Melissa Duncan
NPI 1447671904 · Addiction (Substance Use Disorder) Counselor · Rock Hill, SC
Melissa Duncan is a Addiction (Substance Use Disorder) Counselor provider in Rock Hill, SC (NPI 1447671904).
Provider details
- NPI number
- 1447671904
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- 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
12 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
- 2013-12-30
- Last updated
- 2013-12-30
Frequently asked questions
- What is Melissa Duncan's NPI number?
- Melissa Duncan's National Provider Identifier (NPI) is 1447671904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Duncan's specialty?
- Melissa Duncan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Melissa Duncan located?
- Melissa Duncan's practice location on file with NPPES is 199 S Herlong Ave, Rock Hill, SC 29732-1186.
- What is Melissa Duncan's phone number?
- The practice phone number listed in the NPPES registry for Melissa Duncan is (803) 324-1800.
- Is Melissa Duncan's NPI active?
- Yes — Melissa Duncan's NPI (1447671904) is active in the NPPES registry as of the last update on 2013-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.