Mark Melillo, MS, LCADC, RYT-200
NPI 1174978159 · Addiction (Substance Use Disorder) Counselor · Princeton, NJ
Mark Melillo, MS, LCADC, RYT-200 is a Addiction (Substance Use Disorder) Counselor provider in Princeton, NJ (NPI 1174978159).
Provider details
- NPI number
- 1174978159
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- MS, LCADC, RYT-200
- Sex
- Male
- Sole proprietor
- Yes
- License
- 37LC00252200 (NJ)
Specialties & taxonomies
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
10 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
- 2016-04-27
- Last updated
- 2017-01-13
Frequently asked questions
- What is Mark Melillo's NPI number?
- Mark Melillo's National Provider Identifier (NPI) is 1174978159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Melillo's specialty?
- Mark Melillo is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Melillo located?
- Mark Melillo's practice location on file with NPPES is 1 Monument Drive, Princeton, NJ 08540-4014.
- What is Mark Melillo's phone number?
- The practice phone number listed in the NPPES registry for Mark Melillo is (609) 924-8018.
- Is Mark Melillo's NPI active?
- Yes — Mark Melillo's NPI (1174978159) is active in the NPPES registry as of the last update on 2017-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.