Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Diana Ruiz, PHARM.D.
Pharmacist in Martinez, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891767588
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Registry record
Entity type Individual (Type 1)
Name Ms. Diana Ruiz
Credential PHARM.D.
Sex Female
Practice address 150 Muir Rd, Martinez, CA, 94553
Phone (925) 372-2536
Fax (925) 372-2760
Enumeration date Feb 6, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy.
About the PHARMD 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
What is the NPI number for Diana Ruiz?
The National Provider Identifier (NPI) for Diana Ruiz is 1891767588, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diana Ruiz practice?
The practice location on file with NPPES is in Martinez, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Joon-Ha Ok Urology Physician · Martinez, CA NPI 1336120088 Christine Leyba Psychiatry Physician · Martinez, CA NPI 1740262872 Ivan Meadows Anatomic Pathology & Clinical Pathology Physician · Martinez, CA NPI 1801878848 Kathleen Clancy Adult Health Nurse Practitioner · Martinez, CA NPI 1497737977 Jonathan Segal Nephrology Physician · Martinez, CA NPI 1780666164 Gerhard Heinrich Internal Medicine Physician · Martinez, CA NPI 1306828728 Susan Valley Specialist · Martinez, CA NPI 1225011497 Dennis Beckley Specialist · Martinez, CA NPI 1437132560
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.