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IACFS/ME 2023 Clinical and Scientific Conference 

July  27 - 29, 2023 

9 AM - 5 PM EDT (New York City time)

Stony Brook University, Stony Brook, New York, USA

(Click to check date/ time in your local area)

Science Variety

                                                                                                                                                                                                                                                                    Image by Freepik

Click here for details about Registration Fees!

   Click to review our updated Health & Safety Policy. 


(Updated June 5, 7 PM EDT: the conference schedule is now posted and there are more details about accommodations.)


This will be IACFS/ME's 16th Medical/ Scientific Conference. Our  exciting, informative program includes:

  • Workshops covering research-, clinic-, and advocacy-oriented topics
  • Oral presentations of unpublished, peer-reviewed research
  • Poster presentations of unpublished, peer-reviewed research
  • Keynote Speaker: Wearables for evidence-based medicine: where are we and what is happening next? - Benjamin Vandendriessche, PhD - Byteflies, Case Western Reserve University (USA)
  • Plenary Speaker: David Putrino, PhD;  Icahn School of Medicine, Mt. Sinai (New York, USA)
  • Special Symposia: Telehealth and telemedicine; Wearable technology, remote studies, and virtual trials

The conference will focus on the biomedical, behavioral, and public health aspects of ME/CFS and associated comorbidities.  A portion of the meeting will also be devoted to COVID-19 and its relevance to ME/CFS research and clinical care.

A Quiet Room near Conference spaces will be available during Conference hours for rest and relaxation. Lighting will be kept dim and occupants will be asked to limit conversations and to minimize noise. Some chairs and tables are available. Attendees are welcomed to use the room as needed and bring items (blanket, yoga mat, noise-cancelling earphones, etc.) that might contribute to their comfort. Please note the room is not secured: do not leave items there.


Click on the "+" symbol for each date to see the schedule. Click the "-" symbol to hide the schedule. To see the schedule as one page, visit this link. 

Registration Fees

Register before July 2, 2023 at 11:59 PM for the best rates! Online registration ends July 21, 2023 at 11:59 PM. Discounts are also available for early career professionals, trainees, students and IACFS/ME members. For full details, visit this page.

Optional items that may be purchased are university dormitory accommodations (see below, $80/ room/ night) and tickets for the July 28 Evening Banquet ($75/ person). Attendees and their guests are welcomed to attend and partake in a buffet banquet while socializing with other attendees.

Target Audience

Attendees at IACFS/ME conferences are primarily biomedical and behavioral professionals, including clinicians, researchers, and educators. We especially encourage participation by professionals from outside the United States.   People affected by ME/CFS and their supporters are also welcomed.  Anyone interested in ME/CFS, fibromyalgia, related conditions (e.g. mass cell activation syndrome, dysautonomia), COVID-19, and sequelae of COVID-19 (e.g. long COVID) is invited to participate.

IACFS/ME Members received discounted registration fees: considering joining us today for this and other benefits! For a taste of our meetings, see our 2022 Virtual Conference Summaries and Past Conference Programs.

Continuing Medical Education

Continuing Medical Education credits will be available for eligible program components. The School of Medicine, State University of New York at Stony Brook is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education to physicians and will designate the number of AMA PRA Category 1 credit (s) TM awarded for physician participation.

Please note that CME credit is available only to people registering as Professionals and for live, in-person attendance of the meeting.

COVID-19 Policy

IACFS/ME will follow vaccination, testing, and other (e.g., indoor masking, distancing) rules as required by federal, state, local, and university campus agencies.  See here for our updated Health & Safety Policy. During the registration process, potential attendees will be asked to attest to either having received a bivalent COVID-19 vaccine OR agreeing to wear a mask in and around Conference spaces.

Please continue practicing behaviors that lower your risk of infection. If conditions prohibit an in-person conference, we will pivot to a virtual format. We thank you in advance for your patience, understanding, and cooperation. Updated information will sent over the upcoming months.

