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

Ricardo O Castillo, MD

Individual provider Pediatric Gastroenterology Physician · NPI 1487738811

Ricardo O Castillo, MD is a Pediatric Gastroenterology Physician in Palo Alto, California. Licensed in California and New Mexico. Registered with an NPI since 2006.

Licensed in
CA, NM
In the registry since
2006
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

725 Welch Rd
Palo Alto, CA 94304-1601
Phone: (650) 497-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Gastroenterology Physician (primary) Taxonomy 2080P0206X · Licence G34798 (CA)
Pediatric Gastroenterology Physician Taxonomy 2080P0206X · Licence MD 2013-0785 (NM)

Record details

NPI number1487738811
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2006
Last updated in NPPESJanuary 24, 2025
Certification dateJanuary 24, 2025

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