DIANE LAU LUM (M.D.) – Internal Medicine Physician, NPI 1821077975
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,274 INTERNAL MEDICINE in AR
Provider Addresses for DIANE LAU LUM (M.D.)
228 W Tyler Ave
Suite 200
West Memphis, AR 723014223
Phone: (870) 735-1973
Fax: (870) 735-5433
Type: Location
228, West Tyler Avenue, West Memphis, Crittenden County, Arkansas, 72301, United States
SUITE 200
WEST MEMPHIS, AR 723014223
Phone: (870) 735-1973
Fax: (870) 735-5433
Type: Mailing
Park Avenue, White Station, Memphis, Shelby County, Tennessee, 38120, United States
MEMPHIS, TN 381195212
Phone: (901) 761-2100
Type: Location
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.
This can happen when there are no reportable CMS Open Payments records.
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: 2014-11-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040603001513 | I | Internal Medicine | AR | TBD |
| I20141121001690 | I | Internal Medicine | TN | 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 |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 476 | 210 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 366 | 184 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 226 | 39 | $0 |
| 83036 | Hemoglobin a1c level | 124 | 73 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 108 | 108 | $0 |
Insurance plans in this area (ZIP 72301)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Internal Medicine | TN | |
| General Surgery | TN | |
| Family Practice | TN | |
| Family Practice | TN | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | TN | |
| - | TN | |
| - | TN | |
| Physician Assistant | TN | |
| Nurse Practitioner | TN | |
| - | TN |
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