DR. WADAH ATASSI (MD) – Nephrology Physician, NPI 1336125327
Nephrology Physician
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Profile Insights
NPPES metrics only — not quality of care.
629 NEPHROLOGY in IL
Provider Addresses for DR. WADAH ATASSI (MD)
2055 W Army Trail Rd Ste 110E
Addison, IL 601011478
Phone: (773) 483-2200
Fax: (773) 483-2201
Type: Location
6307 S Stewart Ave Ste 210
Chicago, IL 606213116
Phone: (773) 483-2200
Fax: (773) 483-2201
Type: Location
120 W 22ND ST STE 200
OAK BROOK, IL 605231563
Phone: (630) 573-5000
Type: Mailing
Holy Cross Hospital, 2701, West 68th Street, Chicago Lawn, Chicago, Lake Township, Cook County, Illinois, 60629, United States
PROFESSIONAL PAVILION 4 SOUTH
CHICAGO, IL 606291813
Phone: (773) 735-4884
Fax: (773) 735-2625
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 24 Open Payments records for all available years, with a total value of $744.
Total Amount is formed as General ($744) + Research ($0) + Ownership ($0) = $744.
Last reported payment date: 2024-10-21 • Largest payer in this snapshot: Boehringer Ingelheim Pharmaceuticals, Inc. ($154).
Total Amount
$744
General + Research + Ownership
Payments
24
Total payment records
General Amount
$744
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-21
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: 2004-02-02
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 |
|---|---|---|---|---|
| I20040202000554 | 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 | 244 | 112 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 151 | 67 | $0 |
| 90966 | Home dialysis services per month (20 years or older) | 102 | 20 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 71 | 24 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 47 | 42 | $0 |
Insurance plans in this area (ZIP 60101)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | IL | 90935 | Hemodialysis procedure with one physician evaluation | 64 | 51 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | IL | |
| Internal Medicine | IL | |
| Nephrology, Internal Medicine, Hospitalist | IL | |
| Nephrology, Internal Medicine | IL | |
| Internal Medicine, Nephrology | IL |
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