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JOHN DAVID SIEGFRIED MD
NPI 1942314612
Internal Medicine - Gastroenterology in Aurora, IL

Active since August 18, 2006
1221 N HIGHLAND AVE, AURORA, IL 60506(630) 859-8700 Get Directions Write a Review

NPPES record last updated: June 27, 2011. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About John David Siegfried Md NPPES

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

JOHN DAVID SIEGFRIED MD (NPI 1942314612) is an individual gastroenterology provider in Aurora, Illinois, licensed in Illinois (036-053793) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1942314612
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameJOHN DAVID SIEGFRIEDCredential: MD
Location Address1221 N HIGHLAND AVEAurora, IL 60506-1404
Mailing Address1870 W Galena BlvdAurora, IL 60506-4356 · (630) 859-6700
Phone(630) 859-8700
Sole ProprietorNo
Enumeration DateAugust 18, 2006
Last NPPES UpdateJune 27, 2011
✔ NPI 1942314612 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in IL · 036-053793
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.

1221 N HIGHLAND AVE, Aurora, IL 60506
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Other Identifiers 5

Medicare NSC0727500001IL
Medicare ID-Type UnspecifiedL86559IL
Medicare UPIND89432
Medicare ID-Type UnspecifiedL86560IL
Medicaid036053793IL

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.

MRS. RACHEL NICOLE BULLAR P.T.
Physical Therapist
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700
STEVEN I RABIN MD
Orthopaedic Surgery
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700
FRANKLIN E BAUMANN MD
Surgery
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700
ANNE M KINN DO
Hospitalist
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 801-2678
DAVID H DAVIS MD
Internal Medicine (Cardiovascular Disease)
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700
CORNELIUS K SMITH MD
Urology
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700
JUDSON E JONES MD
Obstetrics & Gynecology
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700
MICHAEL C LOEBACH MD
Otolaryngology
1221 N HIGHLAND AVE
AURORA, IL 60506
Kane County (630) 859-8700

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 Siegfried's NPI number?

The NPI number for John Siegfried is 1942314612. It was assigned to this individual provider in the NPPES registry on August 18, 2006.

Where is John Siegfried located?

John Siegfried practices at 1221 N Highland Ave, Aurora, IL 60506. The listed phone number is (630) 859-8700.

What is John Siegfried'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 John Siegfried was last updated on June 27, 2011. NPI Profile syncs with the weekly NPPES data releases published by CMS.