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Heidi Y Chang Obstetrics & Gynecology · Walnut Creek, CA

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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Payments are legal and often routine: context on every page. GlassScript is independent and is not affiliated with, endorsed by, or sponsored by CMS or HHS. Not medical, legal, or financial advice. Official source ↗

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