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

Mrs. Mary Ruth Stewart, CPNP

Individual provider Pediatric Nurse Practitioner · NPI 1336331529

Mrs. Mary Ruth Stewart, CPNP is a Pediatric Nurse Practitioner in Rialto, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
CPNP — Certified Pediatric Nurse Practitioner
A nurse practitioner certified in paediatrics.

See every abbreviation used in this directory →

Practice location Address checks out

815 S Willow Ave
Rialto, CA 92376-6934
Phone: (909) 820-4431
Fax: (909) 820-7770
Show map & directions

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

Specialties & licences

Pediatric Nurse Practitioner (primary) Taxonomy 363LP0200X · Licence 255889 (CA)

Record details

NPI number1336331529
Entity typeIndividual (Type 1)
GenderFemale
Credentials CPNP
Sole proprietorNo
NPI enumeratedAugust 13, 2007
Last updated in NPPESAugust 13, 2007