Doubletree Hotel | SIAM

Hotel Information

DoubleTree Hotel Portland (Headquarter Hotel)

1000 NE Multnomah Street
Portland, Oregon 97232

The DoubleTree Hotel is located within walking distance to the Oregon Convention Center (approximately a 10-minute walk, 4 short blocks away), the MAX lightrail is also available, which is 2 stops and about a 5-minute ride.


Toll Free Reservations (USA and Canada): +1-800-996-0510

Hotel Reservation Deadline

June 11, 2018

More About DoubleTree Hotel Portland


The excellent central location of the DoubleTree by Hilton Hotel Portland sets guests right at the heart of all that Portland has to offer. Conveniently located in the Lloyd District, the hotel provides easy access to Oregon’s largest shopping mall, the Lloyd Center Mall. Enjoy tax-free shopping, have a go on the Lloyd Center ice rink or indulge in a delicious meal with numerous dining options. Visit the Oregon Museum of Science & Industry for a fun day out for the whole family. Discover an array of hands-on exhibits and watch a film on the impressive IMAX Dome theatre. Explore the local area and enjoy the many restaurants, coffee shops, spas and boutique shops, all within walking distance from the hotel.

Portland MAX Light Rail System also stops directly outside the hotel, making it easier than ever to explore the area. Direct service is also available to Portland International Airport for a small fee.

Did you know?

Your support in staying at the DoubleTree Hotel Portland helps keep the conference costs down, which directly affects your registration fees. SIAM guarantees the hotel that we will fill a certain number of “room nights” (rooms per night) during the conference. SIAM incurs penalties if too many attendees opt to stay in other hotels in the area or neglect to indicate to the hotel that they are with the SIAM conference.


SIAM is holding a block of rooms at the DoubleTree Hotel Portland. These rooms are being held on a first-come, first-served basis at the following discounted rates. Please be aware the room block fills quickly, so we suggest you make your hotel and travel plans early.

The group rate is guaranteed until the cutoff date or until the room block is full. If rooms are available after the cutoff date, they will be offered at the best available rate.

Reservation Deadline – June 11, 2018 (or until the room block is filled)

Single/Double* $199.00 per night plus 15.3% tax
Government Rate $182.00 per night plus 15.3% tax
Student Rate $149.25 per night plus 15.3% tax

Student ID must be presented upon check-in. SIAM is able to negotiate a limited number of Government Rate and Student Rate rooms, please book early as these rooms sell out quickly!

Room rates include complimentary Internet access. 
All rooms based on availability.
All rates are subject to state and local occupancy taxes.
* Additional fees of $15 per person apply to triple and quad occupancy.

In the event that you find a lower room rate, please make the reservation at the lower rate and notify SIAM immediately. By doing this you will receive the lower rate and be counted towards the SIAM room block. However, please be aware by booking outside the SIAM room block at a lower rate, you may not receive the same benefits as rooms reserved in the SIAM room block (i.e complimentary Internet access).

Reservations are not confirmed until acknowledged in writing by the hotel or verified by phone. Be sure to get a confirmation number from the hotel and be prepared to provide that number to the front desk clerk upon check-in at the hotel. If hotel reservations are requested by e-mail and written confirmation is not received within two weeks, please contact the hotel immediately to verify the reservation request was received and processedBe sure to get a confirmation number.

When making reservations, be sure to identify yourself as an attendee of the SIAM Meeting. In order to receive the SIAM group rate, please make your reservations using the above group reservation link. You may also make your reservation by phone by calling +1-800-996-0510 (USA and Canada) or +1-503-281-6111.

Do not make your reservation online using the hotel’s general web site, as this will not allow you to obtain the SIAM group rate. Be sure to use the group link if making reservations online. Remember to get your confirmation number!


If you need to change or cancel your reservation, you must contact the hotel 48 hours prior to the scheduled arrival date to avoid a cancellation fee.  You can contact the hotel at +1-800-996-0510 (USA and Canada) or +1-503-281-6111. Remember to get a cancellation number!

Check-In and Check-Out

Check-in time is 4:00 PM and check-out time is 12:00 PM.


The DoubleTree Hotel Portland requires a credit card to confirm and guarantee your reservation. The hotel will send out e-mail confirmations upon request.

Health Facilities

Hotel guests will have complimentary use of the fitness center and outdoor pool at the DoubleTree Hotel Portland.


Posted rates apply.

Telephone Messages

The hotel operator can be reached at +1-503-281-6111. Telephone messages can be left in guest rooms for guests staying in the hotel.