Michael Mastaj
NPI 1073957601 · Physical Therapist · Sparta, NJ
Michael Mastaj is a Physical Therapist provider in Sparta, NJ (NPI 1073957601).
Provider details
- NPI number
- 1073957601
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 40QA01492700 (NJ)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
- 2013-04-25
- Last updated
- 2013-04-25
Frequently asked questions
- What is Michael Mastaj's NPI number?
- Michael Mastaj's National Provider Identifier (NPI) is 1073957601, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Mastaj's specialty?
- Michael Mastaj is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Michael Mastaj located?
- Michael Mastaj's practice location on file with NPPES is 13a Main St, Sparta, NJ 07871-1941.
- What is Michael Mastaj's phone number?
- The practice phone number listed in the NPPES registry for Michael Mastaj is (973) 726-7400.
- Is Michael Mastaj's NPI active?
- Yes — Michael Mastaj's NPI (1073957601) is active in the NPPES registry as of the last update on 2013-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.