Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marguerite Rindge Cox, M.D.
Pediatrics Physician in Fontana, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255429585
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Registry record
Entity type Individual (Type 1)
Name Marguerite Rindge Cox
Credential M.D.
Sex Female
Practice address 17577 Arrow Blvd., Fontana, CA, 92335
Phone (909) 823-4454
Fax (909) 823-6918
Enumeration date Oct 11, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Marguerite Cox practice?
The practice location on file with NPPES is in Fontana, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marguerite Cox?
The National Provider Identifier (NPI) for Marguerite Cox is 1255429585, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Ftf Pharmacy Corporation Community/Retail Pharmacy · Fontana, CA NPI 1326132366 Albert Arteaga Pediatrics Physician · Fontan, CA NPI 1942398482 Yasuhiro Nishiura Pediatrics Physician · Fontana, CA NPI 1225128770 Halima Shahabuddin Pediatrics Physician · Fontana, CA NPI 1780760645 Lasalle Medical Associates Multi-Specialty Clinic/Center · Fontana, CA NPI 1275661084 Cynthia Cheng Pediatrics Physician · Fontana, CA NPI 1477754380 Smita Malhotra Pediatrics Physician · Fontana, CA NPI 1649437310 Kimberly Madorsky Physician Assistant · Fontana, CA NPI 1912152380
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.