John Chang, DO
Family Medicine
21+ years in practiceNPI: 1679557326Licensed in MA
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Credentials & Recognition
Specialties
Family Medicine
NPI sub-specialties
Family Medicine207Q00000X
Emergency Medicine207P00000X
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
21+ years
Estimated from NPI enumeration date
Other Family Medicine Doctors near Massachusetts
View all →Frequently Asked Questions about Dr. John Chang, DO
Where does Dr. John Chang, DO practice?+
Dr. John Chang, DO practices in Massachusetts, MA. 34 HAVERHILL ST
LAWRENCE, MA 018412884.
What is Dr. John Chang, DO's phone number?+
Dr. John Chang, DO's practice phone is 978-686-0090. Office contact information is verified on the PBCMMG profile.
What does Dr. John Chang, DO specialize in?+
Dr. John Chang, DO's primary specialty is Family Medicine.
Is Dr. John Chang, DO board certified?+
Board certification status for Dr. John Chang, DO has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. John Chang, DO been practicing?+
Dr. John Chang, DO has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. John Chang, DO's NPI number?+
Dr. John Chang, DO's National Provider Identifier (NPI) is 1679557326, registered in the federal NPPES registry.
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
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