SALLY KNOOIHUIZEN (MD) – Internal Medicine Physician, NPI 1164943171
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
828 GASTROENTEROLOGY in MA
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Provider Addresses for SALLY KNOOIHUIZEN (MD)
4545 R ST
LINCOLN, NE 685033799
Phone: (402) 465-4545
Type: Mailing
165 CAMBRIDGE ST STE 502
BOSTON, MA 021142759
Phone:
Type: Mailing
Massachusetts General Hospital, 55, Fruit Street, Beacon Hill, Boston, Suffolk County, Massachusetts, 02114, United States
BOSTON, MA 021142621
Phone: (617) 726-2000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 44 Open Payments records for all available years, with a total value of $1,331.
Total Amount is formed as General ($1,331) + Research ($0) + Ownership ($0) = $1,331.
Last reported payment date: 2024-10-30 • Largest payer in this snapshot: AIMMUNE THERAPEUTICS, INC. ($514).
Total Amount
$1,331
General + Research + Ownership
Payments
44
Total payment records
General Amount
$1,331
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-30
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2023-08-18
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 |
|---|---|---|---|---|
| I20230818001815 | I | Gastroenterology | NE | 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 |
|---|---|---|---|---|
| J3380 | Injection, vedolizumab, 1 mg | 7,500 | 22 | $0 |
| J1745 | Injection, infliximab, excludes biosimilar, 10 mg | 1,410 | 21 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 37 | 37 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 35 | 35 | $0 |
| 96413 | Administration of chemotherapy into vein, 1 hour or less | 27 | 23 | $0 |
Insurance plans in this area (ZIP 68503)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NE | |
| Physician Assistant | NE | |
| Certified Registered Nurse Anesthetist (Crna) | NE | |
| Internal Medicine, Gastroenterology | NE | |
| G A S T R O E N T E R O L O G Y | NE | |
| Nurse Practitioner | NE | |
| - | NE | |
| Nurse Practitioner | NE | |
| G A S T R O E N T E R O L O G Y | NE | |
| - | NE |
Reviews
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