
Dr. Oseas is a true native Southern Californian. He attended the University of California, Los Angeles, from 1980 to 1983, attaining a Bachelor of Science degree in Biology. Dr. Oseas then went on to attend the UCLA School of Dentistry from 1983 to 1987.
Dr. Oseas practiced general dentistry in the San Fernando Valley for two years before entering the Oral Surgery Residency Program at the University of Illinois, Chicago. This intensive training program which he attended from 1989 to 1993, included rotations at the University of Illinois Hospital and Dental School, Humana Hospital Michael Reese, Cook County Hospital and the West Side Veterans Administration Medical Center.
Dr. Oseas returned to Southern California in 1995, and he has been in private practice at his current location in Torrance ever since.
Read Dr. Oseas's cover story in Doctor of Dentistry Magazine
| July 1987 - Present | Dentistry, State of California |
| July 1993 - Present | California General Anesthesia Permit |
| 2000 - Present | General Anesthesia Office Evaluator, Dental Board of California |
| October 1999 - Present | Pediatric Advanced Life Support Provider |
| January 1991 - Present | Advanced Cardiac Life Support Provider |
| June 1995 - Present | American Heart Association Basic Life Support Instructor |
| 1989 - Present | Basic Life Support for Healthcare Providers |
| 1995 - Present | Torrance Memorial Medical Center Torrance, California |
| 2001 - Present | Torrance Memorial Medical Center Chairperson, Dentistry & Oral Surgery Subcommittee Department of Surgery |
| 1995-2007 | Little Company of Mary Hospital Torrance, California |
| 1994 - Present | American Association of Oral and Maxillofacial Surgeons |
| 1993 - Present | California Association of Oral and Maxillofacial Surgeons |
| 1995 - 2001 2001 - Present |
Southern California Society of Oral and Maxillofacial Surgeons Southern California Orofacial Academy |
| 1987 - Present | American Dental Association |
| 1987 - 1989, 1993 - Present | California Dental Association |
| 1995 - Present 2007 2000-2004 |
Western Los Angeles Dental Society Membership Committee Chairperson Southern Area Representative |
| 1998 - Present | American Dental Society of Anesthesiology |
| 1998 - Present | California Dental Society of Anesthesiology |
| 1996 - Present | Southern California Academy of Oral Pathology |
| 1983 - Present | Alpha Omega Int'l Dental Fraternity |
| 2000 - Present | Independent Doctors of the South Bay |
| 1983 - Present | UCLA Alumni Association Lifetime Member |

The surgical staff at the office of Dr. Mark E. Oseas are highly experienced in outpatient surgical care, administration of anesthesia and all aspects of infection control. All staff members are Certified Oral and Maxillofacial Surgery Assistants and are certified in CPR (Basic Life Support). Our administrative staff have years of experience in Oral and Maxillofacial Surgery and are well-versed in insurance and financial policies as relate to surgical treatment.