Mark Preston
NPI 1124845789 · Addiction (Substance Use Disorder) Counselor · Seattle, WA
Mark Preston is a Addiction (Substance Use Disorder) Counselor provider in Seattle, WA (NPI 1124845789).
Provider details
- NPI number
- 1124845789
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
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
- 2024-09-25
- Last updated
- 2024-09-25
- Certified
- 2024-09-24
Frequently asked questions
- What is Mark Preston's NPI number?
- Mark Preston's National Provider Identifier (NPI) is 1124845789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Preston's specialty?
- Mark Preston is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Preston located?
- Mark Preston's practice location on file with NPPES is 2313 3rd Ave, Seattle, WA 98121-1711.
- What is Mark Preston's phone number?
- The practice phone number listed in the NPPES registry for Mark Preston is (206) 256-9865.
- Is Mark Preston's NPI active?
- Yes — Mark Preston's NPI (1124845789) is active in the NPPES registry as of the last update on 2024-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.