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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Prof. Oscar Esparza, D.D.S

General Practice Dentistry in Ontario, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1972576130

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Registry record

Entity type Individual (Type 1)
Name Prof. Oscar Esparza
Credential D.D.S
Sex Male
Practice address 213 W G St, Ontario, CA, 91762
Phone (909) 986-6180
Fax (909) 986-6179
Enumeration date Feb 8, 2006
Last updated in NPPES Oct 18, 2018

Taxonomy & licenses

122300000X Dentist Dental Providers · License 45252 (CA) Secondary
1223G0001X General Practice Dentistry Dental Providers · License 45252 (CA) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
D45252 Medicaid CA -
823041039 Other CA TAX IS NUMBER INC.

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.

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Frequently asked questions

How do I verify Oscar Esparza's NPI record?
Cross-check NPI 1972576130 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1972576130 active?
Yes, as of the latest NPPES snapshot, NPI 1972576130 is active (record last updated 2018-10-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-18.