MS. VIVIAN H DIEP (MD) – Emergency Medicine Physician, NPI 1093344913
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
557 EMERGENCY MEDICINE in AR
Provider Addresses for MS. VIVIAN H DIEP (MD)
4301 W Markham St # 584
Little Rock, AR 722057101
Phone: (501) 686-6993
Type: Location
1 Childrens Way # 584
Little Rock, AR 722023500
Phone: (501) 686-6993
Type: Location
3 Erie Ct
Oak Park, IL 603022519
Phone: (708) 383-6200
Type: Location
740 N ABERDEEN ST APT 1113
CHICAGO, IL 606426074
Phone: (612) 859-4657
Type: Mailing
4646 N MARINE DR
CHICAGO, IL 606405759
Phone: (773) 878-8700
Type: Location
1601 INDIAN TRL
ROWLETT, TX 750881598
Phone: (612) 859-4657
Type: Mailing
4301 W MARKHAM ST # 584
LITTLE ROCK, AR 722057101
Phone: (501) 686-6993
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: 2023-10-09
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 |
|---|---|---|---|---|
| I20231009002709 | I | Emergency Medicine | IL | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 59 | 59 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 13 | 13 | $0 |
Insurance plans in this area (ZIP 72205)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IL | |
| Emergency Medicine | MI | |
| Emergency Medicine | IL | |
| - | IL | |
| Emergency Medicine | WI | |
| Emergency Medicine | CA | |
| Nurse Practitioner | IL | |
| Emergency Medicine | IL | |
| Emergency Medicine, Internal Medicine | MO | |
| Emergency Medicine | MO |
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