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ALAN R LEFF MD
NPI 1023170578
Internal Medicine - Pulmonary Disease in Burr Ridge, IL

Active since December 14, 2006
180 HARVESTER DR STE 110, BURR RIDGE, IL 60527(773) 834-4064 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Alan R Leff Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALAN R LEFF MD (NPI 1023170578) is an individual pulmonary disease provider in Burr Ridge, Illinois and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1023170578
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameALAN R LEFFCredential: MD
Location Address180 HARVESTER DR STE 110Burr Ridge, IL 60527-6686
Mailing Address5841 S Maryland Ave # Mc1099Chicago, IL 60637-1447
Phone(773) 834-4064
Sole ProprietorNo
Enumeration DateDecember 14, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1023170578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
180 HARVESTER DR STE 110, Burr Ridge, IL 60527
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Other Identifiers 1

Medicare ID-Type UnspecifiedP09970

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHAD T WHELAN MD
Hospitalist
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 834-4064
DAVID O MELTZER MD
Hospitalist
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 702-1150
RICHARD M DEMAY MD
Pathology (Anatomic Pathology)
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 834-4064
RUTH R RUDINSKY MD
Pediatrics (Pediatric Hematology-Oncology)
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 834-4064
ANMOL PATEL MD, MPH
Student in an Organized Health Care Education/Training Program
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 702-1150
WICKII VIGNESWARAN MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 834-4064
ANDREA SHASHOUA MD
Anesthesiology
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 834-4064
JOHN F MARCINAK MD
Pediatrics (Pediatric Infectious Diseases)
180 HARVESTER DR STE 110
BURR RIDGE, IL 60527
Dupage County (773) 834-4064

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alan Leff's NPI number?

The NPI number for Alan Leff is 1023170578. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Where is Alan Leff located?

Alan Leff practices at 180 Harvester Dr Ste 110, Burr Ridge, IL 60527. The listed phone number is (773) 834-4064.

What is Alan Leff's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

When was this NPI record last updated?

The NPPES record for Alan Leff was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.