Winston Y. Chang, DO, is listed in the federal NPI Registry as an endocrinologist with a practice at 632 W Gibson Rd in Woodland, California. His NPI was issued in 2021.
Endocrinologists specialise in hormones and metabolism: blood sugar, thyroid, weight, bones and glands.
After your visit
Endocrine conditions change slowly, so the details between visits matter: how you felt, what changed, what side effects came and went. A clear log makes the next lab review a real conversation. Emerge Care, free to download on iPhone, is built for exactly that: tell it how you feel in your own words, get plain answers with the source behind every fact, and walk into your next endocrinologist appointment with Dr. Chang with a one-page summary and your questions ready.
Emerge Care never diagnoses or replaces your doctor.
Winston Y. Chang is listed in the NPI Registry with a primary specialty of Endocrinology. Endocrinologists specialise in hormones and metabolism: blood sugar, thyroid, weight, bones and glands.
The NPI Registry lists a practice location at 632 W Gibson Rd, Woodland, California 95695. The listed phone number is 530-668-2600. Call to confirm the address before your visit.
We do not have insurance information. Call the office or check your insurance plan's provider directory before booking.
Bring a list of everything you take, including supplements, with how often and your insurance card and photo id. Write down your top questions, for example: "Which numbers should I watch, and what range are we aiming for?"
Details come from the CMS NPPES NPI Registry, the public federal record of licensed providers, checked October 2026. Emerge Care is not affiliated with Winston Y. Chang, and this listing is not a recommendation or an endorsement. Call the office to confirm location, insurance and availability. Are you this provider and want something changed? Email hello@getemergeapp.com.
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