Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Richard M Witten, M.D.
Specialist in Los Angeles, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700882644
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Registry record
Entity type Individual (Type 1)
Name Dr. Richard M Witten
Credential M.D.
Sex Male
Practice address 6363 Wilshire Blvd, Ste 320a, Los Angeles, CA, 90048
Phone (323) 653-6111
Enumeration date Jun 24, 2005
Last updated in NPPES Aug 26, 2008
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 000G77820 | Other | CA | BLUE SHIELD OF CA |
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
What specialty is Richard Witten?
Richard Witten is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-26.