Marc Welch
NPI 1700559507 · Addiction (Substance Use Disorder) Counselor · Xenia, OH
Marc Welch is a Addiction (Substance Use Disorder) Counselor provider in Xenia, OH (NPI 1700559507).
Provider details
- NPI number
- 1700559507
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- CDCA176828 (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
4 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
- 2021-07-28
- Last updated
- 2021-08-05
- Certified
- 2021-08-05
Frequently asked questions
- What is Marc Welch's NPI number?
- Marc Welch's National Provider Identifier (NPI) is 1700559507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Welch's specialty?
- Marc Welch is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marc Welch located?
- Marc Welch's practice location on file with NPPES is 452 W Market St, Xenia, OH 45385-2815.
- What is Marc Welch's phone number?
- The practice phone number listed in the NPPES registry for Marc Welch is (937) 376-8700.
- Is Marc Welch's NPI active?
- Yes — Marc Welch's NPI (1700559507) is active in the NPPES registry as of the last update on 2021-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.