2006至2009年間連續獲邀擔任「亞洲攝護腺癌論壇」大會座長，代表台灣與亞洲各國頂尖學者進行深度學術研討。
2015年赴美國波士頓 Brigham & Women's Hospital（BWH）進行達文西手術作業專案考察，積極引進國際頂尖醫療技術，推動達文西機械手臂微創手術發展。
除了專精於臨床與手術醫術外，亦創辦成立「台灣攝護腺癌防治協會」，長期積極投入國內男性的攝護腺癌早期篩檢推廣與衛教宣導，協助廣大病友與家屬面對疾病挑戰。
中國醫藥學院 醫學系 學士1977.09~1984.06
和信治癌中心醫院 外科部 主任 2010.04~2011.07
和信治癌中心醫院 泌尿外科 資深主治醫師 1991.11~2011.07
與哈佛附屬醫院合作建立達文西機械手臂微創手術中心 2016
美國波士頓The Brigham & Women's Hospital (BWH) 達文西機械手臂微創手術作業專案考察 2015/11/15~11/21
康健雜誌評選為台灣百大名醫2009年
台北市醫師公會第十六屆杏林獎 2008年
陽明醫學院 泌尿科 臨床副教授 2009年~2013年
台灣攝護腺癌防治協會 榮譽會長 2007年~迄今
獲邀亞洲攝護腺癌論壇擔任大會座長 2006年-2009年
美國貝勒醫學中心博士後泌尿腫瘤訓練，通過美國醫師考試 1991.11~1992.09
台北市醫師公會會員
台灣泌尿科醫學會會員
台灣外科醫學會會員
美國泌尿科醫學會會員
美國泌尿科醫學會(AUA)會員
期刊論文 (Journal Papers)
• Su-Jen Chang, Kuang-Kuo Chen, Luke S Chang, Ming-Tsun Chen, Zine-An Wu. Biothesiometry — A Simple Neurological Test for Impotence. J Urol ROC. 1990;1:40-44.
• Ai-Ying Chuang, Shu-Jen Chang, Cheng-Fang Horng, Mei-Hua Tsou. Study of Prostate Cancer Pathologic Features in Chinese Populations. Urology. 2007;69(5):915-920.
• Ming-Yuan Lee, Mei-Hua Tsou, Mary H. Cheng, Daniel S. Chang, Alex Lien-Yen Yang, Jen-Sheng Ko. Clinical application of NMP22 and urinary cytology in patients with hematuria or a history of urothelial carcinoma. World J Urol. 2000;18:401-405.
• Jungle C.H. Wu, Daniel S. Chang, Mao-Sheng Lin. The Use of Serum Free-to-Total Prostate Specific Antigen Ratio to Predict Pathological Stage and Gleason Grade of Prostate Cancer with PSA of 4-20 ng/ml. Show Chwan Medical Journal. 2005;6(1-2):1-8.
• Hideyuki Akaza, Malcolm A Moore, Shu-Jen Chang, Christopher Cheng, Han Yong Choi, Kesavan Esuvaranathan, Shiro Hinotsu, Sung-Joon Hong, Choung-Soo Kim, Wun-Jae Kim, Masaru Murai, Seiji Naito, Doddy Soebadi, Jae-Mann Song, Rainy Umbas, Michiyuki Usami, Shujie Xia, Chi-Rei Yang. The 5th Conference on Asian Trends in Prostate Cancer Hormone Therapy. Asian Pacific Journal of Cancer Prevention. 2007;8:3-12.
• Hideyuki Akaza, Shu-Jen Chang, Huang-Kuo Chen, Kesavan Esuvaranathan, Tomoaki Fujioka, Yoshihiko Hirao, Sung-Joon Hong, Shiro Hinotsu, Wun-Jae Kim, Weber Lau, Sang Eun Lee, Masaru Murai, Seiji Naito, Osamu Ogawa, Houng-Sik Rim, Doddy M Soebadi, Jae-Man Song, Taiji Tsukamoto, Rainy Umbas, Michiyuki Usami, Chi-Rei Yang, Jin Han Yoon, Liqun Zhou. The 2nd Conference on Asian Trends in Prostate Cancer Hormone Therapy. Jpn J Cancer Chemother. 2003;30(10):1533-1542.
• Hideyuki Akaza, Seiji Naito, Christopher Cheng, Amir Kaisary, Doddy M. Soebade, Rainy Umbas, Kesavan Esuvaranathan, Fang-Liu Gu, Liqun Zhou, Sung-Joon Hong, Wun-Jae Kim, Sang Eun Lee, Joung-Sik Rim, Jae Mann Song, Jin Han Yoon, Shu-Jen Chang, Chun-Hsiung Huang, Chi-Rei Yang, Yoshihiko Hirao, Masaru Murai, Taiji Tsukamoto, Michiyuki Usami. Asian Trends in Prostate Cancer Hormone Therapy. Jpn J Cancer Chemother. 2002;29(11):1951-1961.
學會發表論文 (Conference Papers)
• Su-Jen Chang, Kuang-Kuo Chen, Luke S Chang, Ming-Tsun Chen, Zine-An Wu. Biothesiometry — A Simple Neurological Test for Impotence. 7th Congress Asian Surgical Association, Penang, Malaysia. Feb. 1989.
• Symptoms arising from Double J insertion. Annual Meeting of Surgical Association of Republic of China. March 1989.
• Management of ureteral injury: Open surgery or Endourologic method. Annual Meeting of Urological Association of Republic of China. Aug. 1989.
• Experience in Artificial Urinary Sphincter Implantation. Annual Meeting of Surgical Association of Republic of China. Sept. 1989.
• Rhabdomyosarcoma of Urinary Bladder. Annual Meeting of Surgical Association of Republic of China. March 1990.
• Sperm Penetration Assay and Antisperm Antibodies in varicocele patients. Annual Meeting of Surgical Association of Republic of China. March 1990.
• Morbidity associated with indwelling internal ureteral stent in Extracorporeal Shock wave Lithotripsy. Annual Meeting of Surgical Association of Republic of China. March 1990.
• Clinical use of new coated Dexon in Urological Surgery. Annual Meeting of Urological Association of Republic of China. Aug. 1990.
• The use of Calcium channel blocker in renal colic. Annual Meeting of Surgical Association of Republic of China. Sept. 1990.
• 張樹人 et al. 根除性攝護腺切除術之孫逸仙醫院經驗. 外科醫學會1997.
• 張樹人. 攝護腺癌. 台灣醫界. 1996;Vol 39 No 8-9:705.
• 血中PSA、PRE及Image Study與RRP病理分析. 外科學會1997.
• 張樹人. The Vescots of Community Based Prostate Cancer Screening Campaign. Annual Meeting of Urological Association ROC, 1996.
• Hideyuki Akaza et al. The 5th conference on Asian Trends in Prostate Cancer Hormone Therapy. Asian Pacific Journal of Cancer Prevention. 2007.