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

DR. EDWARD J. OLINGER M.D.
NPI 1821073172
Internal Medicine - Gastroenterology in Chicago, IL

Q: What is Edward Olinger's NPI number?

The NPI number for Edward Olinger is 1821073172. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Q: What is Edward Olinger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Edward Olinger 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 35 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.

Active since December 09, 2005

201 E HURON ST, SUITE 12-200, CHICAGO, IL 60611(312) 926-3616(312) 926-3515 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Edward J. Olinger M.d. NPPES

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

DR. EDWARD J. OLINGER M.D. (NPI 1821073172) is an individual gastroenterology provider in Chicago, Illinois and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1821073172

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. EDWARD J. OLINGERCredential: M.D.

Location Address201 E HURON ST, SUITE 12-200Chicago, IL 60611-3197

Mailing Address1730 Park St, Suite 101Naperville, IL 60563-2688 · (630) 718-0200

Phone(312) 926-3616

Fax(312) 926-3515

Sole ProprietorNo

Enumeration DateDecember 9, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1821073172 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

201 E HURON ST, Chicago, IL 60611

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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.

PHILIP K MCCULLOUGH MD SC

Psychiatry & Neurology (Psychiatry)

201 E HURON ST, SUITE 11-100
CHICAGO, IL 60611

Cook County (312) 695-3680

STEVEN POTTS DO

Internal Medicine

201 E HURON ST, #11-230
CHICAGO, IL 60611

Cook County (312) 642-6868

JASON SCOTT MATHIAS MD

Internal Medicine

201 E HURON ST, GALTER 12-205
CHICAGO, IL 60611

Cook County (312) 944-0688

BRANT W. BITTMANN DDS

Dentist (General Practice)

201 E HURON ST, GALTER 2-246
CHICAGO, IL 60611

Cook County (312) 926-3264

MIRA EGBARIA D.D.S.

Student in an Organized Health Care Education/Training Program

201 E HURON ST, GALTER 2-246
CHICAGO, IL 60611

Cook County (256) 503-5241

ASIM M. HAMEEDUDDIN M.D.

Internal Medicine

201 E HURON ST, #12-205
CHICAGO, IL 60611

Cook County (312) 944-0688

ELIZABETH J LAVOO M.D.

Dermatology

201 E HURON ST, GALTER PAV 11-230
CHICAGO, IL 60611

Cook County (312) 642-6868

APRIL HADSAITONG MD

Internal Medicine

201 E HURON ST, SUITE 12-205
CHICAGO, IL 60611

Cook County (312) 944-0688

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 Edward Olinger's NPI number?

The NPI number for Edward Olinger is 1821073172. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Where is Edward Olinger located?

Edward Olinger practices at 201 E Huron St Suite 12-200, Chicago, IL 60611. The listed phone number is (312) 926-3616.

What is Edward Olinger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Edward Olinger 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 35 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.