DR. MOHAMMAD USMAN AHMAD MD
NPI 1003377938
General Practice in Chicago, IL

Q: What is Mohammad Ahmad's NPI number?

The NPI number for Mohammad Ahmad is 1003377938. It was assigned to this individual provider in the NPPES registry on March 25, 2019.

Q: What is Mohammad Ahmad's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Q: When was this NPI record last updated?

The NPPES record for Mohammad Ahmad was last updated on April 8, 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.

Active since March 25, 2019PECOS Enrolled

4559 S MICHIGAN AVE UNIT 2N, CHICAGO, IL 60653(708) 769-8230 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 8, 2026, Mar 9, 2022, Jan 26, 2022 and 1 more (4 updates tracked since 2020).

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About Dr. Mohammad Usman Ahmad Md NPPES

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

DR. MOHAMMAD USMAN AHMAD MD (NPI 1003377938) is an individual general practice provider in Chicago, Illinois, licensed in Illinois (036161603) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1003377938

Entity TypeIndividualMale

Primary Taxonomy208D00000X

Provider Legal NameDR. MOHAMMAD USMAN AHMADCredential: MD

Location Address4559 S MICHIGAN AVE UNIT 2NChicago, IL 60653-4073

Mailing Address222 N Franklin St Apt 302Janesville, WI 53548-2987 · (708) 769-8230

Phone(708) 769-8230

Sole ProprietorNo

Enumeration DateMarch 25, 2019

Last NPPES UpdateApril 8, 20264 updates tracked since enumeration

NPPES CertifiedApril 8, 2026

✔ NPI 1003377938 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians

Taxonomy Code208D00000X

Licenses✔ Licensed in IL · 036161603✔ Licensed in CO · DR.0066109

Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

4559 S MICHIGAN AVE UNIT 2N, Chicago, IL 60653

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Secondary Practice Locations 2

Location 17900 E Union Ave Ste 1100Denver, CO 80237-2746 · Phone (866) 477-1169

Location 2300 Pasteur Dr Rm H3591Stanford, CA 94305-2200 · Phone (650) 725-2181

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mohammad Usman Ahmad Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Mohammad Ahmad reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Signify Health Medical Associates, PLLC

795 mi

General Practice

4055 VALLEY VIEW LN STE 700
Dallas, TX 75244

Reassigned Medicare billing, Colorado and Illinois enrollments
290 clinicians in this Medicare group

NPI 1750845863 (972) 715-3800

Signify Health Medical Associates Of California, PC

1,859 mi

General Practice

505 MONTGOMERY ST, FL 10 & 11
San Francisco, CA 94111

Reassigned Medicare billing, California enrollment
407 clinicians in this Medicare group

NPI 1124685169 (972) 715-3800

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 Mohammad Ahmad's NPI number?

The NPI number for Mohammad Ahmad is 1003377938. It was assigned to this individual provider in the NPPES registry on March 25, 2019.

Where is Mohammad Ahmad located?

Mohammad Ahmad practices at 4559 S Michigan Ave Unit 2N, Chicago, IL 60653. The listed phone number is (708) 769-8230.

What is Mohammad Ahmad's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Mohammad Ahmad enrolled in Medicare?

Yes. Mohammad Ahmad is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mohammad Ahmad's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mohammad Ahmad reassigns Medicare benefits to 2 organizations: Signify Health Medical Associates, PLLC (Dallas, TX) and Signify Health Medical Associates Of California, PC (San Francisco, CA). Each 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 Mohammad Ahmad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mohammad Ahmad was last updated on April 8, 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.