
| I20200806002934 | 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 | 233 | 98 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 220 | 89 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 36 | 34 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 33 | 33 | $0 |
Insurance plans in this area (ZIP 92501)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MN | |
| Internal Medicine | CA | |
| Internal Medicine | CA | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Sleep Medicine, Internal Medicine | CA | |
| Internal Medicine | FL | |
| Physical Medicine And Rehabilitation, Pain Management | CA |
Reviews
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