Leslie Zun, MD
NPI 1376543421 · Emergency Medicine Physician · Glenview, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Zun, MD is a Emergency Medicine Physician provider in Glenview, IL (NPI 1376543421).
Provider details
- NPI number
- 1376543421
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036066812 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Urgent Care Clinic/Center261QU0200X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,500 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 228 E Lake StAddison, IL 60101-2889Phone: (630) 835-1430Fax: (630) 835-1433
- 1542 W Devon AveChicago, IL 60660-1344Phone: (773) 465-4600Fax: (773) 465-4666
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2025-11-03
- Certified
- 2025-11-03
Frequently asked questions
- What is Leslie Zun's NPI number?
- Leslie Zun's National Provider Identifier (NPI) is 1376543421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Zun's specialty?
- Leslie Zun is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leslie Zun located?
- Leslie Zun's practice location on file with NPPES is 2701 Patriot Blvd Ste 110, Glenview, IL 60026-8039.
- What is Leslie Zun's phone number?
- The practice phone number listed in the NPPES registry for Leslie Zun is (847) 475-2273.
- Does Leslie Zun accept Medicare?
- Leslie Zun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Zun's NPI active?
- Yes — Leslie Zun's NPI (1376543421) is active in the NPPES registry as of the last update on 2025-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.