Quick answers
- Does Brittany K. Hennigan accept Medicare assignment?
- Medicare's clinician data says Brittany K. Hennigan may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Brittany K. Hennigan see?
- In 2024, CMS data shows 12 Original Medicare patients and 123 services for Brittany K. Hennigan. This counts Original Medicare only and measures volume, not quality.
- What is Brittany K. Hennigan's NPI number?
- 1790223543. 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 Brittany K. Hennigan, 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 | 12 |
|---|---|
| Services billed to Medicare | 123 |
| Different services or procedures | 1 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)123 services
Practice locations
Addresses where Brittany K. Hennigan is enrolled with Medicare (CMS data updated October 2, 2026).
- 11001 S Kedzie AveChicago, IL 60655 (773) 239‑7777
Group practices
Medicare enrollment lists Brittany K. Hennigan as a member of this group (CMS data updated October 2, 2026).
- Greenwood Spine Care PLLC3 clinicians in the group
Specialties
- Chiropracticprimary
Other chiropractors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Greenwood Spine Care PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1790223543 |
| 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