Healthcare Provider Details

I. General information

NPI: 1477472611
Provider Name (Legal Business Name): MARYVALLEY HEALTH SERVICES PLLC
Entity Type: Organization
Gender:
Sole Proprietor:

II. Dates (important events)

Enumeration Date: 07/13/2026
Last Update Date: 07/13/2026
Certification Date: 07/13/2026
Deactivation Date:
Reactivation Date:

III. Provider practice location address

1717 N ST NW STE 1
WASHINGTON DC
20036-2827
US

IV. Provider business mailing address

2508 DIDCOT CT # A
BOWIE MD
20721-2978
US

V. Phone/Fax

Practice location:
  • Phone: 301-433-3959
  • Fax:
Mailing address:
  • Phone: 301-433-3959
  • Fax:

VI. Provider taxonomy

Scope of Practice (Provider specialty)

# 1
Primary TaxonomyY
Taxonomy Code363LP0808X
TaxonomyPsychiatric/Mental Health Nurse Practitioner
License Number
License Number State

VIII. Authorized Official

Name: FRANS ADI TASSI
Title or Position: OWNER
Credential: PMHNP-BC
Phone: 301-433-3959