Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Richard Nels Petersen, OD
Optometrist in Lancaster, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1407867161
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Registry record
Entity type Individual (Type 1)
Name Richard Nels Petersen
Credential OD
Sex Male
Practice address 1745 W Avenue K, Suite A, Lancaster, CA, 93534
Phone (661) 942-8437
Fax (661) 940-1959
Enumeration date Aug 10, 2006
Last updated in NPPES Dec 23, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| SD13129T0 | Other | CA | BLUECROSS/BLUE SHIELD |
| 14156 | Other | CA | MESC |
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 Petersen?
Richard Petersen is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Jerry Martin Optometrist · Lancaster, CA NPI 1679543821 Michael Holub Optometrist · Lancaster, CA NPI 1568432730 Antelope Valley Optometric Center, Inc. Optometrist · Lancaster, CA NPI 1548202864 Dr. Yury B. Geylikman, A Professional Dental Corporation Orthodontics and Dentofacial Orthopedics Dentistry · Lancaster, CA NPI 1861682759 Southwest Dental Center Inc. General Practice Dentistry · Lancaster, CA NPI 1942442777
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-23.