Gerald Sullivan, LADC 1
NPI 1851844039 · Addiction (Substance Use Disorder) Counselor · Boston, MA
Gerald Sullivan, LADC 1 is a Addiction (Substance Use Disorder) Counselor provider in Boston, MA (NPI 1851844039).
Provider details
- NPI number
- 1851844039
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LADC 1
- Sex
- Male
- Sole proprietor
- No
- License
- 134 (MA)
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
9 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
- 2016-07-25
- Last updated
- 2016-07-25
Frequently asked questions
- What is Gerald Sullivan's NPI number?
- Gerald Sullivan's National Provider Identifier (NPI) is 1851844039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Sullivan's specialty?
- Gerald Sullivan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Gerald Sullivan located?
- Gerald Sullivan's practice location on file with NPPES is 8 Farnham St, Boston, MA 02119-2908.
- What is Gerald Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Gerald Sullivan is (617) 971-9360.
- Is Gerald Sullivan's NPI active?
- Yes — Gerald Sullivan's NPI (1851844039) is active in the NPPES registry as of the last update on 2016-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.