The A4 study: Now is the time to join the fight to prevent Alzheimer's disease.
Please note that due to a high level of interest in the A4 study, there may be a delay in sites responding to inquiries. Every effort is being made to follow up with potential participants as quickly as possible. To help speed the process, please take the prescreener, and share your eligibility status with contact study sites by email versus phone, if possible. We thank you for your interest in the A4 study.

Map of the A4 Study Site Locations

The A4 Study has site locations set up in the U.S., Canada, and Australia. Enter your zip code, use the interactive map, or search the alphabetical listings below to find a location near you. To reset the map, please click here.

*Sites that offer testing in Spanish

ZIP / Address:
* Butler Hospital Memory and Aging Program USA 345 Blackstone Blvd
Providence, RI 02906
Diane Monast
(401) 455-6403
Email Contact

For inquiries in Spanish:
Tara Tang
(401) 455-6402
* Center for Alzheimer Research and Treatment
Brigham and Women’s Hospital
USA 60 Fenwood Road
Boston, MA 02115
Nancy Coppelman
(617) 278-0383
Email Contact

For inquiries in Spanish:
Martha Muniz
(857) 307-5250
* Columbia University USA 630 West 168th St
P&S Unit 16
New York, NY 10032-3795
Ruth Tejeda
(212) 305-7661
Email Contact

Contact is able to accept either Spanish or English inquiries.
* University of Southern California Alzheimer’s Disease Research Center USA 1520 San Pablo St
Suite 3307
Los Angeles, CA 90033
Nadine Diaz
(323) 442-7600
Email Contact

Contact is able to accept either Spanish or English inquiries.
* Wien Center for Clinical Research USA Mount Sinai Medical Center
4302 Alton Road, #650
Miami Beach, FL 33140
Maria Greig
(305) 674-2037
Email Contact

