DR. LESLIE S ZUN (MD) – Emergency Medicine Physician, NPI 1376543421
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,845 EMERGENCY MEDICINE in IL
Provider Addresses for DR. LESLIE S ZUN (MD)
3537 PAYSPHERE CIR
CHICAGO, IL 606740035
Phone: (708) 786-2900
Type: Mailing
1542 W Devon Ave
Chicago, IL 606601344
Phone: (773) 465-4600
Fax: (773) 465-4666
Type: Location
228 E Lake St
Addison, IL 601012889
Phone: (630) 835-1430
Fax: (630) 835-1433
Type: Location
2317 MEADOW DR S
WILMETTE, IL 600912201
Phone:
Type: Mailing
2701 PATRIOT BLVD STE 110
GLENVIEW, IL 600268039
Phone: (847) 475-2273
Fax: (847) 998-9005
Type: Location
South California Avenue, Brighton Park, Chicago, Cook County, Illinois, 60629, United States
CHICAGO, IL 606081732
Phone: (773) 257-6843
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 23 Open Payments records for all available years, with a total value of $16,573.
Total Amount is formed as General ($16,573) + Research ($0) + Ownership ($0) = $16,573.
Last reported payment date: 2024-09-05 • Largest payer in this snapshot: BioXcel Therapeutics, Inc. ($14,073).
Total Amount
$16,573
General + Research + Ownership
Payments
23
Total payment records
General Amount
$16,573
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| BioXcel Therapeutics, Inc. | $14,073 |
| Noven Pharmaceuticals, Inc. | $2,500 |
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: 2010-07-26
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 |
|---|---|---|---|---|
| I20100726000169 | I | Emergency Medicine | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60674)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| Diagnostic Radiology, Interventional Radiology | IL | |
| P A T H O L O G Y | IL | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| Internal Medicine | IL | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine | MN | |
| - | IL | |
| Physical Therapist In Private Practice | IL | |
| Nurse Practitioner | IL |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.