Jack Marchalewicz, D.C.
NPI 1407011240 · Chiropractor · Northborough, MA
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Marchalewicz, D.C. is a Chiropractor provider in Northborough, MA (NPI 1407011240).
Provider details
- NPI number
- 1407011240
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3198 (MA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-21
- Last updated
- 2017-03-01
Frequently asked questions
- What is Jack Marchalewicz's NPI number?
- Jack Marchalewicz's National Provider Identifier (NPI) is 1407011240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Marchalewicz's specialty?
- Jack Marchalewicz is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Jack Marchalewicz located?
- Jack Marchalewicz's practice location on file with NPPES is 130 Main St, Northborough, MA 01532.
- What is Jack Marchalewicz's phone number?
- The practice phone number listed in the NPPES registry for Jack Marchalewicz is (508) 393-7177.
- Does Jack Marchalewicz accept Medicare?
- Jack Marchalewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Marchalewicz's NPI active?
- Yes — Jack Marchalewicz's NPI (1407011240) is active in the NPPES registry as of the last update on 2017-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.