Quick answers
- Does Richard D. Stone Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Richard D. Stone Jr. 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 Richard D. Stone Jr. see?
- In 2024, CMS data shows 81 Original Medicare patients and 1,033 services for Richard D. Stone Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Richard D. Stone Jr.'s NPI number?
- 1649372335. 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 Richard D. Stone Jr., 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 | 81 |
|---|---|
| Services billed to Medicare | 1,033 |
| Different services or procedures | 1 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)1,033 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).
- Arthritis75%
- High cholesterol68%
- High blood pressure63%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)21%
- Ischemic heart disease20%
- Anxiety19%
Practice locations
Addresses where Richard D. Stone Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 323 Boston Post Rd, Suite 2aSudbury, MA 01776 (978) 443‑4344
Group practices
Medicare enrollment lists Richard D. Stone Jr. as a member of this group (CMS data updated October 2, 2026).
- Union Chiropractic Inc2 clinicians in the group
Specialties
- Chiropracticprimary
Other chiropractors in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Other clinicians in Union Chiropractic Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DC |
|---|---|
| Chiropractic college | Palmer College Chiropractic - Davenport |
| Graduation year | 1997 (29 years since chiropractic college) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649372335 |
| 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