What is Mark Justice's NPI number?

Mark Justice's National Provider Identifier (NPI) is 1720819550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Justice's specialty?

Mark Justice is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).

Where is Mark Justice located?

Mark Justice's practice location on file with NPPES is 865 S Patterson Blvd, Dayton, OH 45402-2624.

What is Mark Justice's phone number?

The practice phone number listed in the NPPES registry for Mark Justice is (935) 966-4673.

Is Mark Justice's NPI active?

Yes — Mark Justice's NPI (1720819550) is active in the NPPES registry as of the last update on 2026-03-27.

IndividualActive

Mark Justice

NPI 1720819550 · Addiction (Substance Use Disorder) Counselor · Dayton, OH

Mark Justice is a Addiction (Substance Use Disorder) Counselor provider in Dayton, OH (NPI 1720819550).

Provider details

NPI number: 1720819550
Entity type: Individual
Primary specialty: Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Addiction (Substance Use Disorder) CounselorPrimary101YA0400XLicense CDCA.188849 (OH)
Behavioral Health & Social Service Providers
Case Manager/Care Coordinator171M00000X
Other Service Providers

Profile Score

Established profile(54/100 index)

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
2 documented practice locations

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

865 S Patterson Blvd

Dayton, OH 45402-2624

Phone: (935) 966-4673

Street-level locationGet directions

More OH providers

Mailing address

100 Crowne Point Pl

Cincinnati, OH 45241-5427

Additional practice locations (1)

2960 W Enon Rd
Xenia, OH 45385-8548
Phone: (937) 272-4925

Enumerated: 2024-08-13
Last updated: 2026-03-27
Certified: 2026-03-27

Frequently asked questions

What is Mark Justice's NPI number?: Mark Justice's National Provider Identifier (NPI) is 1720819550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mark Justice's specialty?: Mark Justice is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
Where is Mark Justice located?: Mark Justice's practice location on file with NPPES is 865 S Patterson Blvd, Dayton, OH 45402-2624.
What is Mark Justice's phone number?: The practice phone number listed in the NPPES registry for Mark Justice is (935) 966-4673.
Is Mark Justice's NPI active?: Yes — Mark Justice's NPI (1720819550) is active in the NPPES registry as of the last update on 2026-03-27.

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