John Crook
NPI 1598223828 · Addiction (Substance Use Disorder) Counselor · Santa Fe Springs, CA
John Crook is a Addiction (Substance Use Disorder) Counselor provider in Santa Fe Springs, CA (NPI 1598223828).
Provider details
- NPI number
- 1598223828
- 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
7 yrs 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
- 2019-03-05
- Last updated
- 2019-03-11
Frequently asked questions
- What is John Crook's NPI number?
- John Crook's National Provider Identifier (NPI) is 1598223828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Crook's specialty?
- John Crook is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is John Crook located?
- John Crook's practice location on file with NPPES is 11015 Bloomfield Ave, Santa Fe Springs, CA 90670-4601.
- What is John Crook's phone number?
- The practice phone number listed in the NPPES registry for John Crook is (562) 906-2676.
- Is John Crook's NPI active?
- Yes — John Crook's NPI (1598223828) is active in the NPPES registry as of the last update on 2019-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.