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

Andrew Y. Chao, Inc

Organization Family Medicine Physician · NPI 1780802108

Andrew Y. Chao, Inc is a Family Medicine Physician in Ballwin, Missouri. Licensed in Missouri. Registered with an NPI since 2007.

Licensed in
MO
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

683 Big Bend Rd
Ballwin, MO 63021-7723
Phone: (636) 227-1511
Fax: (636) 227-2452
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence R2A51 (MO)

Record details

NPI number1780802108
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Dailing Chao — Office Superviser · (636) 227-1511
NPI enumeratedApril 23, 2007
Last updated in NPPESAugust 7, 2007
Mailing address683 Big Bend Rd, Ballwin, MO 63021-7723

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