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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARIELLA JEANETTE HARRIS
NPI 1740112580
Counselor - Mental Health in Lanham, MD

Active since June 03, 2026
9301 ANNAPOLIS RD, LANHAM, MD 20706(240) 296-6300 Get Directions Write a Review

NPPES record added: June 3, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Mariella Jeanette Harris NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIELLA JEANETTE HARRIS (NPI 1740112580) is an individual mental health provider in Lanham, Maryland and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1740112580
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMARIELLA JEANETTE HARRIS
Location Address9301 ANNAPOLIS RDLanham, MD 20706-3115
Mailing Address6400 Brick House TerBowie, MD 20720-3387
Phone(240) 296-6300
Sole ProprietorNo
Enumeration DateJune 3, 2026
NPPES CertifiedJune 3, 2026
✔ NPI 1740112580 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
9301 ANNAPOLIS RD, Lanham, MD 20706
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JASON MOLESWORTH
Counselor (Mental Health)
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (240) 296-6029
VESTA, INC.
Community/Behavioral Health
9301 ANNAPOLIS RD, SUITE 100
LANHAM, MD 20706
Prince George's County (240) 296-6300
JENEL MORIAN CRNP-PMH
Nurse Practitioner (Psychiatric/Mental Health)
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (240) 296-6060
DONYELL TAMIKA MATTHEWS
Social Worker
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (240) 296-6300
RANDOLPH M HOWARD
Case Manager/Care Coordinator
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (504) 259-5175
MARK JENKINS
Counselor (Mental Health)
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (240) 296-6300
LONDON THOMAS
Social Worker (Clinical)
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (240) 296-6300
JORDAN BARKSDALE
Rehabilitation Practitioner
9301 ANNAPOLIS RD
LANHAM, MD 20706
Prince George's County (240) 396-6300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mariella Harris's NPI number?

The NPI number for Mariella Harris is 1740112580. It was assigned to this individual provider in the NPPES registry on June 3, 2026.

Where is Mariella Harris located?

Mariella Harris practices at 9301 Annapolis Rd, Lanham, MD 20706. The listed phone number is (240) 296-6300.

What is Mariella Harris's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Mariella Harris was last updated on June 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.