William Diaz

Counselor

GenderMaleNPI1811464266Affiliated sites1

Affiliated Health Centers

William Diaz is affiliated with 1 federally qualified health center location.

ST. FRANCIS HOUSE

39 Boylston Street, Boston, MA 02116-4702

Mental Health & Behavioral Health Services

Counseling, therapy, and psychiatric care for depression, anxiety, trauma, and substance use — affordable and accessible.

Individual therapy

Group counseling

Substance use treatment

Psychiatric evaluation

Crisis intervention

Trauma-informed care

Medication management

Browse all Mental Health & Behavioral Health clinics →

Clinician information is sourced from the NPPES National Provider Registry (February 2026) and reflects self-reported practice locations. Individual providers may have joined or left since the last registry update.

Verify on NPI Registry

Confirm current license and practice information on the official CMS NPI registry.

View NPI Record

Counselor

Providing counselor services at federally qualified health centers with sliding fee scale options.

View services →

Browse

All clinicians →Counselor clinicians →Browse health centers →

William Diaz

Affiliated Health Centers

Mental Health & Behavioral Health Services

Related Clinicians

Other Clinicians at These Health Centers

Other Counselor Clinicians

Verify on NPI Registry

Counselor

Browse