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PETHAM MUTHUSWAMY, M.D., SC
NPI 1801075429
Clinic/Center in Chicago, IL

Active since October 31, 2007
7531 S STONY ISLAND AVE, 169, CHICAGO, IL 60649(773) 947-7715(773) 643-0175 Get Directions Write a Review

NPPES record last updated: August 13, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Petham Muthuswamy, M.d., Sc NPPES

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

PETHAM MUTHUSWAMY, M.D., SC (NPI 1801075429) is a healthcare organization registered as a clinic/center in Chicago, Illinois and active in the NPI registry since October 2007. The organization lists Petham Muthuswamy, President, as its authorized official.

NPPES Registry Identity

NPI1801075429
Entity TypeOrganization
Primary Taxonomy261Q00000X
Legal Business NamePETHAM MUTHUSWAMY, M.D., SC
Location Address7531 S STONY ISLAND AVE, 169Chicago, IL 60649-3954
Mailing Address7531 S Stony Island Ave, 169Chicago, IL 60649-3954 · (773) 947-7715 · Fax (773) 643-0175
Phone(773) 947-7715
Fax(773) 643-0175
Organization SubpartNo
Authorized OfficialPetham MuthuswamyPresident · (773) 947-7715
Enumeration DateOctober 31, 2007
Last NPPES UpdateAugust 13, 2013
✔ NPI 1801075429 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities
Taxonomy Code261Q00000X
Definition
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).
7531 S STONY ISLAND AVE, Chicago, IL 60649
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Petham Muthuswamy, M.d., 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 Petham Muthuswamy, M.D., Sc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Petham Muthuswamy, M.D.
Pulmonary Disease
NPI 1205922770
7531 SOUTH STONY ISLAND SUITE 169
Chicago, IL 60649
(773) 947-7715
✔ PECOS✔ Accepts MedicareSame address

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 Petham Muthuswamy, M.D., Sc's NPI number?

The NPI number for Petham Muthuswamy, M.D., Sc is 1801075429. It was assigned to this organization in the NPPES registry on October 31, 2007.

Where is Petham Muthuswamy, M.D., Sc located?

Petham Muthuswamy, M.D., Sc is located at 7531 S Stony Island Ave 169, Chicago, IL 60649. The listed phone number is (773) 947-7715.

What is Petham Muthuswamy, M.D., Sc's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Is Petham Muthuswamy, M.D., Sc enrolled in Medicare?

Yes. Petham Muthuswamy, M.D., Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Petham Muthuswamy, M.D., Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Pulmonary Disease) reassigns their Medicare billing to Petham Muthuswamy, M.D., 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 Petham Muthuswamy, M.D., Sc was last updated on August 13, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.