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MARA GRACE DOWNING MD
NPI 1003756461
Student in an Organized Health Care Education/Training Program in O Fallon, IL

Active since March 28, 2026PECOS Enrolled
3 SAINT ELIZABETH BLVD STE 4000, O FALLON, IL 62269(618) 233-5480(184) 445-8791 Get Directions Write a Review

NPPES record last updated: March 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mara Grace Downing Md NPPES

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

MARA GRACE DOWNING MD (NPI 1003756461) is an individual student in an organized health care education/training program in O Fallon, Illinois and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003756461
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameMARA GRACE DOWNINGCredential: MD
Location Address3 SAINT ELIZABETH BLVD STE 4000O Fallon, IL 62269-1284
Mailing Address3 Saint Elizabeth Blvd Ste 4000O Fallon, IL 62269-1284 · (618) 233-5480 · Fax (184) 445-8791
Phone(618) 233-5480
Fax(184) 445-8791
Sole ProprietorNo
Enumeration DateMarch 28, 2026
NPPES CertifiedMarch 28, 2026
✔ NPI 1003756461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
3 SAINT ELIZABETH BLVD STE 4000, O Fallon, IL 62269
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Other Names 1

Former Name (1)Mara Grace Keller

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mara Grace Downing 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.

Other Providers at the Same Location NPPES 20

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

DR. NOAH M COOPERSTEIN MD
Family Medicine
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 256-7311
DR. PATRICK BLOECHER MD
Family Medicine
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 233-7880
BENJAMIN F WOOD MD
Student in an Organized Health Care Education/Training Program
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 233-5480
SALSAPELA HIYTHAM SHABAN MD
Student in an Organized Health Care Education/Training Program
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 233-5480
MARIA OCHIAI
Student in an Organized Health Care Education/Training Program
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 256-9355
LUKE BRECHNER
Student in an Organized Health Care Education/Training Program
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 256-9355
ALEX BRANDON BELONGY
Student in an Organized Health Care Education/Training Program
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 256-9355
DR. JILL ELIZABETH COSTER DO
Family Medicine
3 SAINT ELIZABETH BLVD STE 4000
O FALLON, IL 62269
St. Clair County (618) 256-9355

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 Mara Downing's NPI number?

The NPI number for Mara Downing is 1003756461. It was assigned to this individual provider in the NPPES registry on March 28, 2026. The provider is also known as Mara Grace Keller.

Where is Mara Downing located?

Mara Downing practices at 3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL 62269. The listed phone number is (618) 233-5480.

What is Mara Downing's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Mara Downing enrolled in Medicare?

Yes. Mara Downing is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mara Downing was last updated on March 28, 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.