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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ronald Delmar Neufeld, DDS

General Practice Dentistry in Sonora, CA · enumerated 2009.

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

National Provider Identifier

1275776379

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Registry record

Entity type Individual (Type 1)
Name Dr. Ronald Delmar Neufeld
Credential DDS
Sex Male
Practice address Sonora, CA, 95370
Phone (209) 532-3625
Fax (209) 532-0317
Enumeration date Apr 20, 2009
Last updated in NPPES Apr 20, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 20032 (CA) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

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Frequently asked questions

Is NPI 1275776379 active?
Yes, as of the latest NPPES snapshot, NPI 1275776379 is active (record last updated 2009-04-20).
How do I verify Ronald Neufeld's NPI record?
Cross-check NPI 1275776379 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-20.