James Mastrich, ED.D.
NPI 1649392671 · Addiction (Substance Use Disorder) Counselor · Kingston, NJ
James Mastrich, ED.D. is a Addiction (Substance Use Disorder) Counselor provider in Kingston, NJ (NPI 1649392671).
Provider details
- NPI number
- 1649392671
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- ED.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35SI00223800 (NJ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-04-03
- Last updated
- 2025-09-11
Frequently asked questions
- What is James Mastrich's NPI number?
- James Mastrich's National Provider Identifier (NPI) is 1649392671, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mastrich's specialty?
- James Mastrich is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is James Mastrich located?
- James Mastrich's practice location on file with NPPES is 4475 Route 27, Kingston, NJ 08528-9601.
- What is James Mastrich's phone number?
- The practice phone number listed in the NPPES registry for James Mastrich is (609) 921-3665.
- Is James Mastrich's NPI active?
- Yes — James Mastrich's NPI (1649392671) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.