DR. ANDREW KOWALSKI (M.D.) – Nephrology Physician, NPI 1114293123
Nephrology Physician
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Profile Insights
NPPES metrics only — not quality of care.
629 NEPHROLOGY in IL
Provider Addresses for DR. ANDREW KOWALSKI (M.D.)
660 N Westmoreland Rd
Lake Forest, IL 600451659
Phone: (847) 234-5600
Type: Location
6948 W Windsor Ave
Berwyn, IL 604023335
Phone: (708) 749-4617
Fax: (708) 492-4077
Type: Location
6827 STANLEY AVE
BERWYN, IL 604023287
Phone: (708) 749-4617
Fax: (708) 492-4077
Type: Location
120 W 22ND ST STE 200
OAK BROOK, IL 605231563
Phone: (630) 573-5000
Fax: (630) 491-5472
Type: Mailing
1740 W Taylor St
Chicago, IL 606127232
Phone: (866) 600-2273
Type: Location
2055 W ARMY TRAIL RD STE 110E
ADDISON, IL 601011478
Phone: (773) 284-9247
Fax: (773) 284-9249
Type: Location
6948 W WINDSOR AVE
BERWYN, IL 604023335
Phone: (708) 749-4617
Fax: (708) 492-4077
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 27 Open Payments records for all available years, with a total value of $929.
Total Amount is formed as General ($929) + Research ($0) + Ownership ($0) = $929.
Last reported payment date: 2024-12-13 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($173).
Total Amount
$929
General + Research + Ownership
Payments
27
Total payment records
General Amount
$929
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-13
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: 2023-04-13
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 |
|---|---|---|---|---|
| I20150812008710 | I | Nephrology | IL | TBD |
| I20230413003015 | I | Nephrology | IN | 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 | 114 | 61 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 67 | 60 | $0 |
| 99152 | Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 65 | 47 | $0 |
| 90935 | Hemodialysis procedure with physician evaluation | 64 | 36 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 53 | 23 | $0 |
Insurance plans in this area (ZIP 60045)
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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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