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Oscar Castañeda

Castañeda Law • Phoenix, AZ
Criminal DefenseImmigration

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Contact

Email
Phone
(602) 483-4012
Address
4001 N 3rd Street, Phoenix, AZ, 85012, US

Professional

About

Oscar Castañeda is a dedicated attorney based in Phoenix, Arizona, with a profound commitment to serving clients in both criminal defense and immigration law. Originally hailing from Nogales, Arizona, a border town that exposed him to the complexities of immigration and criminal justice from a young age, Oscar’s passion for advocacy was ignited by witnessing the challenges faced by individuals in his community. Oscar earned his law degree from Arizona State University, where he honed his legal acumen through a law clerk position with a leading criminal defense attorney in the Phoenix area. This invaluable experience provided him with a comprehensive understanding of the criminal court system and enhanced his litigation skills. Additionally, his early work in an immigration law office equipped him with a unique insight into the interplay between immigration issues and criminal law, allowing him to offer holistic legal solutions to his clients. Upon graduating in 2006, Oscar joined a prominent criminal defense firm where he quickly managed a diverse and challenging felony caseload, ranging from DUIs to homicide cases. His expertise in negotiation and litigation has established him as a formidable advocate for his clients. Oscar’s dedication to his profession and his clients is evident in the founding of Castañeda Law, a firm he established with his brother Jorge, built on principles of hard work and achieving optimal results. At Castañeda Law, Oscar and his team are committed to delivering aggressive and professional legal representation tailored to the specific needs of each client. Their reputation for integrity and excellence distinguishes Castañeda Law as a premier choice for individuals seeking expert guidance in criminal defense and immigration matters in Phoenix, AZ.

About Criminal Defense Law

Criminal defense attorneys represent individuals accused of crimes, protecting their constitutional rights throughout the legal process. They work to achieve the best possible outcome through negotiation or trial. Common matters include dui/dwi, drug charges, assault, theft.

Credentials

Education
2006 Arizona State College Of Law JD - Juris Doctor 2003 Arizona State University Bachelor of Interdisciplinary Studies
Languages
English | Spanish

Recognition & Involvement

Associations
2015 - Present United States District Court 2015 - Present American Bar Association
Speaking
2014 ASU Speed DUI Basic Immigration Consequences of DUI Convictions
Updated: Mar 29, 2026