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

Dr. David T. Hsieh, MD

Individual provider Family Medicine Physician · NPI 1891919874

Dr. David T. Hsieh, MD is a Family Medicine Physician in Diamond Bar, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1142 S Diamond Bar Blvd Ste 366
Diamond Bar, CA 91765-2203
Phone: (909) 720-8122
Fax: (909) 612-1034
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 A40716 (CA)

Record details

NPI number1891919874
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 12, 2007
Last updated in NPPESJuly 8, 2007

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