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ANNA MARR WILLIS
NPI 1740121029
Emergency Medicine in Chicago, IL

Active since April 02, 2026PECOS Enrolled
5841 S MARYLAND AVE OFC 5068, CHICAGO, IL 60637(773) 702-9500 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Apr 14, 2026, Apr 2, 2026 (2 updates tracked since 2026).

About Anna Marr Willis NPPES

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

ANNA MARR WILLIS (NPI 1740121029) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (125087202) and active in the NPI registry since April 2026. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740121029
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameANNA MARR WILLIS
Location Address5841 S MARYLAND AVE OFC 5068Chicago, IL 60637-1443
Mailing Address180 Harvester Dr Ste 110Burr Ridge, IL 60527-6686 · (773) 702-1150
Phone(773) 702-9500
Sole ProprietorYes
Enumeration DateApril 2, 2026
Last NPPES UpdateApril 14, 20262 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1740121029 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IL · 125087202
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
5841 S MARYLAND AVE OFC 5068, Chicago, IL 60637
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Other Names 1

Former Name (1)Anna Terese Marr

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anna Marr Willis 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 60637 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
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.

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 Anna Willis's NPI number?

The NPI number for Anna Willis is 1740121029. It was assigned to this individual provider in the NPPES registry on April 2, 2026. The provider is also known as Anna Terese Marr.

Where is Anna Willis located?

Anna Willis practices at 5841 S Maryland Ave Ofc 5068, Chicago, IL 60637. The listed phone number is (773) 702-9500.

What is Anna Willis's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Anna Willis enrolled in Medicare?

Yes. Anna Willis is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Anna Willis was last updated on April 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.