News Story


Search Warrant Served at Simi Valley Doctor's Office
6/19/2015 3:00:00 PM


Nature of Incident:

Search Warrant Served at Simi Valley Doctor's Office

Report Number:



143 Parrot Lane, Simi Valley

Date & Time:

May 28, 2015

Unit(s) Responsible:

Ventura County Interagency Pharmaceutical Crimes Unit

(S)uspects, (V)ictims, (P)arty, (D)ecedent

City of Residence


Dr, William Matzner

Simi Valley



On May 28, 2015, the Ventura County Interagency Pharmaceutical Crimes Unit (PCU) continued their investigation into a Simi Valley physician regarding claims of overprescribing opiate and other controlled substance medication.


A search warrant was served at Dr. Matzner's Simi Valley office. Numerous medical files and other items of evidentiary value were seized during the service of the warrant. The search was related to a several month investigation centered on the amount of prescription drugs coming from Dr. Matzner's office. The investigation revealed Dr. Matzner's office had become a source of supply for drug seeking and drug dealing patients. During the service of the warrant, Dr. Matzner resigned his DEA registration eliminating the possibility of him legally writing prescriptions for controlled substances.


A death related to his practice of medicine is also being investigated.


The Ventura County Sheriff's Office East County Narcotic's Street Team assisted in the investigation.


The investigation is ongoing. Anyone with information regarding Dr. Matzner may call the Ventura County Interagency Pharmaceutical Crimes Unit at (805) 383-8700 or email


The Ventura County Interagency Pharmaceutical Crimes Unit is a task force comprised of members from the Ventura County Sheriff's Office, Simi Valley Police Department, the District Attorney's Office Bureau of Investigation, the California Highway Patrol, and the Health Quality Investigation Unit of the California Division of Investigation. The primary mission of the task force is combating the transfer of legal prescription medication to the illegal market. In addition, the task force works to identify and stop new trends of abuse among the younger population and investigates overdose deaths due to both prescription medication and illicit drug use. 


Prepared by:

Sergeant Victor Fazio


News Release Date:

June 19, 2015


Media Follow-Up Contact:

Sergeant Victor Fazio

(805) 383-8700



Approved by:

Captain Curt Rothschiller



Ventura County Crime Stoppers will pay up to $1,000 reward for information, which leads to the arrest and criminal complaint against the person(s) responsible for this crime.  The caller may remain anonymous.  The call is not recorded.  Call Crime Stoppers at 800-222-TIPS (8477).