ERNEST F DEJESUS (MD) – Nephrology Physician, NPI 1295737088
Nephrology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
629 NEPHROLOGY in IL
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Provider Addresses for ERNEST F DEJESUS (MD)
West 22nd Street, Oak Brook, DuPage County, Illinois, 60521, United States
STE 200
OAK BROOK, IL 605231563
Phone: (630) 573-5000
Type: Mailing
25, Winfield Road, Winfield Mobile Home Park, Winfield, Putnam County, West Virginia, 25213, United States
SUITE 414
WINFIELD, IL 60190
Phone: (630) 690-1220
Fax: (630) 690-5323
Type: Location
302 Randall Rd
Geneva, IL 601344209
Phone: (630) 690-1220
Fax: (630) 208-1667
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 72 Open Payments records for all available years, with a total value of $1,874.
Total Amount is formed as General ($1,874) + Research ($0) + Ownership ($0) = $1,874.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Amgen Inc. ($286).
Total Amount
$1,874
General + Research + Ownership
Payments
72
Total payment records
General Amount
$1,874
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $286 |
| AstraZeneca Pharmaceuticals LP | $198 |
| Ascendis Pharma Inc | $164 |
| Travere Therapeutics, Inc. | $118 |
| Bard Peripheral Vascular, Inc. | $107 |
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: 2005-06-23
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 |
|---|---|---|---|---|
| I20050623000129 | I | Nephrology | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,009 | 302 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 464 | 166 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 408 | 51 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 212 | 36 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 189 | 159 | $0 |
Insurance plans in this area (ZIP 60523)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| Nephrology, Internal Medicine | IL | |
| Nephrology, Internal Medicine | IL | |
| - | IN | |
| N E P H R O L O G Y | IL | |
| N E P H R O L O G Y | IL | |
| Nephrology, Internal Medicine | IL | |
| N E P H R O L O G Y | IL | |
| N E P H R O L O G Y | IL | |
| - | IL |
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