Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Richard Allen Siegfried, DC
Chiropractor in Lodi, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194813311
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Richard Allen Siegfried
Credential DC
Sex Male
Practice address 814 W Lodi Ave, Lodi, CA, 95240
Phone (209) 367-5888
Fax (209) 367-5888
Enumeration date Oct 11, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Richard Siegfried?
Richard Siegfried is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.