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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NATALIE GRACE MALTBY MD
NPI 1477136893
Family Medicine in Chicago, IL

Active since May 03, 2021PECOS Enrolled
4025 N WESTERN AVE, CHICAGO, IL 60618(773) 275-7700 Get Directions Write a Review

NPPES record last updated: October 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 5, 2026, Jun 21, 2023, May 3, 2021 (3 updates tracked since 2021).

About Natalie Grace Maltby Md NPPES

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

NATALIE GRACE MALTBY MD (NPI 1477136893) is an individual family medicine provider in Chicago, Illinois, licensed in Illinois (036.177177) and active in the NPI registry since May 2021. She is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (2023).

NPPES Registry Identity

NPI1477136893
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameNATALIE GRACE MALTBYCredential: MD
Location Address4025 N WESTERN AVEChicago, IL 60618-3726
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Phone(773) 275-7700
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 2023
Enumeration DateMay 3, 2021
Last NPPES UpdateOctober 5, 20263 updates tracked since enumeration
NPPES CertifiedOctober 5, 2026
✔ NPI 1477136893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036.177177
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4025 N WESTERN AVE, Chicago, IL 60618
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Natalie Grace Maltby Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1557821014
PECOS Enrollment IDI20260903001734
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 Reassignment

Medicare enrollment records show Natalie Maltby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Advocate Health And Hospitals Corp.
1.5 mi
Cardiovascular Disease
3118 N ASHLAND AVE
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1487951711 (773) 880-9722

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60618 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.

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.

PHILIP ROSEN M.D.
Ophthalmology
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700
BHARATHI SAMY M.D.
Obstetrics & Gynecology
4025 N WESTERN AVE, BLDG E.
CHICAGO, IL 60618
Cook County (773) 275-7700
DANUTA KOWALSKI M.D.
Internal Medicine
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700
DR. MIKE TAE SEOK KIM M.D.
Family Medicine
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700
LUCILA AVILA
Nurse Practitioner (Family)
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700
DR. DANIEL LEE GARRISON MD
Internal Medicine
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700
CONSTANCE RENEE MCFARLAND PA-C
Physician Assistant
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700
SHUANG ANNIE YAO M.D.
Family Medicine
4025 N WESTERN AVE
CHICAGO, IL 60618
Cook County (773) 275-7700

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 Natalie Maltby's NPI number?

The NPI number for Natalie Maltby is 1477136893. It was assigned to this individual provider in the NPPES registry on May 3, 2021.

Where is Natalie Maltby located?

Natalie Maltby practices at 4025 N Western Ave, Chicago, IL 60618. The listed phone number is (773) 275-7700.

What is Natalie Maltby's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Natalie Maltby enrolled in Medicare?

Yes. Natalie Maltby is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Natalie Maltby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Maltby reassigns Medicare benefits to Advocate Health And Hospitals Corp. (Chicago, IL). The 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 Natalie Maltby'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 Natalie Maltby was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.