# MARYVALLEY HEALTH SERVICES PLLC

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- **Entity:** Organization
- **Status:** Active
- **Organization subpart:** No

## Provider details

- **NPI number:** 1477472611
- **Authorized official:** FRANS ADI TASSI PMHNP-BC (OWNER)
- **Authorized official phone:** (301) 433-3959

## Contact information

- **Practice address:** 1717 N ST NW STE 1, WASHINGTON, DC 20036-2827
- **Practice address phone:** (301) 433-3959
- **Mailing address:** 2508 DIDCOT CT \# A, BOWIE, MD 20721-2978
- **Mailing address phone:** (301) 433-3959

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner | — | NULL | Yes |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner | — | — | Yes |

## Other

- **Enumeration date:** 07/13/2026
- **Last updated:** 07/13/2026