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DR. WILLIAM CHARLES MULLER
NPI 1063131423
Chiropractor in Downers Grove, IL

Active since August 26, 2022
2736 MAPLE AVE, DOWNERS GROVE, IL 60515(630) 963-0080(630) 963-0341 Get Directions Write a Review

NPPES record last updated: January 8, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William Charles Muller NPPES

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

DR. WILLIAM CHARLES MULLER (NPI 1063131423) is an individual chiropractor in Downers Grove, Illinois, licensed in Illinois (038.013902) and active in the NPI registry since August 2022.

NPPES Registry Identity

NPI1063131423
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. WILLIAM CHARLES MULLER
Location Address2736 MAPLE AVEDowners Grove, IL 60515-4201
Mailing Address202 E Oregon StUrbana, IL 61801-4240 · (203) 671-5259
Phone(630) 963-0080
Fax(630) 963-0341
Sole ProprietorNo
Enumeration DateAugust 26, 2022
Last NPPES UpdateJanuary 8, 2024
NPPES CertifiedJanuary 8, 2024
✔ NPI 1063131423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in IL · 038.013902
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
2736 MAPLE AVE, Downers Grove, IL 60515
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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)

Dr. William Charles Muller is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

3

Medicare enrollment records show William Muller reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Korwitts Chiropractic PC
Same address
Chiropractor
2736 MAPLE AVE
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 6 clinicians in this Medicare group
NPI 1952425084 (630) 963-0080
Muller Chiropractic PLLC
15 mi
Chiropractor
6602 BARRINGTON RD STE C
Hanover Park, IL 60133
  • Reassigned Medicare billing, Illinois enrollment
NPI 1033943782 (630) 483-7246
Mattoon Chiropractic LLC
160 mi
Chiropractor
905 REMINGTON RD
Mattoon, IL 61938
  • Reassigned Medicare billing, Illinois enrollment
  • 4 clinicians in this Medicare group
NPI 1841707726 (217) 342-7222

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

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.

DR. JOSEPH MICHAEL MURAGLIA JR. D.C
Chiropractor
2736 MAPLE AVE
DOWNERS GROVE, IL 60515
Dupage County (630) 963-0080
DR. VICTOR T KORWITTS DC
Chiropractor
2736 MAPLE AVE
DOWNERS GROVE, IL 60515
Dupage County (630) 963-0080
CONNOR FAGAN DC
Chiropractor
2736 MAPLE AVE
DOWNERS GROVE, IL 60515
Dupage County (630) 963-0080
DR. MICHAEL ANTHONY SCARDINA DC
Chiropractor
2736 MAPLE AVE
DOWNERS GROVE, IL 60515
Dupage County (630) 963-0080
AMY J POLIVKA FNP-C
Nurse Practitioner (Family)
2736 MAPLE AVE
DOWNERS GROVE, IL 60515
Dupage County (630) 963-0080
KORWITTS CHIROPRACTIC PC
Chiropractor
2736 MAPLE AVE
DOWNERS GROVE, IL 60515
Dupage County (630) 963-0080

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 William Muller's NPI number?

The NPI number for William Muller is 1063131423. It was assigned to this individual provider in the NPPES registry on August 26, 2022.

Where is William Muller located?

William Muller practices at 2736 Maple Ave, Downers Grove, IL 60515. The listed phone number is (630) 963-0080.

What is William Muller's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is William Muller enrolled in Medicare?

Yes. William Muller is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Muller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Muller reassigns Medicare benefits to 3 organizations: Korwitts Chiropractic PC (Downers Grove, IL), Muller Chiropractic PLLC (Hanover Park, IL) and Mattoon Chiropractic LLC (Mattoon, IL). 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 William Muller'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 William Muller was last updated on January 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.