John Chang, D.O.

Family Medicine

GenderMaleNPI1679557326Affiliated sites3

Affiliated Health Centers

John Chang is affiliated with 3 federally qualified health center locations.

GREATER LAWRENCE FAMILY HEALTH

34 Haverhill St, Lawrence, MA 01841-2884

Medicare★ 3.0 Google (3)

View clinic →

CAB TRANSITIONS

365 East Street, Tewksbury, MA 01876-1998

Medicare★ 3.0 Google (3)

View clinic →

Community Action Drop-In Center

16 Ashland St, Haverhill, MA 01830-4129

Medicare★ 3.0 Google (3)

View clinic →

Primary Care Services

Preventive care, chronic disease management, and routine health services for all ages.

Annual physicals

Chronic disease management

Immunizations

Preventive screenings

Acute illness care

Hypertension & diabetes management

Referral coordination

Browse all Primary Care 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

Family Medicine

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

View services →

Affiliated Health Center

GREATER LAWRENCE FAMILY HEALTH

View quality scores & reviews →

Browse

All clinicians →Family Medicine clinicians →Browse health centers →

Going to a Community Health Center?

These clinics charge based on what you earn, and are funded to serve people who cannot pay much.

Who can be seen here →What a visit costs →What to bring to your first visit →What is an FQHC? →

John Chang, D.O.

Affiliated Health Centers

Primary Care Services

Related Clinicians

Other Clinicians at These Health Centers

Other Family Medicine Clinicians

Verify on NPI Registry

Family Medicine

Affiliated Health Center

Browse

Going to a Community Health Center?