Obtaining a diagnosis is difficult for adults. Often, diagnosticians only work with children, or they have a dated and incomplete notion of how autism looks in adults– a fact that is especially true for women and non-binary autistics.

Australia

Here’s a good place to start, it includes a list of diagnosticians
AutismSA.org * How Do I Get a Diagnosis?

New South Wales

• Hornsby:
  • ETOH
• Sydney:
  • Professor Ian Hickie, University of Sydney Brain and Mind Center
  • Renee Ferris, Riverlands Therapy Services Western Sydney
  • Steve Den-Kaat, Diverse Minds Psychology Clinic Sydney
• Bondi Junction:
  • Natalia (Lia) Ranson, Institute for Healthy Living

Queensland

• Brisbane:
  • Minds & Hearts clinic is Tony Attwood’s clinic

Victoria

• Melbourne:
  • Dr Janine Manjiviona, Dr. Janine Manjiviona & Associates
• Kew East:
  • The ASD Clinic

Canada

British Columbia:

• Vancouver Area:
  • Grace Iarocci, Autism and Developmental Disorders Lab
  • Spectrum Works Consulting Group
  • RELATEDMINDS PSYCHOLOGICAL SERVICES, Adult Autism and Asperger’s

Ontario:

• Hamilton:
  • Dr. Marc Woodbury-Smith, St. Joseph’s Hospital – West 5th Campus, Developmental Dual Diagnosis Program 905-522-1155 x36768
• Owen Sound:
  • Dr. Karen Baker, The Redpath Centre
• London:
  • Dale Munro, Social Worker specializing in Asperger’s. He has Asperger’s himself. He is THE BEST!

• Toronto:
  • Dr. Pushpal Desarkar, The Centre for Addiction and Mental Health (CAMH)
  • Dr. Lillian Burke, The Redpath Centre

Quebec:

• Montreal:
  • Dr. Isabelle Henault (ihenault@internet.uqam.ca), Psychologue-Montreal.ca

Netherlands

• North Brabant:
  • Reinier van Arkel, Get Diagnosed by a whole team of ASD-specialists
• Eindhoven:
  • Dr. Annelies Spek, Autisme Bij Volwassenen NVA
• Rotterdam and the Hague:
  • SARR, specialised centre for autism, Female ASC Professionals

New Zealand

• Hamilton:
  • Tanya Breen, Clinical Psychologist, www.tanyabreen.co.nz
• Wellington & Wairarapa:
  • Kim Coldham-Fussell, Clinical Psychologist

United Kingdom

• Autism Diagnosis for Adults, National Autistic Society

England

• Cambridge:
  • The National Health Servise (NHS)
• Chesire:
  • Dr. Linda Buchan, Axia ASD
• Corby:
  • Action for Asperger’s
• East Sussex:
  • Dr. Andrew Arthur, Clinical Psychologist/Psychotherapist
• Middlesbrough:
  • Dr. Ruth Ciersen, St. Lukes
• Sheffield:
  • Dr Richard Smith, Sheffield Autism Centre. Provided a really good 20+ page in depth diagnosis picking up on a lot of different things. Also provided extra form to help explain things when applying for benefits as their forms don’t really cover asd/ mental illness.
  • Dilemma Consultancy in Human Relations
• Surrey:
  • Dr. Louise Connor
• Warrington:
  • Spectrum Northwest
• Wiltshire:
  • Mike Larcombe, Department of Neuropsychology 25 Erleigh Road, Reading RG1 5LR
• Northwest England:
  • Hildegard Schakel
  • Elaine Nicholson Action for Aspergers
  • Sloane Court Clinic
  • Spectrum-Psychology
  • Cygnet Health Diagnostic-Assessment Clinic
  • Sheffield Adult Autism and Neurodevelopmental Service (SAANS)
  • Bristol Autism Spectrum Service
  • United Consultancy Solutions
  • Dr Gemma Casey
  • Spectrum North West
  • National Autistic Society, The Lorna Wing Centres

Ireland

• Dungannon:
  • Joanne Douglas – The Spectrum Centre – 14 Northland Rows
• County Tyrone:
  • The Spectrum Centre – BT71 6AP

The United States of America

Arizona:

• Tucson:
  • Dr. Patricia Beldotti, Tucson Neuropsychology
  • Dr. Barbara Jane Nichols

California:

• Los Angeles:
  • Dr. Alexander Gantman
  • Joel Schwartz, PsyD, Neuro-divergent affirming and specialized in adult diagnostics
    Email: dr.jschwartz1@gmail.com
    (424) 265-8185
  • La Concierge Psychologist, Adult Autism Assessment, Email: drlee@laconciergepsychologist.com (424) 272-6650

