Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Han Kyo K Chang, MD

Individual provider Specialist · NPI 1235127150

Han Kyo K Chang, MD is a Specialist in Walnut Creek, California. Practices as a sole proprietor. Licensed in California and New York.

Licensed in
CA, NY
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1434 Stanley Dollar Dr Unit 3B
Walnut Creek, CA 94595
Phone: (716) 418-4665
Fax: (925) 954-8696
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C138034 (CA)
Specialist Taxonomy 174400000X · Licence 125005 (NY)

Record details

NPI number1235127150
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 13, 2005
Last updated in NPPESNovember 30, 2022
Certification dateNovember 30, 2022

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