Mark Harrison, MSW
NPI 1881026755 · Clinical Social Worker · Madison, AL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Harrison, MSW is a Clinical Social Worker provider in Madison, AL (NPI 1881026755).
Provider details
- NPI number
- 1881026755
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
12 yrs 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
Mailing address
Additional practice locations (1)
- 425 5th Ave NwAttalla, AL 35954-2214Phone: (256) 492-7800Fax: (256) 494-5536
Registry dates
- Enumerated
- 2013-08-02
- Last updated
- 2021-05-12
- Certified
- 2021-05-12
Frequently asked questions
- What is Mark Harrison's NPI number?
- Mark Harrison's National Provider Identifier (NPI) is 1881026755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Harrison's specialty?
- Mark Harrison is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Harrison located?
- Mark Harrison's practice location on file with NPPES is 600 Sun Temple Dr, Madison, AL 35758-8643.
- What is Mark Harrison's phone number?
- The practice phone number listed in the NPPES registry for Mark Harrison is (256) 288-3333.
- Does Mark Harrison accept Medicare?
- Mark Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Harrison's NPI active?
- Yes — Mark Harrison's NPI (1881026755) is active in the NPPES registry as of the last update on 2021-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.