• Orange County:
  • Dr. Michael Linden, Linden Attention Learning Center
• Sacramento:
  • Dr. Debra Moore, Fall Creek Counseling Associates
• San Francisco:
  • Mario Sandoval PhD
• Santa Monica:
  • Dr. Rachel West
• Temecula:
  • Dr. Vincent Shanks

Search these SoCal listings from Autism Learning Partners

Colorado:

• Boulder:
  • Dr. Kristin Powell

Search these Colorado listings from Autism Learning Partners

Connecticut:

• New Haven:
  • Dr. Richard Rubin (psychiatrist who specializes in autism and cooccurring mental illness)
• Norwalk:
  • Dr. Marcia Eckerd (clinical psychologist specializing in neurodiversity and Asperger’s; excellent grasp on female presentation)
    91 East Ave 3rd floor, Norwalk, CT, 06851
    (203) 299-1331
• Rocky Hill:
  • Connecticut & Gulf Coast ADHD Associates

Florida:

• Davie:
  • Dr. Michael Fish, 10200 W. State Rd. 84, Ste 105, Davie, Fl. 33324, 954-370-7692
• Fort Lauderdale:
  • Dr. Luis Carcache, FIU Embrace Program
• Sarasota:
  • Dr. Robert Stephenson Comprehensive MedPsych Systems, 1250 South Tamiami Trail, Suite 201 941-363-0878
• Pensacola:
  • Karen Adams, LCSW, 6706 N. 9th Ave Suite B5; 850-466-3200.
  • Bret Turner, Psy.D. (EMAIL) – Cordova Counseling Center

Illinois:

• Bloomington:
  • Dr. Jennifer Imig Huffman, The ABLE Center
• Peoria:
  • Theresa Regan, Adult Diagnostic Autism Clinic at OSF ST Francis Medical Center They are huge with many branches for both adults and children. For adults they have behavioral health, physiologists, and neurologists. Said to be the best around.

Search these Chicago listings from Autism Learning Partners

Indiana:

• Columbus:
  • Bradley Estes, PsyD, Estes Neuropsychology
    & Kristen Hurley, PsyD
    2675 Fox Pointe Dr, Suite A
    ​Columbus IN 47203-3391
    (812) 376-0900

Kansas:

• Lawrence:
  • KU Child and Family Services Clinic, University of Kansas
    2021 Dole Human Development Center
    1000 Sunnyside Avenue
    Lawrence, KS 66045-7555
    (785) 864-4416
• Leawood:
  • Dr. Douglas L. Geenens, Diplomat, American Board of Psychiatry and Neurology 4901 W. 136th Street 913-956-3999 (EMAIL)

Kentucky:

• Bowling Green:
  • Chestnut park professionals for diagnosis. Wilson counseling for psychotherapy
• Louisville:
  • Anna Bergman, Raskinand Associates Psychology Resource Group

Louisiana:

• New Orleans:
  • Laura Niditch, PhD, Atlas Psychiatry

Maryland:

• Chevy Chase:
  • Dr David Black, Center for Assessment and Treatment
    8401 Connecticut Ave
    Chevy Chase, MD
    (240) 424-0184

• Boston:
  • Common Wealth Psychology, Autism Spectrum Disorder (ASD) Evaluations
  • Beth Israel Hospital – Neuropsychology Assessment Center
• Watertown:
  • Eva Mendes, M.A
• Westborough:
  • New England Psychological Assessment Center

Michigan:

• Ann Arbor:
  • Bronwyn Murray, PsyD
• Grand Rapids:
  • BRAINS Potential
• Troy:
  • Dr. Leslie Green, Psychologist, 755 W Big Beaver Rd (suite 414) Troy, MI 48084-4900

Minnesota:

• Duluth:
  • Dr. Julianne Davis, Essentia Health
    

    502 E 2nd St
    Duluth, MN 55805

    (218) 786-1186
• Rochester:
  • Allison Adams, PsyD, Bluestem Center

Missouri:

• St. Louis:
  • Dr. Michael Knobelach, St. Louis Behavioral Medicine Institute
    1129 Macklind Ave.
    St. Louis, MO 63110
    314-289-9411

Montana:

• Missoula:
  • Melissa Neff, Ph.D.

