What is Mark Johnson's NPI number?

Mark Johnson's National Provider Identifier (NPI) is 1609463801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Johnson's specialty?

Mark Johnson is listed in the NPPES registry with a primary specialty of Intellectual & Developmental Disabilities Psychologist (Behavioral Health & Social Service Providers).

Where is Mark Johnson located?

Mark Johnson's practice location on file with NPPES is 5626 Cresthaven Ln, Toledo, OH 43614-1241.

What is Mark Johnson's phone number?

The practice phone number listed in the NPPES registry for Mark Johnson is (419) 810-4375.

Is Mark Johnson's NPI active?

Yes — Mark Johnson's NPI (1609463801) is active in the NPPES registry as of the last update on 2020-12-22.

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Mark Johnson

NPI 1609463801 · Intellectual & Developmental Disabilities Psychologist · Toledo, OH

Mark Johnson is a Intellectual & Developmental Disabilities Psychologist provider in Toledo, OH (NPI 1609463801).

Provider details

NPI number: 1609463801
Entity type: Individual
Primary specialty: Intellectual & Developmental Disabilities PsychologistBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: Yes
License: 8702313 (OH)

Practice location

5626 Cresthaven Ln

Toledo, OH 43614-1241

Phone: (419) 810-4375

Street-level locationGet directions

More OH providers

Mailing address

5626 Cresthaven Ln

Toledo, OH 43614-1241

Specialties & taxonomies

Intellectual & Developmental Disabilities PsychologistPrimary103TM1800XLicense 8702313 (OH)
Behavioral Health & Social Service Providers

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
5 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.

Enumerated: 2020-12-22
Last updated: 2020-12-22
Certified: 2020-12-22

Frequently asked questions

What is Mark Johnson's NPI number?: Mark Johnson's National Provider Identifier (NPI) is 1609463801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mark Johnson's specialty?: Mark Johnson is listed in the NPPES registry with a primary specialty of Intellectual & Developmental Disabilities Psychologist (Behavioral Health & Social Service Providers).
Where is Mark Johnson located?: Mark Johnson's practice location on file with NPPES is 5626 Cresthaven Ln, Toledo, OH 43614-1241.
What is Mark Johnson's phone number?: The practice phone number listed in the NPPES registry for Mark Johnson is (419) 810-4375.
Is Mark Johnson's NPI active?: Yes — Mark Johnson's NPI (1609463801) is active in the NPPES registry as of the last update on 2020-12-22.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions