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

Seungyoun Lyu, DDS

Individual provider Dentist · NPI 1790170504

Seungyoun Lyu, DDS is a Dentist in Hayward, California. Practices as a sole proprietor and works from 5 locations. Licensed in California and Illinois.

Licensed in
CA, IL
In the registry since
2015
Specialties on file
2
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

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Practice location Address checks out

22331 Mission Blvd
Hayward, CA 94541-3911
Phone: (510) 471-5880
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 16110 E 14th St, Ashland, CA 94578-3002 — (510) 471-5880
  • 28300 Huntwood Ave, Hayward, CA 94544-5425 — (510) 471-5880
  • 680 W Tennyson Rd Rm 12, Hayward, CA 94544-5236 — (510) 471-5880
  • 33255 9th St, Union City, CA 94587-2137 — (510) 471-5880

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence DDS104870 (CA)
General Practice Dentistry Taxonomy 1223G0001X · Licence 319019913 (IL)

Record details

NPI number1790170504
Entity typeIndividual (Type 1)
GenderFemale
Credentials DDS
Sole proprietorYes
NPI enumeratedMarch 30, 2015
Last updated in NPPESApril 23, 2026
Certification dateApril 23, 2026
Mailing address22331 Mission Blvd, Hayward, CA 94541-3911

Other providers in Hayward