Christopher Nielsen, RADT1
NPI 1689404576 · Addiction (Substance Use Disorder) Counselor · King City, CA
Christopher Nielsen, RADT1 is a Addiction (Substance Use Disorder) Counselor provider in King City, CA (NPI 1689404576).
Provider details
- NPI number
- 1689404576
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RADT1
- 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
- 2024-08-05
- Last updated
- 2025-05-01
- Certified
- 2025-05-01
Frequently asked questions
- What is Christopher Nielsen's NPI number?
- Christopher Nielsen's National Provider Identifier (NPI) is 1689404576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Nielsen's specialty?
- Christopher Nielsen is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Christopher Nielsen located?
- Christopher Nielsen's practice location on file with NPPES is 641 Broadway St, King City, CA 93930-3231.
- What is Christopher Nielsen's phone number?
- The practice phone number listed in the NPPES registry for Christopher Nielsen is (831) 525-8181.
- Is Christopher Nielsen's NPI active?
- Yes — Christopher Nielsen's NPI (1689404576) is active in the NPPES registry as of the last update on 2025-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.