AMMAR ASIF AHMED MD
NPI 1821619388
Internal Medicine - Sleep Medicine in Chicago, IL

Active since May 06, 2020PECOS Enrolled
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET SUITE 100, MC 675, CHICAGO, IL 60612(312) 996-2933 Get Directions Write a Review

NPPES record last updated: July 10, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 10, 2025, Jun 26, 2025, May 6, 2020 (3 updates tracked since 2020).

About Ammar Asif Ahmed Md NPPES

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

AMMAR ASIF AHMED MD (NPI 1821619388) is an individual sleep medicine provider in Chicago, Illinois, licensed in Illinois (036.164185) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821619388
Entity TypeIndividualMale
Primary Taxonomy207RS0012X
Provider Legal NameAMMAR ASIF AHMEDCredential: MD
Location AddressUI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET SUITE 100, MC 675Chicago, IL 60612
Mailing AddressUi Health, Graduate Medical Education Office, 820 South Wood Street Suite 100, Mc 675Chicago, IL 60612 · (312) 996-2933
Sole ProprietorNo
Enumeration DateMay 6, 2020
Last NPPES UpdateJuly 10, 20253 updates tracked since enumeration
NPPES CertifiedJune 26, 2025
NPI 1821619388 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License Licensed in IL · 036.164185
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Also ListedInternal MedicineTaxonomy 207R00000X · License 125.076205 (IL)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 036.164185 (IL)
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, Chicago, IL 60612

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Ammar Asif Ahmed 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Student in an Organized Health Care Education/Training Program
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET SUITE 100, MC 675
CHICAGO, IL 60612
Student in an Organized Health Care Education/Training Program
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET SUITE 100, MC 675
CHICAGO, IL 60612
Student in an Organized Health Care Education/Training Program
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET, SUITE 100, MC 675
CHICAGO, IL 60612
Dermatology
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET. SUITE 100, MC 675
CHICAGO, IL 60612
Student in an Organized Health Care Education/Training Program
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET SUITE 100, MC 675
CHICAGO, IL 60612
Internal Medicine (Geriatric Medicine)
UI HEALTH, GRADUATE MEDICAL EDUCATION OFFICE, 820 SOUTH WOOD STREET, SUITE 100, MC 675
CHICAGO, IL 60612

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 Ammar Ahmed's NPI number?

The NPI number for Ammar Ahmed is 1821619388. It was assigned to this individual provider in the NPPES registry on May 6, 2020.

Where is Ammar Ahmed located?

Ammar Ahmed practices at Ui Health, Graduate Medical Education Office 820 South Wood Street Suite 100, Mc 675, Chicago, IL 60612. The listed phone number is (312) 996-2933.

What is Ammar Ahmed's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Ammar Ahmed enrolled in Medicare?

Yes. Ammar Ahmed is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ammar Ahmed was last updated on July 10, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.