楊榮正是加利福尼亚州的执照牙科医生。1984年在臺灣高雄醫科大學取得医学学位。楊医生目前所在的医疗机构为使命谷牙科中心(Mission Valley Dental Center)，地址在39271 Mission Blvd, Fremont, CA 94539。楊医生擅长于儿科和老年医学服务，重新填充，密封胶，深层清洁，根管治疗，冠和桥，假牙，植入物和植入物修复，正畸，牙齿美白。。除了英语以外，楊医生还能讲台语和国语，并接受新病人。
Lau, Kanson Kwok Kanson Kwok Lau DDS 
藏之忠 Redwood Dental 
Fan, Wen Cupertino Oral and Dental Implants 
郑凯文 O&M Dental - Family Dentistry 
钱菁菁 Jing-Jing Qian DDS 
黄婉瑜 William Tong DDS & Yvonne Wong DDS Comprehensive Family Dentistry 
王廷钧 Columbia Dental Care 
Xie, Dani Heyday Dental 
刘代程 Dai-Chen Liu DDS and Fei-Ya Hu DDS 
Wang, Joe Dental Zone 
Rong, John Genuine Care Dental
| Lau, Kanson Kwok | Kanson Kwok Lau DDS |
| 藏之忠 | Redwood Dental |
| Fan, Wen | Cupertino Oral and Dental Implants |
| 郑凯文 | O&M Dental - Family Dentistry |
| 钱菁菁 | Jing-Jing Qian DDS |
| 黄婉瑜 | William Tong DDS & Yvonne Wong DDS Comprehensive Family Dentistry |
| 王廷钧 | Columbia Dental Care |
| Xie, Dani | Heyday Dental |
| 刘代程 | Dai-Chen Liu DDS and Fei-Ya Hu DDS |
| Wang, Joe | Dental Zone |
| Rong, John | Genuine Care Dental |