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BALU NATARAJAN MD SC
NPI 1437350592
Internal Medicine in Chicago, IL

Active since May 29, 2007
711 W NORTH AVE, SUITE 208, CHICAGO, IL 60610(312) 616-7778(312) 276-4304 Get Directions Write a Review

NPPES record last updated: February 19, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 19, 2016, Jan 25, 2016 (2 updates tracked since 2016).

About Balu Natarajan Md Sc NPPES

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

BALU NATARAJAN MD SC (NPI 1437350592) is a healthcare organization registered as an internal medicine in Chicago, Illinois and active in the NPI registry since May 2007. The organization lists Balakrishnan Natarajan, President, as its authorized official.

NPPES Registry Identity

NPI1437350592
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameBALU NATARAJAN MD SC
Location Address711 W NORTH AVE, SUITE 208Chicago, IL 60610-7010
Mailing Address711 W North Ave, Suite 208Chicago, IL 60610-1174 · (773) 616-7778 · Fax (312) 276-4304
Phone(312) 616-7778
Fax(312) 276-4304
Organization SubpartNo
Authorized OfficialBalakrishnan NatarajanPresident · (312) 616-7778
Enumeration DateMay 29, 2007
Last NPPES UpdateFebruary 19, 20162 updates tracked since enumeration
✔ NPI 1437350592 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036101773
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.
Also ListedInternal Medicine · Sports MedicineTaxonomy 207RS0010X · License 036101773 (IL)
711 W NORTH AVE, Chicago, IL 60610
Open in Google Maps ↗

Other Identifiers 4

Medicaid036101773IL
Medicare UPINH29183IL
Medicare ID-Type Unspecified205583IL
Other01633302IL · Blue Cross Blue Shield

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Balu Natarajan Md Sc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Balu Natarajan MD Sc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Balakrishnan Natarajan, MD
Sports Medicine
NPI 1295799013
606 POTTER RD
Des Plaines, IL 60016
(847) 759-9449
✔ PECOS✔ Accepts Medicare14 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Balu Natarajan MD Sc's NPI number?

The NPI number for Balu Natarajan MD Sc is 1437350592. It was assigned to this organization in the NPPES registry on May 29, 2007.

Where is Balu Natarajan MD Sc located?

Balu Natarajan MD Sc is located at 711 W North Ave Suite 208, Chicago, IL 60610. The listed phone number is (312) 616-7778.

What is Balu Natarajan MD Sc's specialty?

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

Is Balu Natarajan MD Sc enrolled in Medicare?

Yes. Balu Natarajan MD Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Balu Natarajan MD Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Sports Medicine) reassigns their Medicare billing to Balu Natarajan MD Sc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Balu Natarajan MD Sc was last updated on February 19, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.