MARGARET R. CHOU (M. D.) – Obstetrics & Gynecology Physician, NPI 1902880651
Obstetrics & Gynecology Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MARGARET R. CHOU (M. D.)
200 HYGEIA DRIVE
SUITE 2300
NEWARK, DE 19713
Phone: (302) 674-0223
Fax: (302) 674-0109
Type: Mailing
4755 OGLETOWN STANTON RD
SUITE 1903
NEWARK, DE 197182200
Phone: (302) 733-6510
Fax: (302) 733-3340
Type: Location
PO BOX 191
ROCKLAND, DE 197320191
Phone:
Type: Mailing
1600 ROCKLAND RD
WILMINGTON, DE 198033607
Phone: (302) 651-4000
Type: Location
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 $154.
Total Amount is formed as General ($154) + Research ($0) + Ownership ($0) = $154.
Last reported payment date: 2024-09-16 • Largest payer in this snapshot: Boehringer Ingelheim Pharmaceuticals, Inc. ($154).
Total Amount
$154
General + Research + Ownership
Payments
3
Total payment records
General Amount
$154
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $154 |
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: 2011-04-14
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 |
|---|---|---|---|---|
| I20110414000114 | I | Obstetrics/Gynecology | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 19713)
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