Mark Chapman
NPI 1821834557 · Addiction (Substance Use Disorder) Counselor · Columbus, OH
Mark Chapman is a Addiction (Substance Use Disorder) Counselor provider in Columbus, OH (NPI 1821834557).
Provider details
- NPI number
- 1821834557
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- CDCA.189037 (OH)
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
1 yr 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
- 2024-07-02
- Last updated
- 2024-07-02
- Certified
- 2024-07-02
Frequently asked questions
- What is Mark Chapman's NPI number?
- Mark Chapman's National Provider Identifier (NPI) is 1821834557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Chapman's specialty?
- Mark Chapman is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Chapman located?
- Mark Chapman's practice location on file with NPPES is 3121 W Broad St, Columbus, OH 43204-1306.
- What is Mark Chapman's phone number?
- The practice phone number listed in the NPPES registry for Mark Chapman is (614) 869-2002.
- Is Mark Chapman's NPI active?
- Yes — Mark Chapman's NPI (1821834557) is active in the NPPES registry as of the last update on 2024-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.