The Safety Net

Formal Medical Capacity Assessment

Senior Consultant Psychiatrist, Dr. Tan Sheng Neng


Dr Tan Sheng Neng is a consultant psychiatrist in Singapore who is qualified to make formal mental capacity assessments for matters relating to the Mental Capacity Act:

  • Lasting Power of Attorney
  • Appointment of Deputy For Mentally Incapacitated Persons
  • Establish that you possess the testamentary capacity for your WILL
Senior Consultant Psychiatrist

Dr. Tan Sheng Neng

Dr Tan was the Director of Consultation-Liaison Psychiatry Service (2017-2019) at Changi General Hospital (CGH), Singapore. He was also an Assistant Director (Psych) of the Integrated Sleep Service at CGH (SingHealth Duke-NUS Sleep Centre), where he helped develop into a department in 2018.

  • Master of Medicine (Psychiatry)
  • Master of Clinical Investigation (MCI)
  • Bachelor of Medicine and Bachelor of Surgery (MBBS)
  • Fellow of the Academy of Medicine, Singapore (FAMS)

At present, besides the clinical work in his clinic and hospitals, Dr Tan also holds the following appointments:

  • Clinical Advisor to Samaritans of Singapore (SOS)
  • Lecturer to Executive Counselling and Training Academy (ECTA)
Dr Tan has a specialised interest in neuropsychiatry. He treats patients with Sleep Disorders, Mild Cognitive Impairment and Brain trauma or injury, particularly from strokes.
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Why do I need a Formal Medical Report?

When You’re Writing A WILL

Should you engage a lawyer to help you write a WILL, your lawyer would most likely advise you to undergo a formal medical assessment to establish that you possess testamentary capacity, especially if it’s foreseeable that your testamentary capacity would be in dispute in future.

Appointment Of Deputy

When you apply to appoint someone as a deputy for your loved one who is mentally incapacitated, a specialist doctor’s affidavit and medical report are part of the required documents. This medical report must be dated within six months before the date of your application to the court for the appointment of a deputy. This specialist medical report should be obtained from a psychiatrist, which means that a general practitioner’s report is insufficient.

Other Instances That May Require A Formal Medical Assessment

There may be other instances where a formal medical assessment may be required, such as:

Power Of Attorney
Signing Of Certain HDB Documents that require a power of attorney
Signing of CPF documents that require a power of attorney

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