Contact is able to accept either Spanish or English inquiries.
Banner Alzheimer's Institute USA 901 East Willetta St
Phoenix, AZ 85006
Roma Patel
(602) 839-6793
Email Contact
Banner Sun Health Research Institute USA 10515 W. Santa Fe Dr
Sun City, AZ 85351
Zoran Obradov
(623) 832-6526
Email Contact
Baylor College of Medicine USA 7200 Cambridge Blvd
Houston, TX 77030
Sydney O'Connor
(713) 798-8329
Email Contact
Boston University ADC USA 72 East Concord St
Boston, MA 02118
Nicole Gullotti
(617) 414-1077
Email Contact
Brain Matters Research USA 800 NW 17th Ave
Delray Beach, FL 33445
Jetliza Lesmes
(561) 381-9060
Email Contact
Cleveland Clinic Lou Ruvo Center for Brain Health USA 888 W Bonneville Ln
Las Vegas, NV 89106
Kat Hartley-Mack
(855) 568-7886
Email Contact
Compass Research North USA 2018 Tally Rd
Suite 101
Leesburg, FL, 34748
Joleen Smith
(352) 261-0901
Email Contact
Compass Research, Orlando USA 100 W GoreSt
Orlando, FL 32806
Jonathan Simmonds
(407) 210-1317
Email Contact
Dent Neurologic Institute USA 3980 Sheridan Dr
Suite 500
Amherst, NY 14226
Caroline Kumm
(716) 558-3492
Email Contact
Drexel University College of Medicine USA 245 N 15th St
Philadelphia, PA 19102
Katie Rife
(215) 762-7436
Email Contact
Emory University USA 1821 Clifton Rd, NE
Atlanta, GA 30329
Deborah Westover
(404) 712-6807
Email Contact
Florey Institute of Neuroscience and Mental Health Australia 155 Oak Street
Parkville, Victoria 3052
Maree Mastwyk
+1 (800) 443 253
Georgetown University Memory Disorders Program USA Building D
4000 Reservoir Rd, NW
Suite 177
Washington, DC 20057
Kelly Behan
(202) 687-0413
Email Contact
Great Lakes Clinical Trials USA 5149 N Ashland Ave
Chicago, IL 60640
Megon Holldorf
(773) 275-3500
Email Contact
Houston Methodist/Nantz National Alzheimer’s Center USA 6560 Fannin St
Suite 802
Houston, TX 77030
Jennifer Garrett
(713) 441-9484
Email Contact
Howard University USA Tower Building
2041 Georgia Ave, NW
Suite 2309
Washington, DC 20060
Oludolapo Ogunlana
(202) 865-1973
Email Contact
Icahn School of Medicine at Mount Sinai USA 1425 Madison Ave
New York, NY 10029
Kelly Pun
(212) 241-8329
Email Contact
Indiana University USA 355 W 16th St
Suite 4700
Indianapolis, IN 46202
Christina Brown
(317) 963-7426
Email Contact
Johns Hopkins University USA 5300 Alpha Commons Dr
4th Floor
Baltimore, MD 21224
Caitlin Romano
(410) 550-9047
Email Contact
KU Alzheimer’s Disease Center USA 4350 Shawnee Mission Pkwy
Suite 1200
Fairway, KS 66205
Aiden Bondurant
(913) 588–0555
Email Contact
Mary S. Easton Center for Alzheimer’s Disease Research at UCLA USA 10911 Weyburn Ave
Suite 200
Los Angeles, CA 90095
Celine Ossinalde
(310) 794-6191
Email Contact
Mayo Clinic Florida USA 4500 San Pablo Rd
Jacksonville, FL 32224
Dana Haley
(904) 953-9680
Email Contact
Mayo Clinic, Rochester USA 200 1st St, SW
Rochester, MN 55905
Kari Baxter
(507) 284-1324
Email Contact
New York University Langone Medical Center USA 145 E 32 St
2nd Floor
New York, NY 10016
Ash Gaikwad
(212) 263-5845
Email Contact
Northwestern University USA 320 E Superior St
Searle 11-465
Chicago, IL 60611
Kristine Lipowski
(312) 503-6227
Email Contact
Oregon Health & Science University USA 3181 Southwest Sam Jackson Park
Portland, OR 97239
Chad Sorenson
(503) 494-7108
Email Contact
Parkwood Institute Canada 550 Wellington Rd
London, ON N6C OA7
Sarah Best
(519) 685-4292 Ext. 42567
Email Contact
Pennington Biomedical Research Center USA 6400 Perkins Rd
Baton Rouge, LA 70808
Robert Brouillette
(225) 763-0277
Email Contact
Premiere Research Institute USA 4631 North Congress Ave
Suite 200
West Palm Beach, FL 33407
Dr. Alfonso Moreno
(561) 845-0500 Ext. 131
Email Contact
Rhode Island Hospital USA 593 Eddy Street
APC Bldg, 5th Fl.
Providence, RI 02903
Kerstin Calia
(401) 444-9861
Email Contact