Nebraska:

• Lincoln:
  • Dr. Diane Marti, PhD, LP, Williamsburg Behavioral Health
    3801 Union Drive, Suite 206
    Lincoln, NE 68516
    (402) 620-6867
    

New Jersey:

• Morristown:
  • Richard A. Dickes
    
    310 Madison Ave, Ste 220
    Morristown, NJ 07960
    
    (973) 267-1238

New York:

• Albany:
  • Center for Disability Services
    314 South Manning Blvd.
    Albany, NY 12208
    518-437-5700
• Melville:
  • Long Island Aspire Center for Learning and Development
    Dr. Shana Nichols
• New York City:
  • Spectrum Services New York
    Katherine Cody, PsyD
    Lynda Geller, PhD
    (917) 512-7751
  • Not diagnosis, but support: Felicity House
• Utica:
  • Kelberman Center

Try searching these New York Listings from Autism Learning Partners

North Carolina:

• TEACCH–multiple locations in NC. From the University of North Carolina

• Charlotte & Nashville:
  • Southeast Psych

Ohio:

• Columbus:
  • Dr. Carol Bline, Developmental Associates
    1555 Bethel Rd.
    Columbus, OH 43220
    (614) 578-1165
    
• Westerville:
  • Sandra Webster, Westerville, Ohio 43081, 444-271-1913

Oregon:

• Portland:
  • Karen McKibbin (email), Portland Autism Center
    10300 SW Greenburg Rd, Suite 240
    Portland, OR 97223
    503-593-3331
  • Dr. Leslie Carter, Tigard Therapy Center
    

    9600 SW Oak Street, Suite 325
    Tigard, OR 97223
    (503) 206-5578

Pennsylvania:

• Philadelphia:
  • Dr. Edward Brodkin, University of Pennsylvania – The Adult Austism Project
  • Robert A. Naseef, Ph.D., Alternative Choices
• Pittsburg:
  • Glenn Getz, Ph.D., Allegheny General Hospital, in Pittsburgh, PA Allegheny General Hospital, Department of Behavioral Health (cautious recommendation)
• Lancaster:
  • Dr. Jonathan M. Gransee
• Doylestown:
  • Dr. Brittany Lyman
    Autism Spectrum Diagnostics and Consulting
    259 Veterans Lane, Suite 102
    Doylestown, PA 18901
    215-230-3616

Rhode Island:

• Warwick:
  • Lori McKinsey, PsyD
    44 Love Lane
    Warwick, Rhode Island 02886
    (401) 229-2610

• Memphis:
  • Dr. Neelam Jain, River City Neurology
    1661 International Place Dr, Suite 400
    Memphis, TN 38120
    (901) 245-5915

Texas:

• Austin:
  • Dr. Kent Foster, Austin Neurological Clinic
  • Walter Scott Newman, PhD; licensed psychologist who understands the adult presentation of symptoms in males and females
    

    8500 Shoal Creek BLVD. Building 4, suite 201A
    Austin, TX 78757
    (281) 797-5672

  • Dr. Andrea Bieberich, clinical psychologist specialized in autism
    4101 Parkstone Heights Drive 
    Suite 260
    Austin, TX 78746
    (512) 627-6259 
• Houston:
  • Dr. Cassandra Smisson Hayes, Smisson Psychology Services
  • Dr. Katherine Loveland, UT Physicians Psychiatry Outpatient Clinic-BBSB

Utah:

• Salt Lake City:
  • Dr. Megan Farley, psychologist who specializes in Autism University of Utah Specialty Clinic 650 Komas Dr. #208 (801) 585-1212

  • UNI Downtown Behavioral Health Clinic
    525 East 100 South, 5th Floor
    Salt Lake City, UT 84102
    801-585-1212

Virginia:

• Fairfax:
  • George Mason University Center for Psychological Services
    10340 Democracy Lane, Suite 202
    Fairfax, VA 22030
    (703) 993-1370
• Leesburg:
  • Dr. Stacey Hoffmann (EMAIL)
• Glenn Allen:
  • Dr. Norm Geller, Autism and Educational Diagnostics Helps
    

    4860 Cox Rd., Suite 200
    Glen Allen, VA 23060
    (804) 396-3211

• Richmond:
  • Sandi Wiggins
    7110 Forest Ave, Suite 206
    Richmond, VA 23226
    (804) 366-1345
• Virginia Beach:
  • Dr. Rick Ellis, Spectrum Psychological and Neurotherapy Services
    

    4542 Bonney Rd., Suite B
    Virginia Beach, VA 23462
    (757) 640-1882

Washington:

• Bellevue:
  • Stacie Keirsey, PsyD, The Center for Relational and Family Therapy
• Tacoma & Seattle:
  • University of Washington’s Autism Center
• Lynwood:
  • PUGET SOUND PSYCHOLOGY & CONSULTING
• Spokane:
  • Dr. Liz Pechous, ICARD

Wisconsin:

• Madison:
  • Waisman Autism and Developmental Disabilities Clinic
• Wausau:
  • Behavioral Health Clinic

Wyoming:

• Laramie:
  • Snowy Range Consulting