Oxleas Adult Autism Assessment Service Bexley, Bromley, Greenwich

The Oxleas Adult Assessment service offers ASD assessments to adults over 18, without a learning disability who are registered with a GP in Bromley, Bexley and Greenwich.  

The service offers a full ASD diagnostic assessment to adults who have not been assessed or received a diagnosis in childhood.  Access to the service is via GP referral, or by referral from another professional who is working with you. 

Once referred, you will be asked to complete two screening questionnaires and if the results of the questionnaires suggest that you are reporting sufficient features of possible Autism, you will be put on the waiting list for a full diagnostic assessment.

The outcome of the assessment will indicate whether the threshold for a diagnosis is met or not.  Adults would then be signposted to relevant support services as needed.  

The team is made up of a range of professionals including Clinical Psychology, Occupational Therapy, and Speech & Language Therapy. All staff have specialist training in autism assessment and diagnosis. Once the assessment begins, adults are allocated a lead clinician and the assessment will be carried out over a short series of appointments. A feedback appointment will then be arranged.

We are not commissioned to provide ongoing support to Adults with ASD and we cannot see people who already have a diagnosis.  The service operates Monday - Thursday 9am to 5pm from various sites across Bromley, Bexley and Greenwich boroughs.

Oxleas Patient Experience survey

The Oxleas Patient Experience survey gives you the opportunity to feedback on the care and treatment you have received. We also encourage your friends, family and carers to also provide feedback. Hearing your views gives us a better understanding of the needs of our patients, families and carers which helps us to make sure that we are providing a good standard of care. 

The short survey only takes a few minutes to complete and you can provide a written comment explaining what you think is working well and what is not. The Patient Experience team will collect the results of the surveys and these are shared with the relevant departments and management teams. This helps us to shape our services to continually improve the quality of the care and treatment we provide.

Public phone number:

020 8659 2151



Following on from my last comment of November 10th 2021 after which I spoke to a lovely man who said that my appointment would be in July 2022. I am just getting very anxious about it being nearly July and I don't think I missed a letter but could you please check for me and let me know. Thank you in advance for a swift response to allay my fears. Lea.

Dear Leanna,

Thank you for your comment.
We have contacted you and spoken about your schedule.

Kind regards

Dr Andrea Centonze
Principal Psychologist and Clinical Lead
Oxleas Adult Autism Service

I didn't want to bother someone by phone as I'm not sure who to talk to but I just wanted to know that my referral is still in the pile for an ASD Assessment at beckenham beacon and if possible to know how much longer I can expect to receive a date for the appointment? I sent back the questionnaires that were posted to me I think nearly a year ago but not too sure, I know it's a long waiting list at the moment but I'd appreciate if someone could let me know.

Dear Molly

Thank you for your comment and we understand the team are going to contact you with an update.


PALS - Patient Advice & Liaison Team

Hello. I have received your letter which states that I didn't score high enough on the questionnaires that I had to fill out for me to have a diagnostic assessment. Is there a way I can appeal this? I really feel as though I need an assessment as I believe, without a doubt, that I have ASD. I understand that all healthcare is under a lot of pressure at the moment due to Covid (as I work in healthcare myself).
Please would you reconsider my assessment?
Thank you.

Dear Erin

Thank you for your comment. Can you please contact the Oxleas Adult ASD Assessment Service at 0208 676 5453 and they will be able to assist you.

Kind regards

Dr Andrea Centonze
Principal Psychologist and Clinical Lead
Oxleas Adult ASD Assessment Service

It has been more than a year since I've been put on the waiting list for an ASD assessment. I would like to find out where am I in the queue and if there is an approximate date for my assessment. I have been trying to talk to someone on the phone but couldn't get through to anybody for a very long time. I've spent numerous hours waiting for someone to pick up with no avail. It's a very frustrating experience. It would really help to get any info about my assessment. I am very looking forward to the appointment and getting the diagnosis. My anxiety is getting worse month by month.
Hoping to hear from someone soon. Thank you

Dear Igor

Thank you for your comment and we understand the team have contacted you to advise you when you will be seen by our Oxleas Adult ASD Assessment Service.

Kind regards

Dr Andrea Centonze
Principal Psychologist and Clinical Lead
Oxleas Adult ASD Assessment Service


I have been waiting patiently for the last two years for an autism assessment after filling the questionnaire in at erith medical centre and really would like to know how much longer of a wait there is. My anxiety with all of the constant demands and change in the world is really taking me to a dark place. Please can somebody let me know when I will be seen?

Thank you


Many thanks Leanne,
you will be contacted by a member of our staff with the approximate date of when you will be seen by our Oxleas Adult ASD Assessment Service

Kind regards

Dr Andrea Centonze
Principal Psychologist and Clinical Lead
Oxleas Adult ASD Assessment Service
ASD (non LD) Transforming Care Programme Lead

I was assessed by Helen in 2019, and she recommended I obtain confirmation from a cardiologist that it would be OK for me to commence simulant medication for my ADHD (C), she also mentioned that I might also have ASD traits. Since then it has been a roller-coaster, and establishing that I also have a congenital heart condition, which means no cardiologist will sanction simulant medication. I feel at a loss with the NHS on this, as Helen discharged me on the basis that she would reopen once I had my OK. So, now I've had to be referred to Oxleas again to see if there is anything that can be done to help me with my worsening condition, a wait that could be well over a year or so. Given that I'm in my 60's, such a wait just for a follow up is absolutely ridiculous, as time is even more precious at my age, even more so with a congenital heart condition. At this point, I really do not know what to ask of Oxleas, as I've lost all hope of ever finding a way to reduce the symptoms I have.

