MARGARET DUVAL (LCSW) – Clinical Social Worker, NPI 1538263157
Clinical Social Worker
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
299 CLINICAL SOCIAL WORKER in DE
Provider Addresses for MARGARET DUVAL (LCSW)
3, Marley Road, Penn Acres, Penn Acres South, New Castle County, Delaware, 19720, United States
NEW CASTLE, DE 197203215
Phone: (302) 328-3402
Type: Mailing
5235 W WOODMILL DR
SUITE #47
WILMINGTON, DE 198084068
Phone: (302) 995-1680
Fax: (302) 995-1790
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: 2010-12-06
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 |
|---|---|---|---|---|
| I20101206000105 | I | Clinical Social Worker | DE | 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 |
|---|---|---|---|---|
| 90837 | Psychotherapy, 1 hour | 254 | 17 | $0 |
| 90834 | Psychotherapy, 45 minutes | 82 | 13 | $0 |
Insurance plans in this area (ZIP 19720)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Mental Health Counselor | DE | |
| Clinical Social Worker | DE | |
| Clinical Social Worker | DE |
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