Quick answers
- Does John F. McCarthy Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John F. McCarthy 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 John F. McCarthy Jr. see?
- In 2024, CMS data shows 41 Original Medicare patients and 404 services for John F. McCarthy Jr.. This counts Original Medicare only and measures volume, not quality.
- What is John F. McCarthy Jr.'s NPI number?
- 1629596549. 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 John F. McCarthy 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 | 41 |
|---|---|
| Services billed to Medicare | 404 |
| Different services or procedures | 1 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)404 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 cholesterol59%
- High blood pressure51%
- Arthritis49%
- Anxiety32%
Practice locations
Addresses where John F. McCarthy Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 71 Holland StSomerville, MA 02144 (617) 625‑8707
Group practices
Medicare enrollment lists John F. McCarthy Jr. as a member of this group (CMS data updated October 2, 2026).
- Davis Square Chiropractic, PC6 clinicians in the group
Specialties
- Chiropracticprimary
Other chiropractors in Somerville
Clinicians with the same Medicare primary specialty in Somerville, MA — not a recommendation.
Other clinicians in Davis Square Chiropractic, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| School | Life Chiropractic College - West |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629596549 |
| 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