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Mariella Harris
NPI 1740112580 · Mental Health Counselor · Lanham, MD
Mariella Harris is a Mental Health Counselor provider in Lanham, MD (NPI 1740112580).
Provider details
- NPI number
- 1740112580
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(46/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
9301 Annapolis Rd
Lanham, MD 20706-3115
Phone: (240) 296-6300
Street-level locationGet directions
Mailing address
6400 Brick House Ter
Bowie, MD 20720-3387
Registry dates
- Enumerated
- 2026-06-03
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is Mariella Harris's NPI number?
- Mariella Harris's National Provider Identifier (NPI) is 1740112580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariella Harris's specialty?
- Mariella Harris is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mariella Harris located?
- Mariella Harris's practice location on file with NPPES is 9301 Annapolis Rd, Lanham, MD 20706-3115.
- What is Mariella Harris's phone number?
- The practice phone number listed in the NPPES registry for Mariella Harris is (240) 296-6300.
- Is Mariella Harris's NPI active?
- Yes — Mariella Harris's NPI (1740112580) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.