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

Lois Shiow Balster, MD

Individual provider Pediatrics Physician · NPI 1568578474

Lois Shiow Balster, MD is a Pediatrics Physician in San Mateo, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

50 S San Mateo Dr Ste 260
San Mateo, CA 94401-3857
Phone: (650) 579-6500
Fax: (650) 579-1943
Show map & directions

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

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence A90747 (CA)

Record details

NPI number1568578474
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2006
Last updated in NPPESJanuary 14, 2022

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