Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ruben Ruiz, M.D.
Specialist in Rialto, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912901471
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Registry record
Entity type Individual (Type 1)
Name Dr. Ruben Ruiz
Credential M.D.
Sex Male
Practice address 436 S Riverside Ave, Rialto, CA, 92376
Phone (909) 877-8868
Fax (909) 877-0008
Enumeration date Jun 10, 2005
Last updated in NPPES Jan 16, 2019
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| GR0060100 | Medicaid | CA | - |
| GR0060102 | Medicaid | CA | - |
| GR0060101 | Medicaid | CA | - |
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 Ruben Ruiz practice?
The practice location on file with NPPES is in Rialto, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ruben Ruiz?
The National Provider Identifier (NPI) for Ruben Ruiz is 1912901471, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → R Ruiz M D A Medical Corp Primary Care Clinic/Center · Rialto, CA NPI 1578599809 Charles Dobbs Pharmacist · Rialto, CA NPI 1912005018 Vista Pharmacies Inc Community/Retail Pharmacy · Rialto, CA NPI 1306944483 Grace Buonavita Physician Assistant · Rialto, CA NPI 1396805479 Diego Sevilla Physician Assistant · Rialto, CA NPI 1316008972 Oh J. Kwon DDS, Inc Dentist · Rialto, CA NPI 1235286758 R Ruiz M D A Medical Corp Clinical Medical Laboratory · Rialto, CA NPI 1760785588 Darshan Bhakta Pharmacist · Rialto, CA NPI 1285991000
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-16.