Dear Steve

Thank you for your comment which has been forwarded to the appropriate Team and the Team Manager will be making contact with you to discuss.


PALS (Patient Advice & Liaison Service)

I’ve been searching the oxleas nhs website for the adult adhd service
It appears you have a full webpage full of information for the ASD assessment services and I would like to know where the ADHD one is?
How can an adult in Bexley access this service if there is no information?
How do Oxleas propose to address the fact that there is no webpage ,clear signposting ,information and support for this life impacting disability ?
I’d appreciate an urgent response , here and via email , so I can convey this information to the adhd community, so they may locate and make full use of this service . As we are no longer using The South London and Maudesley ADHD/ASD service I would have thought that Oxleas would have ensured that BOTH ASD &ADHD patients would be able to access this information easily to pursue their diagnosis

Thank you

Dear Michelle

Thank you for bringing this to our attention. It is very important that clear information is provided about the Adult ADHD diagnostic service.

The Manager of the Adult ADHD service will be preparing some information to go on the website as soon as possible. In the meantime, if you have any specific questions about the service, Mr Sowter can be contacted by email at tim.sowter@nhs.net'

Kind regards

Tim Sowter
Locality Manager (Bromley East) and Trust Wide Adult ADHD Team Manager
Oxleas NHS Foundation Trust

I had a call last week about adult ADHD and they said they would be referring me to the team to get an appointment for an in-person assessment. I was just wondering what is happening with that and when I can be expecting a call about an appointment?

I have had the assessment and been told I have been diagnosed with ADHD and awaiting confirmation but I have not heard anything else and it's been a month already. I am trying to call someone to find out what is happening and if I can take any medication to help

Dear Terry,

We are sorry for the delay in responding. We understand the team are in regular contact and this is now resolved.

Best wishes

Tim Sowter
Trust Wide Adult ADHD Team Manager

I have been told that there is a 42 month waiting list to be seen. I have been referred by Oxleas Erith Center and met the Autism spectrum. I also struggle with sever OCD and feel let down by Oxleas having been under them for 11 years with them unable to help treat me regarding the OCD. I’m desperate for help and I have no where else to turn to. Please could you give me some information about what outcome I can expect.
Kind regards

Dear Samantha

I'm sorry that you have been unsure where to turn for help. I will be contacting you directly by email once I have all available information to address your specific circumstances in more detail. I can confirm though that we have waiting times of approximately 50 months for assessments in our Adult Autism Assessment Service.

Unfortunately, waiting times in Bexley have grown due to an increase in referrals for Adult Autism assessments but without additional funding to increase the staffing available to increase the rate of assessments. If you are unsatisfied with the wait the service suggests that individuals register a complaint with the Clinical Commissioning Group who allocate funding for health services via the contact details below:

Email: SELCCG.contactus@nhs.net
Tel: 0800 328 9712

kind regards

Dr Jo Cook
Consultant Clinical Psychologist & Accredited CAT Therapist

I would like to get information regarding adult asd assessment could someone please direct me in the right direction or contact me with details provided
With thanks

I've been waiting for an adult assessment for going on 3 years since the first GP referral. When I had my initial screening, the person who called me from Bromley Oxleas NHS Trust didn't know I hadn't taken the questionnaire. Another 3 month wait. Then I received a letter in July 2019 saying the wait would be 12-14 months for my final assessment and they would let me know if there would be any delays to my wait. Fine. Obviously coronavirus happened, delays are expected. Now we are in December and I've had no contact from Oxleas. I called back in October to ask what the situation would be, was told someone would call me back. No one did. I have since tried to call a number of times to find out if I'm even still on the waiting list and what kind of wait I can expect now and the call has been disconnected 3 times. I'm at my wit's end. I can't get the help I need until I get my assessment and it feels like I'm just being left behind. This service is absolutely disappointing and incompetent from my experience. I just need help.

Dear Kat

Thank you for contacting us about your referral. We are concerned to hear the experience you have had. From the information you have provided we have endeavoured to identify the service that you have been referred to and a representative of that team will be contacting you by tomorrow on the number you have given to get more detail and to look into how we can support you and respond to your concerns.


Adrian Dorney
Associate Director
Bromley Directorate

In January 2018 I went to Erith hospital where I filled out 2 questionnaires to see whether I was on the autism spectrum and I was told I scored quite high and would need to be assessed and was discharged from Erith Hospital. As there isn't many people who diagnoses adults I was told that I would have about a 19-20 month wait. I was told that this assessment would probably take place in August 2019. I wanted to contact the people who assess autism in adults to ask whether that wait has changed but I can't find the contact details for the people who do the assessment for adults. Do you know?