Quick answers
- Where does Jack Marchalewicz see patients?
- Medicare's clinician data lists 1 practice location in Northborough, MA. Call before your visit to confirm the address.
- What is Jack Marchalewicz's specialty?
- Medicare lists Chiropractic as the primary specialty.
- Does Jack Marchalewicz accept Medicare assignment?
- Yes. Medicare's clinician data says Jack Marchalewicz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Jack Marchalewicz?
- (508) 393-7177, as listed in official Medicare / NPI Registry data.
- What is Jack Marchalewicz's NPI number?
- 1407011240. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jack Marchalewicz is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 Main St, Unit DNorthborough, MA 01532 (508) 393‑7177
Specialties
- Chiropracticprimary
Other chiropractors in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407011240 |
| 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 2026-10-02, retrieved 2026-10-29
- 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