Mary Stewart, C.P.N.P.
NPI 1336331529 · Pediatric Nurse Practitioner · Rialto, CA
Mary Stewart, C.P.N.P. is a Pediatric Nurse Practitioner provider in Rialto, CA (NPI 1336331529).
Provider details
- NPI number
- 1336331529
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- C.P.N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 255889 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-13
- Last updated
- 2007-08-13
Frequently asked questions
- What is Mary Stewart's NPI number?
- Mary Stewart's National Provider Identifier (NPI) is 1336331529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Stewart's specialty?
- Mary Stewart is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Stewart located?
- Mary Stewart's practice location on file with NPPES is 815 S Willow Ave, Rialto, CA 92376-6934.
- What is Mary Stewart's phone number?
- The practice phone number listed in the NPPES registry for Mary Stewart is (909) 820-4431.
- Is Mary Stewart's NPI active?
- Yes — Mary Stewart's NPI (1336331529) is active in the NPPES registry as of the last update on 2007-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.