John Mcgahan
NPI 1225542582 · Addiction (Substance Use Disorder) Counselor · Quincy, MA
John Mcgahan is a Addiction (Substance Use Disorder) Counselor provider in Quincy, MA (NPI 1225542582).
Provider details
- NPI number
- 1225542582
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 321 (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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 675 E 4th StBoston, MA 02127-3063Phone: (857) 496-7341
Registry dates
- Enumerated
- 2017-11-24
- Last updated
- 2018-03-17
Frequently asked questions
- What is John Mcgahan's NPI number?
- John Mcgahan's National Provider Identifier (NPI) is 1225542582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mcgahan's specialty?
- John Mcgahan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is John Mcgahan located?
- John Mcgahan's practice location on file with NPPES is 43 Old Colony Ave, Quincy, MA 02170-2606.
- What is John Mcgahan's phone number?
- The practice phone number listed in the NPPES registry for John Mcgahan is (857) 496-7341.
- Is John Mcgahan's NPI active?
- Yes — John Mcgahan's NPI (1225542582) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.