Adult Combined ADHD & Autism Assessments in Milton Keynes

Many adults who suspect ADHD are later found to have autism too, and vice versa. The two conditions share overlapping traits, and a partial assessment that misses one can leave you with an incomplete picture of yourself and inadequate support.

At Bloom Clinical, our adult combined ADHD and autism assessment in Milton Keynes assesses both conditions together in a single, coordinated pathway, giving you a complete and accurate diagnosis, a comprehensive written report, and clear guidance on next steps. All for £2,350, with no GP referral required.

adult combined ADHD & Autism assessment

Why Consider a Combined Assessment?

ADHD and autism are both neurodevelopmental conditions, and they co-occur far more often than many people realise. For people who suspect they may have one condition, it is well worth exploring whether the other might also be present before committing to a single-condition assessment.

The Risk of a Partial Diagnosis

If only one condition is assessed and diagnosed, the other can continue to go unrecognised, sometimes for years. This can mean:

  • Strategies or medication that help with one condition but don’t address the full picture
  • Support plans at work or university that don’t fully account for your needs
  • Continued confusion about why certain challenges persist despite having a diagnosis
  • The cost and time of returning for a second assessment at a later date

How a Combined Assessment Differs from Two Separate Ones

A combined assessment is not simply two assessments back-to-back. It uses an integrated clinical pathway specifically designed to distinguish between overlapping traits, for example, attention difficulties that may be rooted in ADHD, autism, or both. Your case is reviewed by a multidisciplinary team who consider both conditions simultaneously, producing a single report that reflects the full picture of your neurodevelopmental profile.

This is more clinically thorough, more cost-effective, and often produces clearer, more actionable recommendations than two separate assessments conducted in isolation.

Could This Assessment Be Right for You?

A combined adult assessment may be particularly relevant if any of the following applies to you:

  • You have already been told you may have ADHD but have been advised to also explore an autism diagnosis
  • You recognise signs of both conditions in yourself, but are unsure which is more prominent
  • You have received an ADHD diagnosis, but still feel that something is being missed
  • You are a late-diagnosed or self-identifying autistic adult who also struggles with attention, impulsivity, or organisation
  • A previous assessment returned an inconclusive or ‘borderline’ result for one condition
  • You identify with the female autism profile, where masking and social mimicry have historically led to underdiagnosis
  • You want to avoid the cost and delay of potentially needing two separate assessments

If you are unsure which assessment pathway is right for you, our free 15-minute consultation is the best starting point. We will listen carefully to your concerns and give you an honest recommendation with no obligation to book.

Recognising ADHD and Autism in Adults

Because the two conditions share many surface-level characteristics, it can be difficult to know which, or whether both, are present without a formal assessment. Here is what to look for.

Signs of ADHD in Adults

  • Persistent difficulty concentrating, particularly on tasks you find low-interest or repetitive
  • Poor time management, frequently running late, missing deadlines, or losing track of time
  • Impulsive decision-making or speaking before thinking
  • Restlessness or an inability to relax, even in low-pressure situations
  • Difficulty organising tasks, prioritising, or following through on plans
  • Forgetting appointments, conversations, or commitments regularly
  • Emotional dysregulation, intense reactions, low frustration tolerance, or rapid mood shifts
  • A pattern of underperformance relative to your perceived ability
adult combined ADHD & Autism assessment

Signs of Autism in Adults

Autism is frequently missed until adulthood, particularly in women and people who have developed strong masking strategies. Common signs include:
  • Difficulty reading social cues, body language, or unwritten social rules
  • Feeling exhausted after social interactions, even enjoyable ones. This is sometimes called ‘social fatigue’ or ‘burnout’
  • A strong preference for routines and predictability, and heightened distress when these are disrupted
  • Intense, focused interests in specific subjects or topics
  • Sensory sensitivities, to sound, light, texture, smell, or touch, that affect daily life
  • A long history of feeling ‘different’ from peers, or of masking or performing a version of yourself in social settings
  • Difficulty with abstract thinking, ambiguous instructions, or tasks that require ‘reading between the lines’
  • Taking language very literally, or finding sarcasm, irony, and indirect communication confusing

The Overlap: Where ADHD and Autism Look Alike

Several traits appear in both conditions, our combined assessment pathway, using tools designed to differentiate between them, is clinically important. These overlapping areas include:
  • Difficulties with executive function (planning, organising, initiating tasks)
  • Sensory sensitivities
  • Social difficulties and challenges with relationships
  • Emotional regulation and managing frustration
  • Inconsistent performance at work or in education
An experienced multidisciplinary team can identify how these traits manifest in your specific case and determine whether one condition, both, or neither best explains what you are experiencing.

