Deborah Castillo Díaz

Contact Information:

Tel.  (787) 759-3127

Fax  (787) 754-7539



J.D., Magna Cum Laude, University of Puerto Rico School of Law

B.A.,  Magna Cum Laude, Pre-Law University of Puerto Rico


Practice Areas:

Health Law


Corporate Law


Health Facilities and Providers licensing

Appellate Practices


Court Admissions:

Commonwealth of Puerto Rico

U.S. Court of Appeals for the First Circuit


Deborah Castillo Díaz is a Counsel in the Corporate Law Division at Fiddler, González & Rodríguez, P.S.C.


She has more than 13 years of experience in both the private and government sector and her practice principally covers insurance and compliance matters, including federal and local laws and regulations, and Health Law matters related with health facilities and health providers, pharmaceutical products and entities, and licensing matters, among others. Ms. Castillo has a vast experience in procedures before the Office of the Commissioner of Insurance and the Department of Health, SARAFS, ASSMCA, and the drafting of client opinions and contracts for insurance companies and health entities. These procedures include, among others, administrative proceedings before the government agencies, the obtaintion of Certificates of Need and Convenience (“CNC”), registration of pharmaceutical products, and licensing procedures for health entities.


In addition to working at Fiddler, González & Rodríguez, P.S.C., Ms. Castillo was a Special Aide and Legal Advisor of the Puerto Rico Insurance Commissioner where she principally handled health law matters and worked in the implementation of the Affordable Care Act (ACA) in Puerto Rico. Her duties at the Office of the Insurance Commissioner included, but were not limited to: Drafting of Advisory Opinions and Ruling Letters; Meetings and consultations with representatives of local and federal government entities, the National Association of Insurance Commissioners (NAIC), and CCIIO (HHS); Analysis and drafting of laws and regulations; Legal advice to the Insurance Commissioner, personnel of the OCI, members of the insurance industry, and consumers; Insurance industry meetings and consultations, and meetings with the Legislature to discuss insurance policy and legislation.


While in the Office of the Commissioner of Insurance, Ms. Castillo obtained the Associate Professional Insurance Regulator Designation (APIR) granted by the NAIC Professional Designation Program. The APIR Designation is held by professionals who have been exposed to an array of insurance regulatory concepts in the areas of market conduct, solvency, rate, and form regulations. In order to obtain the Designation a candidate must pass three exams in the areas of: Foundations of Insurance Regulation, Financial Regulation, and Insurance Product Regulation.


Ms. Castillo is also experienced in corporate and contractual matters, such as board of directors’ and shareholders’ proceedings, stock transfers, the acquisition of business concerns including due diligence work and participation in meetings with multiple parties to negotiate contracts, and the collaboration with clients in the design, drafting, and negotiation of contracts. In addition, Ms. Castillo has experience in the Appellate Practice, including the Puerto Rico Court of Appeals and the Supreme Court of Puerto Rico.


Finally, Ms. Castillo has participated as a speaker in numerous forums primarily related with Health matters, including the Puerto Rico Chamber of Commerce Health Conference and the Health Law Conference of the Interamerican University of Puerto Rico.


Office Location:

254 Muñoz Rivera Ave. 6th Floor

Hato Rey, Puerto Rico 00918


Mailing Address:

PO Box 363507

San Juan, PR 00936-3507


Telephone and Email Address:

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