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

DR. THANKAPPA PILLAI BALAJI M.D.
NPI 1851392567
Pediatrics in Chicago, IL

Q: What is Thankappa Balaji's NPI number?

The NPI number for Thankappa Balaji is 1851392567. It was assigned to this individual provider in the NPPES registry on August 3, 2005.

Q: What is Thankappa Balaji'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 Thankappa Balaji 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 27 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 August 03, 2005

1501 S CALIFORNIA AVE, CHICAGO, IL 60608(773) 257-6194 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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About Dr. Thankappa Pillai Balaji M.d. NPPES

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

DR. THANKAPPA PILLAI BALAJI M.D. (NPI 1851392567) is an individual pediatrics provider in Chicago, Illinois and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1851392567

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameDR. THANKAPPA PILLAI BALAJICredential: M.D.

Location Address1501 S CALIFORNIA AVEChicago, IL 60608-1732

Mailing Address3537 Paysphere CirChicago, IL 60674-0035 · (708) 786-2900

Phone(773) 257-6194

Sole ProprietorNo

Enumeration DateAugust 3, 2005

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1851392567 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

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.

Also ListedPediatrics · Neonatal-Perinatal MedicineTaxonomy 2080N0001X

1501 S CALIFORNIA AVE, Chicago, IL 60608

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Other Identifiers 1

Medicaid036-096567-5IL

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.

STEPHANIE JORDAN

Community Health Worker

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 542-2000

DR. SURAIYA I ALVI M.D.

Pediatrics

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 257-6843

MOUNT SINAI COMMUNITY FOUNDATION

Physician Assistant (Surgical)

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 257-6663

DR. AMARDEEP SINGH M.D.

Emergency Medicine

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 257-6843

DR. NANCY A SIBIGTROTH M.D.

Radiology (Diagnostic Radiology)

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 257-6498

DR. SHANTA NATH M.D.

Pediatrics

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 257-6184

DR. MOHAMMED AZHER KASSEM M.D

Internal Medicine

1501 S CALIFORNIA AVE, MT SINAI HOSPITAL, CANCER CARE CENTER
CHICAGO, IL 60608

Cook County (773) 257-6120

ALYNA CHIEN MD

Pediatrics

1501 S CALIFORNIA AVE
CHICAGO, IL 60608

Cook County (773) 257-6770

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 Thankappa Balaji's NPI number?

The NPI number for Thankappa Balaji is 1851392567. It was assigned to this individual provider in the NPPES registry on August 3, 2005.

Where is Thankappa Balaji located?

Thankappa Balaji practices at 1501 S California Ave, Chicago, IL 60608. The listed phone number is (773) 257-6194.

What is Thankappa Balaji'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 Thankappa Balaji 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 27 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.