What Happens at a Combined ADHD & Autism Assessment?

Our combined adult assessment follows an integrated clinical pathway that has been specifically designed to assess both ADHD and autism within a single, coordinated process. Here is what to expect:
  1. Pre-assessment screening: we send you a short online form and a set of validated psychometric questionnaires covering both ADHD and autism traits. These are completed at your own pace before your appointment.
  2. Initial clinical interview: a detailed, structured conversation with one of our specialist clinicians covering your personal history, developmental background, current symptoms, and how they affect your daily life.
  3. Combined diagnostic assessment: using gold-standard tools validated for both conditions. For autism, this includes the ADOS-2 (Autism Diagnostic Observation Schedule), the most widely recognised autism assessment instrument in use today. For ADHD, we use the QB Test and Conners 4. These sessions take place in person at our Milton Keynes clinic or they can be conducted online.
  4. Multidisciplinary team review: your clinicians meet as a team to analyse all findings from both assessment pathways together, ensuring that overlapping traits are properly attributed and that the conclusions reflect your complete neurodevelopmental profile.
  5. Comprehensive written report: a detailed report covering both conditions, your diagnosis (or diagnoses), clinical observations, and specific recommendations. This includes tailored guidance for workplace accommodations, educational support, and next steps for treatment or ongoing support.

How Long Does the Process Take?

The combined assessment process typically takes 8 weeks from initial contact to report delivery. Each clinical session lasts approximately 1 hour.

Where Are Assessments Held?

All combined adult assessments take place in person at our Milton Keynes clinic: Whitsundoles Farm, Broughton Road, Milton Keynes, MK17 8BU. There is free parking on site. If an in-person appointment is not possible, please contact us to discuss whether any elements can be accommodated online.

Gold-Standard Diagnostic Tools

Our combined assessment uses a full suite of validated, NICE-compliant diagnostic instruments, not a basic screening questionnaire. These include:

For Autism Assessments

  • ADOS-2 (Autism Diagnostic Observation Schedule, 2nd Edition): the internationally recognised gold-standard observational instrument for autism diagnosis.

For ADHD Assessments

  • QB Test: a digital neuropsychological assessment measuring activity levels, attention, and impulse control through objective computer-based tasks.
  • Conners 4: a widely used, validated rating scale assessing ADHD symptoms and their impact across work, relationships, and daily functioning.

Multidisciplinary Review

All assessment findings are reviewed by our full clinical team before any diagnosis is confirmed. This multi-clinician review is what separates a thorough, defensible assessment from a rushed single-clinician opinion, and it is included as standard in every Bloom Clinical assessment.

Assessment Prices

Assessment Type

Price
Adult Combined ADHD & Autism Assessment

£2,350

Adult ADHD Assessment (standalone)

£850

Adult Autism Assessment (standalone)

£1,850

The £2,350 combined assessment price is fully inclusive. There are no additional charges for your pre-assessment questionnaires, clinical sessions, multidisciplinary team review, full written report, or supporting letters for your GP, employer, or university.

Why Choose Bloom Clinical for Your Combined Assessment in Milton Keynes?

Specialist Multidisciplinary Team

Your assessment involves a team of qualified clinicians, not a single practitioner. Our assessors hold relevant postgraduate qualifications and are registered with recognised professional bodies. Full profiles are available on our Meet the Team page.

NICE-Compliant, Recognised Reports

Our assessments and reports are conducted in accordance with NICE guidelines. They are recognised by the NHS, GPs, CAMHS, employers, universities, and local authorities across Milton Keynes and the UK. If you need a letter for your employer or an access arrangements application for your university, we include that as standard.

Locally Based in Milton Keynes

We are based at Whitsundoles Farm in Milton Keynes. Our team is rooted in the local area and familiar with the Milton Keynes referral landscape, local school and GP expectations, and the Bedfordshire, Luton and Milton Keynes NHS systems.

No GP Referral Required

You can contact us directly and begin the assessment process without waiting for a GP appointment or referral. This is particularly important given that NHS waiting times in the MK area for neurodevelopmental assessments can be several months long.

Free Initial Consultation

Not sure whether a combined or single-condition assessment is right for you? Book a free 15-minute call with our team. We will discuss your concerns honestly and recommend the most appropriate assessment pathway for your situation, with no sales pressure and no obligation to book.

The Bloom Model

After Your Assessment: What Comes Next?

Receiving your diagnosis is the start of a new chapter, not the end of the process. Our team will talk you through your results and help you plan appropriate next steps, which may include:

Medication (for ADHD)

If ADHD is confirmed and you wish to explore medication, we can discuss the options available and liaise with your GP regarding a shared care agreement for ongoing prescribing and monitoring.

Workplace Adjustments

Both ADHD and autism are recognised as disabilities under the Equality Act 2010. Your combined report will include specific, evidence-based recommendations for reasonable workplace adjustments, which you can share directly with your employer or HR department.

University and Educational Support

If you are in higher education, your report can support applications for Disabled Students’ Allowance (DSA), exam access arrangements, and additional academic support. Our reports are written with these applications in mind.

Supporting Letters

Your report is accompanied by tailored letters for your GP, employer, university, or any other relevant organisation, at no additional charge.

Fantastic people, wonderful service and a very professional team from start to finish. Can't thank them enough!!
Scott Williams

Serving Milton Keynes and Surrounding Areas

Our clinic is located at Whitsundoles Farm, Broughton Road, Milton Keynes, MK17 8BU, with free on-site parking and easy access from across the region. We see adult patients from throughout Milton Keynes and the surrounding areas, including:

  • Bedford, Newport Pagnell, Woburn Sands, and Olney
  • Bletchley, Fenny Stratford, and Stony Stratford
  • Buckingham, Leighton Buzzard, and Dunstable

If you have any questions about travelling to our Milton Keynes clinic, please call us on 01727 530247 and we will be happy to help.

FAQs

What is included in a combined ADHD and autism assessment for adults?

Our adult combined assessment includes pre-assessment questionnaires covering both conditions, a structured clinical interview, a full diagnostic assessment session using gold-standard tools (including the ADOS-2 for autism and the QB Test and Conners 4 for ADHD), a multidisciplinary team review, and a comprehensive written report with recommendations. Supporting letters are included at no extra cost.

A combined assessment uses an integrated clinical pathway designed to assess both conditions simultaneously, allowing clinicians to distinguish between overlapping traits in a single, coordinated process. Two separate assessments conducted independently may not have the same clinical cohesion. A combined assessment is also more cost-effective and avoids the delay of returning for a second assessment.

No. You can contact Bloom Clinical directly without a GP referral. Call us on 01727 530247 or complete our short screening form to begin the process.

Our adult combined ADHD and autism assessment is £2,350, fully inclusive. This covers all clinical sessions, questionnaires, your multidisciplinary review, and your written report with supporting letters.

The full process typically takes around 8 weeks from initial contact to report delivery. Clinical sessions last approximately 1 hour each.

Yes. Our assessments are conducted in line with NICE guidelines by registered, qualified clinicians. Our reports and diagnoses are recognised by the NHS, GPs, employers, universities, and local authorities across Milton Keynes and throughout the UK.

If the assessment finds evidence for only one condition, your report will reflect that, along with clear clinical reasoning. You will not be given a diagnosis that the evidence does not support. If neither condition is confirmed, we will include our clinical findings and recommendations for any appropriate next steps or onward referral.

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Support for ADHD, Mental Health, and Autism
in Adults and Children.

Whether you require a single assessment to gain clarity or prefer ongoing therapy for consistent support, our tailored services are designed to meet your unique needs. 

We understand that mental health and neurodevelopmental challenges can impact every aspect of life, from personal relationships to daily routines.

That’s why we focus on providing compassionate, professional care to empower you with understanding and practical strategies. With expert-led assessments and therapy options, we’re here to support you every step of the way, helping you navigate your journey towards improved well-being and confidence.