Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Arnold Dc Rivera, M.D.
Urology Physician in Derby, CT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477583045
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Registry record
Entity type Individual (Type 1)
Name Dr. Arnold Dc Rivera
Credential M.D.
Sex Male
Practice address 111 New Haven Ave, Unit 5, Derby, CT, 06418
Phone (203) 736-4816
Fax (203) 732-7956
Enumeration date Jul 3, 2006
Last updated in NPPES Jan 18, 2017
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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
Where does Arnold Rivera practice?
The practice location on file with NPPES is in Derby, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Arnold Rivera?
The National Provider Identifier (NPI) for Arnold Rivera is 1477583045, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-18.