Licensure and Board Certification

California Medical License
Board Certified, American Board of Psychiatry and Neurology, 1983

The founder of Pacific Clinical Research, Dr. Dan Zimbroff has conducted numerous research studies on many promising new psychiatric medications since 1990. Dr. Zimbroff has authored important professional papers in psychiatric journals, and has presented at numerous professional meetings, both in the United States and internationally. Simultaneously, he has served as a consultant to many pharmaceutical companies in the forefront of central nervous system drug research and development.

Dr. Zimbroff has been practicing psychiatry and psychopharmacology since 1980, and he has been a Diplomat of the American Board of Psychiatry and Neurology since 1983. Dr. Zimbroff was the Medical Director of Medication Research at the Loma Linda University Behavioral Medicine Center from 1995 to 2000. Prior to his work at Loma Linda, which began in 1995, he was the Medical Director of the Mental Health Services at San Antonio Community Hospital in Upland from 1987 to 1995. Dr. Zimbroff’s work in psychiatric research is well known throughout the psychiatric clinical research world, and he is frequently sought out by pharmaceutical companies to test promising new medication treatments.

Dr. Zimbroff attended college at Columbia University in New York City and graduated from Northwestern University, with Magna Cum Laude Honors. Dr. Zimbroff received his medical degree at the University of Illinois College of Medicine and did his internship and residency at Michael Reese Hospital in Chicago. He was on the faculty of Northwestern University Medical School, Rush-Presbyterian-St. Luke’s Medical Center, and the University of Chicago Medical School, before moving to California in 1987.

Dr Zimbroff is well known throughout Southern California, not just for his research expertise, but also for the quality of care he gives his patients.

Dr. Paul Miller

Licensure and Board Certification

California Medical License
Board Certified, American Board of Psychiatry and Neurology, 1961

Dr. Paul Miller brings to Pacific Clinical Research a wealth of distinguished academic, research and practice experience and knowledge, which he has honed after a long and varied career. He received his Medical Degree at Northwestern University Medical School in Chicago, and completed his psychiatric residency training at the distinguished teaching hospital, Michael Reese, also in Chicago, in 1960. He completed two years of post-graduate training at a US Public Health Service Hospital in Springfield, MO.

Dr. Miller is board certified by the American Board of Psychiatry and Neurology, and he is a Distinguished Life Fellow of the American Psychiatric Association. He has been on the attending physician staff of Olive View-UCLA Medical Center since 1996, and he is a Visiting Associate Professor in the Department of Psychiatry at UCLA School of Medical Sciences since 1997. Dr. Miller is the author of the well-known Computer Assisted Diagnostic Interview, which he has taught annually to psychiatrists at the American Psychiatric Association for several years.

Dr. Miller’s career in academic psychiatry is distinguished, longstanding and diverse. He served as Director and Chairman of the Department of Psychiatry at the University of Nevada School of Medical Sciences in Reno from 1973 to 1978. He was also a Professor of Psychiatry there from 1973 to 1980. He was on the Medical Staff of the teaching hospital of the University of California at Davis from 1969 to 1973, and was an Associate Professor of Psychiatry at UC Davis School of Medicine during those same years. He was a Professor of Psychology at DePaul University in Chicago from 1962 to 1967 and at Roosevelt University in Chicago from 1960 to 1961. He was also an Assistant Professor of Psychiatry at Northwestern University Medical School in Chicago from 1960 to 1969, during which years he also had a private practice of psychiatry.

Dr. Miller is the author of numerous journal articles in psychiatry, published over his long career.

Dr. Miller has been practicing psychiatry in Southern California since 1981. He began in California as the Chief of Inpatient Psychiatry at Harbor UCLA from 1981 to 1982, and then worked as an outpatient psychiatrist for the LA County Dept of Mental Health from 1982 to 1984. He was a staff psychiatrist in the Crisis Evaluation Unit for LA County Department of Mental Health at Norwalk from 1984 to 1991. He continued working for the Los Angeles County Department of Mental Health from 1991 to 1996 as a Staff Psychiatrist at a Therapeutic Residential Center in El Monte. In 1996, he became Coordinator of Education for Inpatient Psychiatry and Staff Psychiatrist at Olive View-UCLA, where he remained until 2001.

Having always been interested in research, Dr. Miller has been a perfect fit as a Clinical Research Physician and Principal Investigator at Pacific Clinical Research Medical Group. Dr. Miller works primarily out of our Pasadena office. He has performed approximately 25 trials as an investigator since joining Pacific Clinical Research Medical Group in 2003.

Dr. Ai-Li Arias

Licensure and Board Certification

California Medical License
Board Eligible, American Board of Psychiatry and Neurology, 2004

Dr. Ai-Li Arias brings to Pacific Clinical Research a breadth of diverse experience and knowledge, having honed her psychiatric and forensic medical skills in both the academic and public sectors in California. She received her Medical Degree at Loma Linda University School of Medicine in 2000. She then followed this with her internship and residency training at Loma Linda University School of Medicine in the Department of Psychiatry, finishing the four year training program in 2004. From there, Dr. Arias did a specialized post-doctoral fellowship training program in Forensic Psychiatry at the University of Southern California in Los Angeles, finishing in August of 2005. She has worked as a Staff Psychiatrist at Patton State Hospital and at the USC Institute of Psychiatry and the Law. She has held the academic appointment of a Clinical Instructor at the USC Keck School of Medicine in the Department of Psychiatry, Institute of Psychiatry, Law and Behavioral Sciences.

In November of 2005, Dr. Arias joined Pacific Clinical Research Medical Group as a Clinical Research Physician and Psychiatrist, working primarily out of the Upland office. After extensive mentoring in the responsibilities and techniques of clinical research psychiatric work by Dr. Zimbroff, she has worked as both a sub-investigator psychiatrist and as a Principal Investigator psychiatrist in many clinical trials.