Gregory Mason
NPI 1184081994 · Addiction (Substance Use Disorder) Counselor · Greenville, SC
Gregory Mason is a Addiction (Substance Use Disorder) Counselor provider in Greenville, SC (NPI 1184081994).
Provider details
- NPI number
- 1184081994
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
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
83% 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
- 2016-01-25
- Last updated
- 2016-01-25
Frequently asked questions
- What is Gregory Mason's NPI number?
- Gregory Mason's National Provider Identifier (NPI) is 1184081994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Mason's specialty?
- Gregory Mason is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Gregory Mason located?
- Gregory Mason's practice location on file with NPPES is 1400 Cleveland St, Greenville, SC 29607-2410.
- What is Gregory Mason's phone number?
- The practice phone number listed in the NPPES registry for Gregory Mason is (864) 467-3790.
- Is Gregory Mason's NPI active?
- Yes — Gregory Mason's NPI (1184081994) is active in the NPPES registry as of the last update on 2016-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.