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Marco B. Mercaldo

Attorney Profile

Top Rated Medical Malpractice Attorney in Tucson, AZ

Mercaldo Law Firm
1853 North Kolb Road
Tucson, AZ 85715
Phone: 520-624-1400
Fax: 520-624-1955
Selected to Super Lawyers: 2013, 2015 - 2022
Licensed in Arizona Since: 2001
Practice Areas: Personal Injury - Medical Malpractice: Plaintiff, Personal Injury - Products: Plaintiff
Attorney Profile

Marco is a partner at The Mercaldo Law Firm. Working out of the firm's office in Tucson, Arizona, and devoting his time to medical malpractice, personal injury and wrongful death litigation, he provides representation to clients throughout Arizona, California and other parts of the Southwest who have been harmed by the negligence or recklessness of others. 

Marco received a BA from The University of Arizona in 1994. He then went on to attend the University of San Diego School of Law and was awarded his JD in 1998. After law school, Mr. Mercaldo spent six years with a San Diego civil litigation firm and then nine years as a partner at another San Diego firm until joining The Mercaldo Law Firm in 2014. Admitted to practice in Arizona and California, he is also admitted to practice before the U.S. District Court for the District of Arizona and the U.S. District Courts for the Central, Eastern and Southern Districts of California.

During his career, Marco has firmly established himself as an adept advocate for his clients. His fellow professionals have taken note of both his successful track record and high degree of ethics, as evidenced by his AV-Preeminent* peer-review rating through Martindale-Hubbell. He is a member of the American Board of Trial Advocates, is lited in Best Lawyers in America, Lawdragon Top 500 and has also been named to The National Trial Lawyers: Top 100.  In 2013, San Diego Magazine included him in its annual list of Top Lawyers in San Diego and he has been listed in Southwest Super Lawyer magazine every year since 2015. Marco is an active participant in several legal organizations, including the American Association for Justice, Arizona Association for Justice, San Diego County, Pima County and American Bar associations.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Rating™ fall into two categories – legal ability and general ethical standards.

Practice Areas
  • 90%Personal Injury - Medical Malpractice: Plaintiff
  • 10%Personal Injury - Products: Plaintiff
Focus Areas

Medical Malpractice


9 Years Super Lawyers
  • Super Lawyers: 2013, 2015 - 2022

About Marco B. Mercaldo

First Admitted: 1998, California

Professional Webpage:


  • San Diego Top Attorney by San Diego Magazine, 2013  
  • Member, American Board of Trial Advocates
  • The National Trial Lawyers Top 100, 2014 and 2015  
  • Martindale Hubbell AV Rating, 2009 – Present  
  • San Diego Superlawyers  , 2013

Educational Background

  • University of Arizona, Bachelor of Arts Degree in English, 1994

Bar/Professional Activity

  • Arizona, 2001  
  • U.S. District Court Eastern District of California, 2007  
  • Pima County Bar Association, Member, 2013 – Present  
  • California, 1998  
  • U.S. District Court Central District of California, 2005  
  • San Diego County Bar Association, Member, 1998 – Present  
  • U.S. District Court District of Arizona, 2004  
  • U.S. District Court Southern District of California, 1998  

Other Outstanding Achievements

  • Lawdragon Top 500, 2019

Industry Groups

  • Arizona State Bar
  • California State Bar
  • Pima County Bar Association
  • San Diego County Bar Association
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Office Location for Marco B. Mercaldo

1853 North Kolb Road
Tucson, AZ 85715

Phone: 520-624-1400

Fax: 520-624-1955

Last Updated: 5/15/2022

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