Quick answers
- Does Arthur J. Chatellier Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Arthur J. Chatellier Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Arthur J. Chatellier Iii see?
- In 2024, CMS data shows 146 Original Medicare patients and 655 services for Arthur J. Chatellier Iii. This counts Original Medicare only and measures volume, not quality.
- What is Arthur J. Chatellier Iii's NPI number?
- 1649340720. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Arthur J. Chatellier Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 146 |
|---|---|
| Services billed to Medicare | 655 |
| Different services or procedures | 2 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)477 services
- Chiropractic manipulative treatment, 1-2 spinal regions (98940)178 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure68%
- Arthritis46%
- Diabetes25%
- Anxiety25%
- Ischemic heart disease23%
Practice locations
Addresses where Arthur J. Chatellier Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 650 N Peace Rd, Suite CDekalb, IL 60115
- 650 N Peace Rd CDekalb, IL 60115 (815) 748‑3102
Specialties
- Chiropracticprimary
Other chiropractors in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| School | Palmer College Chiropractic - Davenport |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649340720 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians