“My mother has become increasingly forgetful. How much will it cost to check whether she has dementia?”

This is an increasingly common question in Chennai.

The short answer is:

A basic doctor-led memory and dementia assessment may begin at around ₹1,500–₹3,000. A more detailed evaluation involving formal cognitive testing, laboratory investigations and brain imaging can easily reach ₹10,000–₹20,000 or more, depending on what is actually required.

But dementia assessment is different from many routine medical investigations.

There is no single “dementia test.”

A person cannot simply undergo a blood test, MRI scan or memory questionnaire and receive a definitive answer.

The evaluation usually happens in stages.

And importantly, not everyone complaining of memory problems has dementia.

That is why the most economical approach is often not to order every available investigation immediately. It is to begin with a careful clinical and cognitive assessment and then selectively investigate further.

What does “dementia assessment” actually mean?

Three different questions are often mixed together.

1. Is there really a cognitive problem?

Someone may complain:

“I keep forgetting names.”

“I walk into a room and forget why I came.”

“I cannot concentrate like I used to.”

“I am becoming absent-minded.”

These symptoms alone do not establish dementia.

The first job of the clinician is to determine whether there is an objective decline in cognition beyond what would normally be expected for the person’s age and background.

2. Is the cognitive problem severe enough to constitute dementia?

A person can have measurable cognitive impairment without dementia.

This may be classified as Mild Cognitive Impairment, or MCI, when cognition has declined but the person remains largely independent in everyday functioning.

Dementia generally involves cognitive decline severe enough to interfere meaningfully with independent daily functioning.

3. What is causing the cognitive decline?

Even after cognitive impairment is established, another question remains.

Is it:

• Alzheimer’s disease?
• vascular cognitive impairment?
• Lewy body dementia?
• frontotemporal dementia?
• Parkinson’s-related cognitive impairment?
• depression?
• medication-related?
• thyroid dysfunction?
• vitamin deficiency?
• sleep disorder?
• alcohol or substance related?
• previous stroke?
• another neurological or medical illness?

This third question is often where additional investigations become necessary.

Level 1: Clinical Memory Assessment — approximately ₹1,500–₹3,000

For many families, the most sensible first step is a specialist consultation with structured cognitive screening.

Current Chennai listings show psychiatric and geriatric psychiatry consultations commonly around ₹1,000–₹1,500, although specialist and hospital fees vary considerably.

A good initial assessment should include much more than asking:

“Do you forget things?”

The clinician should explore:

• When the symptoms started
• Whether the deterioration has been gradual or sudden
• Memory for recent versus remote events
• Repetition of questions
• Misplacing objects
• Getting lost
• Difficulty handling money
• Medication errors
• Changes in cooking or household activities
• Problems using phones or technology
• Language difficulties
• Changes in personality or behaviour
• Sleep
• Depression
• Anxiety
• Hallucinations
• Falls
• Tremor or movement problems
• Alcohol and medication use
• Medical and neurological history

Where possible, information should also be obtained from a family member.

This is extremely important because people with cognitive disorders may not always recognise the extent of their difficulties.

Simple Cognitive Screening: MoCA, MMSE, ACE-III and Similar Tools

A clinician may then use a brief structured cognitive assessment.

Examples include:

MoCA — Montreal Cognitive Assessment

MMSE — Mini-Mental State Examination

ACE-III — Addenbrooke’s Cognitive Examination III

and other validated bedside cognitive measures.

These tests examine different combinations of:

• orientation,
• attention,
• memory,
• language,
• verbal fluency,
• visuospatial abilities,
• executive functioning.

A basic memory consultation together with cognitive screening can therefore answer an important first question:

“Is there sufficient evidence of cognitive impairment to investigate further?”

Apollo’s dementia services similarly describe cognitive assessment, neurological evaluation, blood investigations and brain imaging as components that may contribute to a comprehensive dementia evaluation.

But a MoCA score is not a dementia diagnosis

This point deserves emphasis.

If somebody scores poorly on a cognitive screening test, it does not automatically mean Alzheimer’s disease.

Test scores can be affected by:

• education,
• language,
• hearing impairment,
• vision problems,
• anxiety,
• depression,
• sleep deprivation,
• medications,
• acute illness,
• cultural factors.

Similarly, an intelligent and highly educated person in the early stages of cognitive decline may sometimes perform relatively well on simple screening.

Therefore:

Cognitive screening should support clinical judgement—not replace it.

Why the family interview matters so much

One of the most valuable diagnostic tools in dementia costs nothing.

It is the history provided by somebody who knows the patient well.

Consider two 70-year-olds who both score similarly on a memory test.

The first person still manages finances, medications, travel, shopping and household responsibilities independently.

The second person has recently:

• paid the same bill three times,
• forgotten to switch off the stove,
• become lost near home,
• repeatedly missed medications,
• and transferred money incorrectly.

The cognitive scores may look similar.

Clinically, however, these are very different situations.

This is why dementia assessment should include function, not simply memory scores.

Not All Forgetfulness Is Alzheimer’s Disease

Perhaps the greatest value of an initial evaluation is preventing premature labelling.

Families understandably worry about Alzheimer’s disease whenever an older person becomes forgetful.

But several treatable conditions can impair cognition.

Depression

Severe depression can produce substantial problems with memory, concentration, processing speed and motivation.

In older adults, this can sometimes resemble dementia.

Sleep disorders

Poor sleep, obstructive sleep apnoea and severe insomnia can impair attention and memory.

Medication effects

Sedatives, anticholinergic medications and combinations of multiple medicines can affect cognition, particularly in older adults.

Thyroid disease

Abnormal thyroid function can contribute to cognitive symptoms.

Vitamin deficiencies

Vitamin B12 and other nutritional abnormalities may contribute in selected patients.

Alcohol and substance use

Long-term alcohol exposure and some medications or substances can significantly affect cognition.

Delirium

A sudden deterioration over hours or days is very different from gradually progressive dementia.

Acute confusion can indicate infection, dehydration, metabolic disturbance, medication toxicity or another medical illness and may require urgent evaluation.

The goal of dementia assessment should therefore never be simply:

“Find Alzheimer’s disease.”

It should be:

“Understand why this person’s cognition has changed.”

Level 2: Blood Tests for Reversible or Contributing Causes

If genuine cognitive decline is suspected, laboratory investigations are commonly considered.

The exact panel should be individualized rather than automatically ordering dozens of tests.

Depending upon the history, investigations may include:

• complete blood count,
• blood glucose or HbA1c,
• kidney function,
• liver function,
• electrolytes,
• thyroid function,
• vitamin B12,
• folate,
• and additional investigations when clinically indicated.

Laboratory testing is particularly useful because it may identify medical factors contributing to cognitive symptoms.

The cost varies substantially according to which investigations are required and where they are performed.

For some patients, only a limited set is necessary.

Others—particularly those with unusual presentations, rapid deterioration or significant medical comorbidity—may require more extensive investigation.

Level 3: Detailed Neuropsychological Assessment

A five- or ten-minute cognitive screening test cannot answer every question.

Sometimes the clinician needs to know precisely which cognitive systems are impaired.

This is where formal neuropsychological assessment can become valuable.

A neuropsychological battery may examine:

• verbal learning,
• visual memory,
• delayed recall,
• recognition,
• attention,
• processing speed,
• working memory,
• language,
• naming,
• verbal fluency,
• visuospatial ability,
• executive functions,
• inhibition,
• planning.

This creates something closer to a cognitive profile rather than simply producing one overall score.

Why does the cognitive profile matter?

Different disorders can produce different patterns.

For example, one patient may predominantly show problems learning and retaining new information.

Another may have relatively preserved memory but major executive dysfunction.

Another may primarily develop language problems.

Another may show visuospatial impairment.

These patterns cannot independently determine the diagnosis, but when combined with clinical history and imaging they can substantially strengthen the formulation.

Formal cognitive assessment can therefore be particularly helpful in:

• early or subtle cognitive decline,
• highly educated individuals,
• younger patients,
• atypical presentations,
• differentiating psychiatric from neurodegenerative symptoms,
• establishing a baseline for future comparison,
• documenting progression.

The price depends on the depth of testing, the professional conducting it and the battery required.

Level 4: MRI or CT Brain Imaging

Some patients undergoing dementia evaluation require structural brain imaging.

MRI can help identify findings such as:

• previous strokes,
• significant vascular disease,
• brain tumours,
• hydrocephalus,
• structural abnormalities,
• patterns of cerebral atrophy.

It can therefore help both with excluding alternative causes and refining the likely type of cognitive disorder.

Current Chennai pricing demonstrates why imaging can substantially increase the total cost of evaluation. Apollo 24/7, for example, currently lists some MRI brain services in Chennai starting around ₹6,000, while MRI brain with contrast starts around ₹9,000 and can cost considerably more at some centres.

But an important principle applies here as well:

Not every patient needs contrast MRI, and not every person with an occasional memory complaint needs an MRI immediately.

Imaging should answer a clinical question.

What about PET scans, CSF and Alzheimer’s biomarkers?

Modern dementia medicine is moving rapidly toward biomarker-based diagnosis.

In selected circumstances, specialists may consider tests involving amyloid, tau, PET imaging, cerebrospinal fluid or newer blood-based biomarkers.

These technologies are scientifically exciting and are becoming increasingly relevant, particularly as disease-modifying treatments for Alzheimer’s disease evolve.

But they should not become routine screening tests for every 65-year-old who misplaces their spectacles.

Advanced biomarker investigations are generally most useful when the diagnosis remains uncertain or when establishing the underlying pathology would materially affect management.

Their costs are therefore best considered separately from routine memory assessment.

So How Much Does Dementia Diagnosis Cost in Chennai?

A practical way to understand the cost is through a staged model.

Basic Memory Evaluation: approximately ₹1,500–₹3,000

This may include:

• Specialist consultation
• Detailed history
• Family/caregiver interview
• Mental-state examination
• Basic neurological observation
• Medication review
• MoCA/MMSE/ACE-III or another cognitive screen
• Functional assessment
• Initial diagnostic formulation

For many people worried about mild forgetfulness, this should be the starting point.

It may establish that further testing is unnecessary—or identify exactly which investigations are worth doing.

Intermediate Dementia Evaluation

If cognitive impairment is identified, the next level may include:

• more detailed cognitive assessment,
• laboratory investigations,
• depression and psychiatric assessment,
• medication review,
• functional evaluation,
• caregiver assessment.

Depending upon which investigations are required, overall costs may rise into several thousand rupees.

Comprehensive Dementia Assessment: often ₹10,000–₹20,000 or more

A more comprehensive evaluation may involve:

• Specialist consultation
• Detailed cognitive history
• Caregiver interview
• Cognitive screening
• Formal neuropsychological assessment
• Blood investigations
• MRI brain
• Functional assessment
• Behavioural and psychiatric assessment
• Review of existing medical conditions
• Integrated diagnostic formulation
• Treatment recommendations
• Caregiver counselling

Once MRI and extensive neuropsychological testing are included, it is therefore quite possible for the overall diagnostic work-up to enter the ₹10,000–₹20,000-plus range.

This does not mean every patient should spend ₹20,000.

It means the diagnostic pathway should expand only when additional information is likely to change the diagnosis or management.

The ₹20,000 question: Do we really need all these tests?

This is probably the most important question families should ask.

Imagine an 82-year-old with a clear three-year history of progressively worsening memory, repetitive questioning and increasing dependence on family members.

Compare that with a 58-year-old senior professional who remains completely independent but has noticed subtle deterioration in memory and planning over six months.

These two people may require very different assessment pathways.

The first diagnosis may be relatively apparent clinically, although investigation may still be appropriate to establish cause and exclude contributors.

The second may require considerably more detailed neuropsychological testing and investigation because the symptoms are subtle and the consequences of misdiagnosis are significant.

Therefore:

The complexity of assessment should follow the complexity of the clinical problem.

Avoid the “scan-first” approach

One common mistake in memory assessment is beginning with an MRI and trying to diagnose dementia from the scan.

Brain imaging is extremely useful.

But dementia remains a clinical syndrome.

A scan must be interpreted in the context of:

• symptoms,
• progression,
• cognitive testing,
• functional decline,
• medical history,
• neurological findings.

An older person’s MRI may show cerebral atrophy or white-matter changes without explaining the complete clinical picture.

Similarly, someone in the early stages of a neurodegenerative disease may not necessarily have dramatic abnormalities on routine imaging.

The scan is one part of the assessment—not the diagnosis itself.

Avoid the opposite mistake: “He remembers my name, so he cannot have dementia”

Families sometimes miss early dementia because the person can still hold a conversation normally.

Early cognitive disorders may be surprisingly subtle.

A person may:

remember relatives,

discuss politics,

watch television,

tell stories from 30 years ago,

and appear socially appropriate,

while simultaneously losing the ability to:

manage finances,

remember recent conversations,

organize medications,

learn new procedures,

or navigate unfamiliar environments.

Remote memory and social conversation can remain relatively preserved while other cognitive abilities deteriorate.

This is why structured assessment matters.

Dementia Assessment Is More Than Memory Testing

Modern dementia evaluation should look beyond memory.

Cognitive disorders can affect:

Attention

Executive function

Language

Visuospatial abilities

Social cognition

Behaviour

Judgement

Personality

Some dementias may initially present with behavioural change or language impairment rather than obvious forgetfulness.

The question should therefore not simply be:

“How good is the patient’s memory?”

It should be:

“What has changed in the person’s cognition, behaviour and ability to function independently?”

What Should Families Receive at the End of an Assessment?

A good dementia evaluation should ideally answer:

Is cognitive impairment actually present?

Is this normal ageing, Mild Cognitive Impairment or dementia?

Which cognitive domains are affected?

Could depression, medication, sleep or another medical condition explain some of the symptoms?

Are there potentially reversible contributors?

Is Alzheimer’s disease likely, or does another dementia syndrome appear more probable?

Does the patient require MRI or further neurological investigation?

What should be done about medications?

Can the person continue handling finances?

Is independent driving still safe?

What changes should the family make at home?

How should vascular and metabolic risk factors be managed?

What should caregivers expect over the coming months and years?

That is far more valuable than simply giving someone a MoCA score.

Early Assessment Does Not Mean Early Labelling

People sometimes avoid memory clinics because they fear being “labelled with dementia.”

That is unfortunate.

Early evaluation can sometimes establish that the problem is not dementia at all.

And when Mild Cognitive Impairment or dementia is present, earlier assessment creates an opportunity to:

• address reversible contributors,
• optimize cardiovascular and metabolic health,
• review inappropriate medications,
• improve sleep,
• treat depression,
• plan future care,
• improve home safety,
• support caregivers,
• establish a cognitive baseline,
• and begin appropriate treatment when indicated.

The purpose of early diagnosis is not simply to name a disease.

It is to increase the number of things that can still be done while the patient retains independence and decision-making capacity.

Memory & Dementia Assessment in Chennai

My approach to memory disorders is therefore stepwise rather than investigation-heavy from the beginning.

A clinical interview, collateral history from the family and structured cognitive assessment remain the starting point.

Where required, the assessment can then be expanded to include:

• MoCA / ACE-III and structured cognitive profiling
• detailed neuropsychological assessment,
• depression and behavioural assessment,
• review for reversible medical contributors,
• laboratory investigations,
• neuroimaging,
• and specialist referral when the clinical picture requires it.

The purpose is not simply to detect “poor memory.”

It is to understand the patient’s cognitive profile, distinguish normal ageing from MCI and dementia, explore potentially reversible contributors and develop a practical treatment and caregiver plan.

Dr. Srinivas Rajkumar T

Senior Consultant Psychiatrist
MD Psychiatry — AIIMS New Delhi

Special interest in Geriatric Psychiatry, Memory Disorders, Dementia and Technology-Assisted Cognitive Assessment

Mind & Memory / Dementia Assessment — Chennai

Consultations are available at:

Apollo Clinic, opposite Phoenix Market City, Velachery, Chennai

Appointments: +91 85951 55808
Email: srinivasaiims@gmail.com

A memory complaint does not automatically mean dementia.

And a dementia evaluation does not automatically require an expensive battery of tests.

Start clinically. Measure cognition properly. Investigate selectively. Treat the person—not merely the test result.