Quick answers
- Does Cleo S. Riffey accept Medicare assignment?
- Medicare's clinician data says Cleo S. Riffey may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Cleo S. Riffey see?
- In 2024, CMS data shows 73 Original Medicare patients and 352 services for Cleo S. Riffey. This counts Original Medicare only and measures volume, not quality.
- What is Cleo S. Riffey's NPI number?
- 1184632580. 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 Cleo S. Riffey, 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 | 73 |
|---|---|
| Services billed to Medicare | 352 |
| Different services or procedures | 1 |
| Participating Medicare provider | No |
| Average age of these patients | 76 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)352 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 cholesterol70%
- High blood pressure55%
- Arthritis49%
- Chronic kidney disease26%
- Atrial fibrillation25%
- Ischemic heart disease22%
Practice locations
Addresses where Cleo S. Riffey is enrolled with Medicare (CMS data updated October 2, 2026).
- 6630 Sierra College Blvd, Suite 300Rocklin, CA 95677 (916) 783‑9470
Group practices
Medicare enrollment lists Cleo S. Riffey as a member of this group (CMS data updated October 2, 2026).
- Riffey Chiropractic Inc2 clinicians in the group
Specialties
- Chiropracticprimary
Other chiropractors in Rocklin
Clinicians with the same Medicare primary specialty in Rocklin, CA — not a recommendation.
Other clinicians in Riffey Chiropractic Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DC |
|---|---|
| Graduation year | 1976 (50 years since chiropractic college) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1184632580 |
| 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