JOHN J. VAN AALST
NPI 1255340048
Pediatrics in Chicago, IL

Q: What is John Van Aalst's NPI number?

The NPI number for John Van Aalst is 1255340048. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Q: What is John Van Aalst's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: When was this NPI record last updated?

The NPPES record for John Van Aalst was last updated on October 30, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since August 08, 2006

966 W. 21 STREET, CHICAGO, IL 60608(773) 254-1400(312) 829-6829 Get Directions Write a Review

NPPES record last updated: October 30, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About John J. Van Aalst NPPES

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

JOHN J. VAN AALST (NPI 1255340048) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (03655172) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1255340048

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameJOHN J. VAN AALST

Location Address966 W. 21 STREETChicago, IL 60608

Mailing Address1004 N Kenilworth AveOak Park, IL 60302-1318 · (708) 848-0396

Phone(773) 254-1400

Fax(312) 829-6829

Sole ProprietorNo

Enumeration DateAugust 8, 2006

Last NPPES UpdateOctober 30, 2007

✔ NPI 1255340048 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in IL · 03655172

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

966 W. 21 STREET, Chicago, IL 60608

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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 Van Aalst's NPI number?

The NPI number for John Van Aalst is 1255340048. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Where is John Van Aalst located?

John Van Aalst practices at 966 W. 21 Street, Chicago, IL 60608. The listed phone number is (773) 254-1400.

What is John Van Aalst's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for John Van Aalst was last updated on October 30, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.