DR. STEPHEN E. SHAFFER (MD) – Pediatric Gastroenterology Physician, NPI 1023100872
Pediatric Gastroenterology Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. STEPHEN E. SHAFFER (MD)
191, Mill Street, Rockport, Knox County, Maine, 04856, United States
ROCKLAND, DE 197230191
Phone: (302) 651-4000
Fax: (302) 651-4945
Type: Mailing
Nemours/Alfred I. duPont Hospital for Children, 1600, Rockland Road, Wilmington, New Castle County, Delaware, 19803, United States
WILMINGTON, DE 198033607
Phone: (302) 651-4200
Fax: (302) 651-5838
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $54.
Total Amount is formed as General ($54) + Research ($0) + Ownership ($0) = $54.
Last reported payment date: 2024-03-05 • Largest payer in this snapshot: Regeneron Healthcare Solutions, Inc. ($34).
Total Amount
$54
General + Research + Ownership
Payments
2
Total payment records
General Amount
$54
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Regeneron Healthcare Solutions, Inc. | $34 |
| IRONWOOD PHARMACEUTICALS, INC | $20 |
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: 2005-08-31
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 |
|---|---|---|---|---|
| I20050831000040 | I | Gastroenterology | 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 19723)
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