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Dr Oh Choon Chiat

Dr Oh Choon Chiat

MBBS, MRCP (UK), FAMS (Dermatology), FRCP (London), MCI, M.Sc (Derm Prev Onco)

Senior Consultant

Singapore General Hospital

Specialty: Dermatology, Surgery & Surgical Oncology

Sub-specialties: General Dermatology, Hospital Dermatology, Skin Cancer, Skin Surgery, Nail Surgery, Laser Surgery

Conditions Treated by this Doctor:
Acne Marks and Scars, Acne Vulgaris, Hair and Nail Problems, Melasma, Pigmentary Disorders (Vitiligo, Melasma, Pigmented Birthmarks), Sexually Transmitted Infections, Skin Cancer, Skin Infections.

Clinical Appointments

  • Consultant Division of Surgery & Surgical Oncology National Cancer Centre SingaporeNational Cancer Centre Singapore
  • Dermatologist SingHealth Duke-NUS Transplant Centre
  • Senior Consultant Dermatology Singapore General HospitalSingapore General Hospital


​Dr Oh Choon Chiat is a Senior Consultant with the Dermatology Department, he has keen clinical interests in skin cancers and skin care in transplant recipients.


  • ​MBBS (Singapore), 2005
  • MRCP(UK), 2010
  • Specialist Certificate Examination in Dermatology (UK), 2012
  • FAMS Dermatology, 2015

Professional Appointments and Committee Memberships

  • ​Dermatological Society of Singapore - Member
  • Medical Dermatology Society (USA) - Member
  • British Society of Dermatologic Surgery - Member
  • Academic Medicine Research Institute Singapore - Member
  • International Transplant Skin Cancer Collaborative (USA) - Member
  • Royal College of Physicians UK - Member
  • British Medical Laser Association – Member
  • European Academy of Dermatology and Venereology – Member
  • Skin Cancer in Organ transplant Patients Europe (SCOPE) - Member
  • European Society of Dermatology Research - Member


  • ​71st American Academy of Dermatology Annual Meeting 2013 - International Registration Scholarship
  • International Clinical Dermatology Fellow - Salford Royal Dermatology Centre, Manchester UK 2013
  • 23rd World Congress Dermatology, Vancouver 2015 - Trainee Scholarship
  • Human Manpower Development Programme - Skin Cancers, Skin in Transplant Recipients, Zurich University Hospital, Switzerland 2015

Research Interests

  • Skin Cancers Epidemiology
  • Human Papillomavirus and Skin Cancers
  • Skin of Immunocompromomised Hosts


