MRS. SANDRA MAZZEFFI (APRN) – Family Nurse Practitioner, NPI 1740844232
Family Nurse Practitioner
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Profile Insights
NPPES metrics only — not quality of care.
11,632 NURSE PRACTITIONER in IL
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Provider Addresses for MRS. SANDRA MAZZEFFI (APRN)
7906, West Elmgrove Drive, Elmwood Park, Leyden Township, Cook County, Illinois, 60707, United States
ELMWOOD PARK, IL 607071323
Phone: (773) 870-6368
Type: Mailing
2160 S 1ST AVE
MAYWOOD, IL 601533328
Phone: (708) 216-9000
Type: Mailing
Illinois Masonic Medical Center, 3000, North Halsted Street, Boystown, Lake View, Lakeview, Chicago, Lake View Township, Cook County, Illinois, 60657, United States
CHICAGO, IL 606575188
Phone: (773) 296-3390
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $182.
Total Amount is formed as General ($182) + Research ($0) + Ownership ($0) = $182.
Last reported payment date: 2024-09-27 • Largest payer in this snapshot: Solventum Corporation ($134).
Total Amount
$182
General + Research + Ownership
Payments
4
Total payment records
General Amount
$182
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Solventum Corporation | $134 |
| Janssen Pharmaceuticals, Inc | $48 |
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: 2020-04-17
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 |
|---|---|---|---|---|
| I20200417001943 | I | Nurse Practitioner | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 52 | 38 | $0 |
Insurance plans in this area (ZIP 60707)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | IL | |
| Internal Medicine | IL | |
| Diagnostic Radiology | WI | |
| Internal Medicine | MI | |
| Hematology/Oncology, Hospice/Palliative Care | IL | |
| Nurse Practitioner | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | OH | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| O T O L A R Y N G O L O G Y | CT |
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