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Marguerite Cox, M.D.
NPI 1255429585 · Pediatrics Physician · Fontana, CA
Marguerite Cox, M.D. is a Pediatrics Physician provider in Fontana, CA (NPI 1255429585).
Provider details
- NPI number
- 1255429585
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G35067 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
17577 Arrow Blvd.
Fontana, CA 92335
Phone: (909) 823-4454
Fax: (909) 823-6918
Street-level locationGet directions
Mailing address
685 Carnegie Dr.
San Bernardino, CA 92408-3583
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marguerite Cox's NPI number?
- Marguerite Cox's National Provider Identifier (NPI) is 1255429585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marguerite Cox's specialty?
- Marguerite Cox is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Marguerite Cox located?
- Marguerite Cox's practice location on file with NPPES is 17577 Arrow Blvd., Fontana, CA 92335.
- What is Marguerite Cox's phone number?
- The practice phone number listed in the NPPES registry for Marguerite Cox is (909) 823-4454.
- Is Marguerite Cox's NPI active?
- Yes — Marguerite Cox's NPI (1255429585) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.