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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM NORMAN WERNER M.D., M.P.H.
NPI 1073596904
Internal Medicine in Chicago, IL

Active since November 23, 2005
836 W WELLINGTON AVE, CHICAGO, IL 60657(773) 296-5888(773) 296-7925 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Norman Werner M.d., M.p.h. NPPES

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

DR. WILLIAM NORMAN WERNER M.D., M.P.H. (NPI 1073596904) is an individual internal medicine provider in Chicago, Illinois and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1073596904
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM NORMAN WERNERCredential: M.D., M.P.H.
Location Address836 W WELLINGTON AVEChicago, IL 60657-5147
Mailing Address4326 Bobolink TerSkokie, IL 60076-2004 · (847) 673-5398 · Fax (773) 296-7925
Phone(773) 296-5888
Fax(773) 296-7925
Sole ProprietorNo
Enumeration DateNovember 23, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1073596904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
836 W WELLINGTON AVE, Chicago, IL 60657
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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. ROBERT R TURELLI JR. MD
Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5878
JAYME L. CAPPA
Speech-Language Pathologist
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-7988
DR. CHIMUANYA OKOLI MD
Internal Medicine (Sleep Medicine)
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5424
DEBRA FARIDA
Nurse Anesthetist, Certified Registered
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 975-1600
MALIK SAHOURI DO
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5187
SERGIO GUTIERREZ NUNEZ MD
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5187
MS. NOREEN MARIE SHERIDAN RD. LDN,CDE
Dietitian, Registered
836 W WELLINGTON AVE, FOOD AND NUTRITION DEPT.
CHICAGO, IL 60657
Cook County (773) 296-5912
ANN M HARVEY APN, CNP
Nurse Practitioner
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-3646

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 William Werner's NPI number?

The NPI number for William Werner is 1073596904. It was assigned to this individual provider in the NPPES registry on November 23, 2005.

Where is William Werner located?

William Werner practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 296-5888.

What is William Werner's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for William Werner was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.