Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Denis Yuji Matsuoka, PHARMD.
Pharmacist in Downey, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801983499
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Registry record
Entity type Individual (Type 1)
Name Denis Yuji Matsuoka
Credential PHARMD.
Sex Male
Practice address 12254 Bellflower Blvd, Downey, CA, 90242
Phone (562) 658-3787
Enumeration date Oct 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
Is NPI 1801983499 active?
Yes, as of the latest NPPES snapshot, NPI 1801983499 is active (record last updated 2007-07-08).
How do I verify Denis Matsuoka's NPI record?
Cross-check NPI 1801983499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Steve Gray Pharmacist · Downey, CA NPI 1295769669 Erwin Jeong Pharmacist · Downey, CA NPI 1003913989 Leona Dombroske Pharmacist · Downey, CA NPI 1730272600 Dale Powers Clinical Social Worker · Downey, CA NPI 1164517371 Ronald Mizufuka Pharmacist · Downey, CA NPI 1114013372 Pamela Judd Pharmacist · Downey, CA NPI 1336235266 Linda Falsafi-Haghighi Pharmacist · Downey, CA NPI 1457447351 Vivian Sinkaset Ambulatory Care Pharmacist · Downey, CA NPI 1588752497
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.