DR. JOHN S WEITZNER MD
NPI 1023175833
Specialist in Chicago, IL

Active since January 02, 2007
1725 W HARRISON ST, SUITE 838, CHICAGO, IL 60612(312) 421-2010(312) 942-2233 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. John S Weitzner Md NPPES

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

DR. JOHN S WEITZNER MD (NPI 1023175833) is an individual specialist in Chicago, Illinois and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1023175833
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. JOHN S WEITZNERCredential: MD
Location Address1725 W HARRISON ST, SUITE 838Chicago, IL 60612-3841
Mailing Address1725 W Harrison St, Suite 838Chicago, IL 60612-3841 · (312) 421-2010 · Fax (312) 942-2233
Fax(312) 942-2233
Sole ProprietorYes
Enumeration DateJanuary 2, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1023175833 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

1725 W HARRISON ST, Chicago, IL 60612

Other Identifiers 2

Medicare UPIND89594IL
Medicare ID-Type Unspecified920360IL

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.

Internal Medicine (Medical Oncology)
1725 W HARRISON ST, SUITE 809
CHICAGO, IL 60612
Clinic/Center (Ophthalmologic Surgery)
1725 W HARRISON ST, STE 910
CHICAGO, IL 60612
Pediatrics (Pediatric Infectious Diseases)
1725 W HARRISON ST, SUITE 710
CHICAGO, IL 60612
Internal Medicine (Hematology)
1725 W HARRISON ST, SUITE 1010
CHICAGO, IL 60612
Internal Medicine
1725 W HARRISON ST, SUITE 263
CHICAGO, IL 60612
Specialist
1725 W HARRISON ST, SUITE 744
CHICAGO, IL 60612
Radiology (Diagnostic Radiology)
1725 W HARRISON ST, SUITE 155
CHICAGO, IL 60612
Specialist
1725 W HARRISON ST, SUITE 762
CHICAGO, IL 60612

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 John Weitzner's NPI number?

The NPI number for John Weitzner is 1023175833. It was assigned to this individual provider in the NPPES registry on January 2, 2007.

Where is John Weitzner located?

John Weitzner practices at 1725 W Harrison St Suite 838, Chicago, IL 60612. The listed phone number is (312) 421-2010.

What is John Weitzner's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for John Weitzner was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.