Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Derrick V Marinelli, M.D.
Urology Physician in Fullerton, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689897761
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Registry record
Entity type Individual (Type 1)
Name Dr. Derrick V Marinelli
Credential M.D.
Sex Male
Practice address 1950 Sunnycrest Dr, #3400, Fullerton, CA, 92835
Phone (714) 879-2410
Fax (714) 879-5340
Enumeration date Apr 10, 2007
Last updated in NPPES Dec 1, 2021
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 |
|---|---|---|---|
| GR0011581 | Other | CA | MEDI CAL GROUP |
| 1851498133 | Other | CA | GROUP NPI |
| 05D0552498 | Other | CA | CLIA |
| YYY49655Y | Other | CA | BLUE SHIELD |
| 05D0684380 | Other | CA | CLIA |
| 05D0977537 | Other | - | CLIA |
| G59971 | Other | CA | PHYS LICENSE |
| G59971 | Other | CA | MEDI CAL RENDERING |
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 Derrick Marinelli?
Derrick Marinelli is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-01.