For inquiries in Spanish:
Alisa Omert
(401) 444-1743
Roper St. Francis Healthcare – CBRI USA 109 Bee Street
Charleston, SC 29401
Allison Lapp
(843) 724-2214
Email Contact
Rush Alzheimer's Disease Center | Rush University Medical Center USA 600 South Paulina St
Suite 130
Chicago, IL 60612
Judy Phillips
(312) 942-0050
Email Contact
Stanford University School of Medicine USA 3801 Miranda St
Palo Alto, CA 94304
Tamara Beale
(650) 852-3234
Email Contact
Sunnybrook Health Sciences Centre Canada 2075 Bayview Ave
Room A417
Toronto, ON M4N 3M5
Sarah Stewart
(416) 480-6100 ext. 6108
Email Contact
Sutter Institute for Medical Research USA 2800 L Street Suite 500 Sacramento CA 95816 Janet Vulk
(916) 887-4656
Email Contact
Syrentis Clinical Research USA 1401 N Tustin Ave
Suite 130
Santa Ana, CA 92705
Lorrie Bisesi
(714) 542-3008 ext. 310
Email Contact
Toronto Memory Program Canada 1 Valleybrook Dr
Suite 400
Toronto, ON M3B 2S7
Sophia Pagtakhan
(416) 386-9761 ext. 347
Email Contact
Tulsa Clinical Research USA 1705 E 19th St
Suite 406/408
Tulsa, OK 74104
Christy Lisenbee
(918) 743-2349
Email Contact
UBC Hospital Canada UBC Division of Neurology
S334-2211 Wesbrook Mall
Vancouver, BC V6T 2B5
Benita Mudge
(604) 822-7990
Email Contact
UC Davis Alzheimer’s Disease Center
*Note: This study site is located in the Bay Area.
USA 100 N Wiget Ln
Suite 150
Walnut Creek, CA 94598
Hongzheng Zhang
(925) 357-6914
Email Contact
UCI MIND USA 1100 Gottschalk Medical Plaza
Irvine, CA 92697-4285
Huong Nguyen
(949) 824-0008
Email Contact
UCSD Shiley Marcos Alzheimer’s Disease Research Center USA 9444 Medical Center Drive
Suite 1-100
La Jolla, CA 92037
Helen Vanderswag
(858) 249-0556
Email Contact
University Hospitals of Cleveland USA 2619 Park East Dr
Suite 190
Beachwood, OH, 44122
Maria Gross
(216) 464-6454
Email Contact
University of Alabama at Birmingham USA 1720 7th Ave
South Sparks Center 640E
Birmingham, AL 35294
Jackie Vaughn
(205) 934-6126
Email Contact
University of California, Irvine - Neuropsychiatric Center USA 101 The City Dr South
Orange, CA 92868-3298
Andrea Weideman
(714) 456-5697
Email Contact
University of California, San Francisco USA 675 Nelson Rising Ln
San Francisco, CA 94158
Noelle Ohanesian
(415) 476-0669
Email Contact
University of Iowa USA 200 Hawkins Dr
Iowa City, IA 52242
Karen Ekstam Smith
(319) 353-5158
Email Contact
University of Kentucky USA 1030 South Broadway
Suite 5
Lexington, KY 40504
Shani Bardach
(859) 323-1331
Email Contact
University of Michigan, Ann Arbor USA Department of Neurology
Michigan House
2301 Commonwealth Blvd
Ann Arbor, MI 48105-2945
Jaimie Ziolkowski
(734) 647-7760
Email Contact
University of Nebraska Medical Center USA 986150 Nebraska Medical Center
Omaha, NE 68198-6150
Mary Horrum
(402) 552-6150
Email Contact
University of Pennsylvania, Penn Memory Center USA 3615 Chestnut St
Suite 359
Philadelphia, PA 19104
Jessica Nunez
(215) 662-4379
Email Contact
University of Pittsburgh Alzheimer’s Disease Research Center USA 4-West UPMC Montefiore
200 Lothrop St
Pittsburgh, PA 15213
Katy Zorich
(412) 692-2730
Email Contact
University of Rochester Medical Center USA AD-CARE Monroe Community Hospital
435 E Henrietta Rd
Rochester, NY 14620
Susan Salem-Spencer
(585) 760-6562
Email Contact
University of Texas, Southwestern Medical Center USA 5323 Harry Hines Blvd
Dallas, TX 75390-9129
Erica Adkins
(214) 648-9343
Email Contact
University of Washington USA 1660 S Columbian Way
Seattle, WA 98108
Anita Ranta
(206) 764-2339
Email Contact
University of Wisconsin USA 600 Highland Ln
Madison, WI 53792
Ben Farral
(608) 256-1901 Ext. 11640
Email Contact
USF Health Byrd Alzheimer’s Institute USA 4001 E Fletcher Dr
Tampa, FL 33613
Kelly Rodrigo
(813) 974-4904
Email Contact
Wake Forest University Health Sciences USA 1 Medical Center Boulevard
Winston Salem, NC 27157
Patricia Wittmer
(336) 713-8243
Email Contact
Washington University, St. Louis USA 4488 Forest Park
Suite 101
St. Louis, MO 63108
* No Longer Recruiting
Weill Cornell Medical College USA 428 East 72nd St
Suite 500
New York, NY 10021
David Kwak
(212) 746-6581
Email Contact
Yale University School of Medicine USA 1 Church St
Suite 600
New Haven, CT 06510
Julia McDonald
(203) 764-8100
Email Contact

*Refresh the page to reset listings.