SHERIF ISSHAK IBRAHIM (MD) – Nephrology Physician, NPI 1699897579
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
796 NEPHROLOGY in FL
Provider Addresses for SHERIF ISSHAK IBRAHIM (MD)
500 E CENTRAL AVE
WINTER HAVEN, FL 338803053
Phone: (863) 293-1191
Type: Mailing
325 1ST ST N
WINTER HAVEN, FL 338814111
Phone: (863) 293-1191
Fax: (863) 837-5379
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 19 Open Payments records for all available years, with a total value of $450.
Total Amount is formed as General ($450) + Research ($0) + Ownership ($0) = $450.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Horizon Therapeutics plc ($65).
Total Amount
$450
General + Research + Ownership
Payments
19
Total payment records
General Amount
$450
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
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: 2018-02-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20150806012843 | I | Nephrology | AZ | TBD |
| I20180205001182 | I | Nephrology | FL | 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 |
|---|---|---|---|---|
| 90970 | Dialysis services, per day, less than full month service (20 years or older) | 739 | 18 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 473 | 141 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 400 | 112 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 336 | 148 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 223 | 104 | $0 |
Insurance plans in this area (ZIP 33880)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Orthopedic Surgery | FL | |
| H E M A T O L O G Y | NY | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL | |
| Internal Medicine | FL | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL | |
| N E P H R O L O G Y | FL |
Reviews
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