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LEON J FRAZIN, M.D., S.C.
NPI 1003912908
Internal Medicine - Cardiovascular Disease in Chicago, IL

Active since September 16, 2006
2222 W DIVISION ST, STE 250, CHICAGO, IL 60622(773) 276-0988(773) 276-0955 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Leon J Frazin, M.d., S.c. NPPES

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

LEON J FRAZIN, M.D., S.C. (NPI 1003912908) is a healthcare organization registered as a cardiovascular disease in Chicago, Illinois and active in the NPI registry since September 2006. The organization lists Leon J Frazin, Physician/surgeon, as its authorized official.

NPPES Registry Identity

NPI1003912908
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameLEON J FRAZIN, M.D.
Location Address2222 W DIVISION ST, STE 250Chicago, IL 60622-2717
Mailing Address241 Golf Mill Ctr, Ste 728Niles, IL 60714-1224 · (847) 635-6490 · Fax (847) 635-6491
Phone(773) 276-0988
Fax(773) 276-0955
Organization SubpartNo
Authorized OfficialLeon J FrazinPhysician/surgeon · (847) 635-6490
Enumeration DateSeptember 16, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1003912908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
2222 W DIVISION ST, Chicago, IL 60622
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Other Names 1

Doing Business AsLeon J Frazin, M.d., S.c.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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.

DR. YUKHOL LERTSBURAPA MD
Legal Medicine
2222 W DIVISION ST, SUITE 260
CHICAGO, IL 60622
Cook County (773) 486-3535
NORTH CHICAGO ORTHOPAEDIC CLINIC
Orthopaedic Surgery
2222 W DIVISION ST, SUITE 235
CHICAGO, IL 60622
Cook County (773) 486-7200
MARCELO N MUNOZ M.D.
Otolaryngology
2222 W DIVISION ST, SUITE 230
CHICAGO, IL 60622
Cook County (773) 342-0993
DR. LUBOV A KLEMINE M.D.
Family Medicine
2222 W DIVISION ST, SUITE 200
CHICAGO, IL 60622
Cook County (773) 395-8444
CHICAGO LASER VEIN INSTITUTE LLC
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2222 W DIVISION ST, SUITE 110
CHICAGO, IL 60622
Cook County (773) 489-3795
SAMUEL F CASTILLO M.D.
Internal Medicine (Gastroenterology)
2222 W DIVISION ST, SUITE 235
CHICAGO, IL 60622
Cook County (773) 342-6800
MARY L KLODNYCKY, M.D., LTD.
Internal Medicine (Cardiovascular Disease)
2222 W DIVISION ST, STE 250
CHICAGO, IL 60622
Cook County (773) 276-0988
SAFDAR ALI MD
Internal Medicine (Cardiovascular Disease)
2222 W DIVISION ST, #220
CHICAGO, IL 60622
Cook County (773) 384-1100

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 Leon J Frazin, M.D.'s NPI number?

The NPI number for Leon J Frazin, M.D. is 1003912908. It was assigned to this organization in the NPPES registry on September 16, 2006. The provider is doing business as Leon J Frazin, M.D., S.C..

Where is Leon J Frazin, M.D. located?

Leon J Frazin, M.D. is located at 2222 W Division St Ste 250, Chicago, IL 60622. The listed phone number is (773) 276-0988.

What is Leon J Frazin, M.D.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

When was this NPI record last updated?

The NPPES record for Leon J Frazin, M.D. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.