ALEXANDER LIM CHENG (M.D.) – Internal Medicine Physician, NPI 1396806428
Internal Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for ALEXANDER LIM CHENG (M.D.)
520, West Beverly Boulevard, Montebello, Los Angeles County, California, 90640, United States
MONTEBELLO, CA 906403622
Phone: (323) 721-0690
Fax: (323) 721-4342
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: 2009-06-30
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 |
|---|---|---|---|---|
| I20090630000586 | 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 |
|---|---|---|---|---|
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 99 | 41 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 33 | 30 | $0 |
| 86580 | Skin test for tuberculosis | 23 | 23 | $0 |
Insurance plans in this area (ZIP 90640)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CA | |
| Physician Assistant | CA | |
| Clinical Social Worker | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA | |
| General Practice | CA | |
| Clinical Social Worker | CA | |
| Nurse Practitioner | OR | |
| General Practice | CA | |
| Internal Medicine | CA |
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