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MERCY MEDICAL GROUP SC INC
NPI 1669265948
Internal Medicine in Chicago, IL

Active since May 28, 2025
2320 W PETERSON AVE, CHICAGO, IL 60659(773) 565-4561 Get Directions Write a Review

NPPES record last updated: April 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 21, 2026, May 28, 2025 (2 updates tracked since 2025).

About Mercy Medical Group Sc Inc NPPES

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

MERCY MEDICAL GROUP SC INC (NPI 1669265948) is a healthcare organization registered as an internal medicine in Chicago, Illinois and active in the NPI registry since May 2025. The organization maintains a secondary practice location in Chicago and lists Mohammed Ahsan, Owner, as its authorized official.

NPPES Registry Identity

NPI1669265948
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMERCY MEDICAL GROUP SC INC
Location Address2320 W PETERSON AVEChicago, IL 60659-5242
Mailing Address2446 W Devon AveChicago, IL 60659-1913
Phone(773) 565-4561
Organization SubpartNo
Authorized OfficialMohammed AhsanOwner · (773) 565-4561
Enumeration DateMay 28, 2025
Last NPPES UpdateApril 21, 20262 updates tracked since enumeration
NPPES CertifiedApril 21, 2026
✔ NPI 1669265948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
2320 W PETERSON AVE, Chicago, IL 60659
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Secondary Practice Location 1

Location 1701 S Pulaski RdChicago, IL 60624-3653 · Phone (773) 565-4561

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Mercy Medical Group Sc Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Mercy Medical Group Sc Inc, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Mohammed Shabbir, M.D.
Hospitalist
NPI 1073551594
900 JORIE BLVD SUITE 186
Oak Brook, IL 60523
(630) 954-6700
✔ PECOS✔ Accepts Medicare17 mi
Muhammad Ali, MD
General Practice
NPI 1508898362
200 WATERFORD DR
Willowbrook, IL 60527
(855) 554-2545
✔ PECOS✔ Accepts Medicare20 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 Mercy Medical Group Sc Inc's NPI number?

The NPI number for Mercy Medical Group Sc Inc is 1669265948. It was assigned to this organization in the NPPES registry on May 28, 2025.

Where is Mercy Medical Group Sc Inc located?

Mercy Medical Group Sc Inc is located at 2320 W Peterson Ave, Chicago, IL 60659. The listed phone number is (773) 565-4561.

What is Mercy Medical Group Sc Inc's specialty?

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

Is Mercy Medical Group Sc Inc enrolled in Medicare?

Yes. Mercy Medical Group Sc Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mercy Medical Group Sc Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Mercy Medical Group Sc Inc, in General Practice and Hospitalist. 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 Mercy Medical Group Sc Inc was last updated on April 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.