John Holbrook
NPI 1790551638 · Addiction (Substance Use Disorder) Counselor · Fremont, OH
John Holbrook is a Addiction (Substance Use Disorder) Counselor provider in Fremont, OH (NPI 1790551638).
Provider details
- NPI number
- 1790551638
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- CDCA.182989 (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
2 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
- 2023-12-01
- Last updated
- 2023-12-01
- Certified
- 2023-12-01
Frequently asked questions
- What is John Holbrook's NPI number?
- John Holbrook's National Provider Identifier (NPI) is 1790551638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Holbrook's specialty?
- John Holbrook is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is John Holbrook located?
- John Holbrook's practice location on file with NPPES is 2575 Hayes Ave, Fremont, OH 43420-5201.
- What is John Holbrook's phone number?
- The practice phone number listed in the NPPES registry for John Holbrook is (567) 280-9435.
- Is John Holbrook's NPI active?
- Yes — John Holbrook's NPI (1790551638) is active in the NPPES registry as of the last update on 2023-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.