Dr. Chang is on Doximity
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Office
975 Sereno Dr
Vallejo, CA 94589Phone+1 707-651-1000
Education & Training
- UMass Chan Medical SchoolResidency, Family Medicine, 2000 - 2003
- Drexel University College of MedicineClass of 2000
Certifications & Licensure
- CA State Medical License 2003 - 2025
- MA State Medical License 2001 - 2004
- American Board of Family Medicine Family Medicine
- American Board of Obesity Medicine Obesity Medicine
Awards, Honors, & Recognition
- Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2011
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