  1. ​Reply to: "A potential underestimation of the number of cellulitis recurrences in study".
    Tay EY, Fook-Chong S, Oh CC, Lee HY.
    J Am Acad Dermatol. 2015 May;72(5):e129. doi: 10.1016/j.jaad.2015.01.022.
  2. A study of topical methyl-aminolaevulinate red-light photodynamic therapy in the treatment  of actinic keratosis in Chinese patients: a Singaporean experience.
    Oh CC, Theng TS, Chong WS.
    Clin Exp Dermatol. 2015 Mar 18. doi: 10.1111/ced.12637.
  3. Pernicious anaemia presenting as hyperpigmentation.
    Tham WY, Oh CC, Koh HY.
    Clin Exp Dermatol. 2015 Mar 18. doi: 10.1111/ced.12600.
  4. Cellulitis Recurrence Score: a tool for predicting recurrence of lower limb cellulitis.
    Tay EY, Fook-Chong S, Oh CC, Thirumoorthy T, Pang SM, Lee HY.
    J Am Acad Dermatol. 2015 Jan;72(1):140-5. doi: 10.1016/j.jaad.2014.08.043.
  5. Mycobacterium haemophilum in an elderly Chinese woman.
    Oh CC, Pang SM, Busmanis I, Sun S, Sng LH.
    Int J Dermatol. 2014 Sep;53(9):1129-32.
  6. Eruptive nodules in a patient with marginal zone lymphoma.
    Tiew PY, Oh CC, Al Jajeh I, Lee HY.
    Clin Exp Dermatol. 2014 Dec;39(8):949-51. doi: 10.1111/ced.12437.
  7. Treatment of overlap cutaneous graft-versus-host disease with combination therapy of extracorporeal photopheresis and alemtuzumab.
    Oh CC, Lee HY, Chan MF, Gopalakrishnan SK.
    Int J Dermatol. 2014 Sep 10. doi: 10.1111/ijd.12634. [Epub ahead of print]
  8. Recurrent cellulitis: risk factors, etiology, pathogenesis and treatment.
    Chlebicki MP, Oh CC.
    Curr Infect Dis Rep. 2014 Sep;16(9):422. doi: 10.1007/s11908-014-0422-0.
  9. Traumatic panniculitis in a Chinese woman.
    Oh CC, Tan KB, Thirumoorthy T, Pang SM, Lee HY.
    Skinmed. 2014 Mar-Apr;12(2):127-8. 
  10. Antibiotic prophylaxis for preventing recurrent cellulitis: a systematic review and meta-analysis.
    Oh CC, Ko HC, Lee HY, Safdar N, Maki DG, Chlebicki MP.
    J Infect. 2014 Jul;69(1):26-34. doi: 10.1016/j.jinf.2014.02.011.
  11. Pancreatic panniculitis following endoscopic retrograde cholangiopancreatography.
    Oh CC, Lee HY, Chan MF, Thirumoorthy T.
    Skinmed. 2013 May-Jun;11(3):173-4.
  12. Successful extracorporeal liver dialysis for the treatment of trimethoprim-sulfamethoxazole induced fulminant hepatic failure
    Ng CT, Tan CK, Oh CC, Chang JP.
    Singapore Med J. 2013 May;54(5):e113-6.
  13. An 81-year-old man with cutaneous periumbilical purpura.
    Oh CC, Ong TH, Busmanis I, Wijaya L.
    Chest. 2012 Mar;141(3):818-21. doi: 10.1378/chest.11-1878.
  14. Weight loss in an Asian man.
    Oh CC, Low AS, Takano AM.
    Gastroenterology. 2010 Jun;138(7):e9-10. doi: 10.1053/j.gastro.2009.08.009.
  15. Cellulitis- Making Right Diagnosis and Management: A Singapore Experience
    CC Oh, SM Pang, PC Maciej, ZY Ho, T Thirumoorthy 
    Hong Kong J. Dermatol. Venereol. (2012) 20, 13-19
  16. Development of Drug-Induced Cutaneous Vasculitis in a Patient  with Relapsed Angioimmunoblastic T-cell Lymphoma Treated with Novel Bortezomib and Panobinostat Combination: A Possible Surrogate Marker of Response
    YS Lee, L Tan, CC Oh, YL Ng, YT Goh, Daryl Tan
    Cancer Sci Res Open Access 1(2): 1-4. June 2014
  17. Biopsychosocial factors associated with Prurigo Nodularis in Endogenous Eczema                         
    Oh CC, HH Li, W Lee, HL Tey; Indian Journal of Dermatology 2015;60:525.

 In Press

  1. Terra Firma-Forme Dermatosis in Singaporean Patients: The "Alcohol Wipe" Sign
    CC Oh, H Oon, SK Ng, SI Tee, A Jhigan, WS Chong; SkinMed
  2. Simultaneous Occurrence of Papulonecrotic Tuberculid and Erythema Induratum in an Asian Female
    H Oon, WS Chong, CC Oh, SH Tan, P Sen, A Tan, J Lee; SkinMed
  3. Intrahepatic cholestasis of Pregnancy in a Young Chinese Female
    CC Oh, Hazel Oon; Cutis

Research Trials

  1. ​Registry of Skin Conditions in Renal Transplant Patients in Singapore
  2. Predictors of Recurrent Cellulitis and Role of Prophylatic Antibiotics
  3. Registry of Skin Conditions in HIV Patients in Singapore