Travel and Tourism 

Stony Brook University is located in Stony Brook, New York, on Long Island, 65 miles east of New York City. Multiple airports, including John F. Kennedy International Airport, La Guardia, and  Islip/ McArthur, serve the area and the town is also accessible via car, rail, and ferry. The town and surrounding locales are popular and scenic summer destinations on Long Island Sound and the Atlantic Ocean. IACFS/ME has reserved a block of rooms at 2 local hotels: discounted prices will be available for attendees. Additionally, some on-campus university dorm rooms may be reserved at an affordable price well below hotel rates. We will send more information in the future. Here is some basic information about the Universitythe local area, Long Island, and New York City.



IACFS/ME has reserved a limited number of rooms/ nights at the Stony Brook Hilton Garden Inn and the Holiday Inn at a discounted price. We advise reserving your room early as area hotel rooms are in high demand during the summer. During booking, you can adjust the nights you plan to stay and the number of guests. If you change your mind later, both hotels have flexible, no-penalty cancellation policies.  Review hotel details and policies when you book.

If you book after the cut-off dates listed, the discounted rate will not apply. 

1. Hilton Garden Inn - on campus + free area shuttle - $249 USD/ night - book by June 7 at 11:59 PM New York time.

Discounts apply the nights of July 27-29. If you need a room the night of July 26 (night before conference) or other nights, regular rates will apply.

Reservations can be made by calling the hotel at 631-941-2980 and referencing the IACFS/ME International Research and Clinical Conference or the group code IACFS. Reservations can also be made via the following link: Available Rooms - Hilton Garden Inn Stony Brook.

2. Holiday Inn Express - 1 mile from campus + free area shuttle - $169-$249 USD/ night - book by July 3

Discounts apply the nights of July 26 - 29. 

Book here using this link  OR call 1-800-HOLIDAY or make a reservation online and put in the block code FRE.


Stony Brook University Housing

One hundred Stony Brook University dorm rooms will be available. Dorm rooms are available starting the night of July 25, 2023 to the night of July 29, 2023. They are $80 USD/ room/ night, and a 7-minute walk to the conference venue. During the registration process, you can book a dorm room for any number of consecutive nights.

The deadline to book a dorm room is July 4, 2023. If you book a room and change your mind, please notify us by July 7, 2023. If you cancel after this date, we may have to charge you the full amount as IACFS/ME will be charged for cancelled reservations.

To see the rooms, click here and scroll down to "Lauterbur and Yang Halls." Each room is meant for 1-2 persons (2 twin beds) and 3-4 rooms will share a bathroom/ living room. However, university housing does not allow non-conference attendees (e.g. family members) to stay and cannot house people under 18 years of age.  Mixing of genders within rooms or suites is not permitted (i.e., if you will be choose to share your a room, your roommate must be the same gender).

Currently, dorms stays do not require evidence of vaccination, testing pre-stay, or masks although we encourage our conference attendees to wear masks as they need. If a person tests positive for COVID-19, university policy requires that that the person isolate within their room for the majority of the time.

The main check-in time for the rooms will be on July 26 from 3 to 5 PM and then from 8 to 9 PM. If you need a check-in date/ time outside of these dates/ hours, please notify us at so we can make arrangements. Also, notify us if you need a handicap-accessible room.


Other Lodging

See Hotels.comAirbnbVRBO, house-swapping, and similar websites. These sites give you an idea of choices and prices. For the best hotel prices, try contacting hotels directly. Hotels with local shuttle services are helpful if you will not be driving.

Hotel rooms, vacation homes, and dorm rooms can be shared and the costs split. If you choose to do this, it is up to you to arrange for a roommate, assure the place you are staying allows a roommate, and split the costs with them. 

Virtual Attendance

IACFS/ME plans to record all of the main Conference proceedings and portions of the Workshops. In-person interactive portions of Workshops may not be recorded due to technological challenges. Video recordings will be made available online about 2-3 weeks AFTER the Conference. In-person attendees will receive online access to the recordings for 30 days as part of their registration fee. People who cannot attend in-person can purchase video recording access. Please note that CME credits are available only for live, in-person attendance.

If you want to help sponsor video recording/ streaming, please e-mail us at



Every conference, generous individuals, non-profit groups, agencies, foundations, and businesses have helped us create a successful meeting. If you or your organization are interested in publicizing your support of ME/CFS clinical care and research to our community, please see our 2023 IACFS/ME Conference Supporter Brochure. Or complete our Contact Us form or e-mail us at