LEONARD POTEMPA (MD) – Nephrology Physician, NPI 1710984646
Nephrology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
629 NEPHROLOGY in IL
Provider Addresses for LEONARD POTEMPA (MD)
5201 WILLOW SPRINGS RD
SUITE 260
LA GRANGE HIGHLANDS, IL 605256537
Phone: (708) 354-1306
Fax: (708) 354-1538
Type: Location
2340 S Highland Ave Ste 160
Lombard, IL 601485395
Phone: (630) 495-9356
Fax: (630) 495-9357
Type: Location
120 W 22ND ST STE 200
OAK BROOK, IL 605231563
Phone: (630) 573-5000
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $61.
Total Amount is formed as General ($61) + Research ($0) + Ownership ($0) = $61.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Vifor Pharma, Inc. ($58).
Total Amount
$61
General + Research + Ownership
Payments
3
Total payment records
General Amount
$61
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 |
|---|---|
| Vifor Pharma, Inc. | $58 |
| Travere Therapeutics, Inc. | $3 |
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: 2009-12-28
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 |
|---|---|---|---|---|
| I20091228000525 | 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 | 546 | 258 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 407 | 176 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 286 | 46 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 270 | 152 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 156 | 145 | $0 |
Insurance plans in this area (ZIP 60525)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | TX | |
| - | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| N E P H R O L O G Y | IL | |
| N E P H R O L O G Y | IL | |
| Nurse Practitioner | IL | |
| N E P H R O L O G Y | IL | |
| - | IL | |
| N E P H R O L O G Y | IL |
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