Mark Nelson
NPI 1942954656 · Addiction (Substance Use Disorder) Counselor · Waco, TX
Mark Nelson is a Addiction (Substance Use Disorder) Counselor provider in Waco, TX (NPI 1942954656).
Provider details
- NPI number
- 1942954656
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 13419 (TX)
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
- 2022-02-10
- Last updated
- 2022-02-10
- Certified
- 2022-02-10
Frequently asked questions
- What is Mark Nelson's NPI number?
- Mark Nelson's National Provider Identifier (NPI) is 1942954656, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Nelson's specialty?
- Mark Nelson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Nelson located?
- Mark Nelson's practice location on file with NPPES is 2220 Austin Ave, Waco, TX 76701-1625.
- What is Mark Nelson's phone number?
- The practice phone number listed in the NPPES registry for Mark Nelson is (254) 752-3451.
- Is Mark Nelson's NPI active?
- Yes — Mark Nelson's NPI (1942954656) is active in the NPPES registry as of the last update on 2022-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.