Hotel Information

Doubletree Hotel Philadelphia
237 South Broad Street
Philadelphia, Pennsylvania, 19107-5686
Phone Number: +1-215-893-1600
Toll Free Reservations:  (USA and Canada) (800) 222-TREE
Fax: +1-215-893-1663
Online Reservations: Group code: SIA
Student Reservations: Group code: SI2

Hotel Reservation Deadline: Monday, April 26, 2010
Deadline Extended to Wednesday, May 5, 2010!


The Doubletree Hotel Philadelphia is centrally located in the heart of Philadelphia’s cultural district on the Avenue of the Arts. Across from the Academy of Music, this comfortable high-rise is within walking distance of many of Philadelphia’s attractions including the Pennsylvania Convention Center, City Hall, and the Liberty Bell. Enjoy a casual lunch or dinner in Standing O, their Bar/Bistro. Breakfast is available each morning in Academy Café, their restaurant on the second floor.

Did you know?

Your support in staying at the Doubletree Hotel Philadelphia 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. At this time, conference costs do not include meeting room rental. If SIAM fails to fill the contracted room block, SIAM is then charged the cost for the meeting rooms and a penalty for the unused rooms. Future registration fees could increase to cover these additional risks.


SIAM is holding a block of rooms at the Doubletree Hotel Philadelphia. 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 unless the block fills prior to that.  If there are rooms available after the cutoff date, they will be available at the best rate offered at that time.

Reservation Deadline April 26, 2010, Wednesday, May 5, 2010 5:00 PM EDT (or until the room block is filled)

Single/Double       $169.00 per night plus 15.2% tax
Student rate         $149.00 per night plus 15.2% tax
(Student ID must be presented upon check-in. SIAM is able to negotiate a limited number of special student rate rooms. Please book early as these rooms sell out quickly!)

All rooms based on availability.
All rates are subject to state and local occupancy taxes.

In the event that you find a lower room rate, please make the reservation at the lower rate and notify SIAM immediately ([email protected]).  By doing this you will receive the lower rate and be counted towards the SIAM room block.

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 facsimile and written confirmation is not received within two weeks of sending the facsimile, please contact the hotel immediately to verify that the reservation request was received and processed. Be sure to get a confirmation number.

When making reservations, be sure to identify yourself as an attendee of the SIAM Conference on Mathematical Aspects of Materials Science. In order to get the SIAM group rate, please make your reservations via fax at +1-215-893-1663 or mail the Hotel Reservation Form directly to the Doubletree Hotel Philadelphia. You may also make your reservation by phone by calling (800) 222-TREE (USA and Canada) or +1-215-893-1600, or using the Doubletree Hotel's web link for the 2010 SIAM Conference on Mathematical Aspects of Materials Science at (Group code: SIA), or for students at (Group code: SI2).

Remember to get your confirmation number!

Welcome Reception

When making your reservation, remember that the Welcome Reception is scheduled for Saturday, May 22, 2010.  This is an excellent networking opportunity!


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


If you need to change or cancel your reservation, you must contact the hotel 24 hours prior to your arrival date in order to avoid a cancellation fee.  You can contact the hotel at (800) 222-TREE (USA and Canada) or +1-215-893-1600.  Remember to get a cancellation number!

Check-In and Check-Out

Check-in time is 3:00 PM and check-out time is 12:00 PM.


Posted rates apply.

Health Facilities

Hotel guests will have complimentary use of the fitness center, pool, and exercise room in the Doubletree Hotel Philadelphia.

Telephone Messages

To reach an attendee or to leave a message, call +1-215-893-1600.  The hotel operator can either connect you with the SIAM registration desk or to the attendee’s room.  Messages taken at the SIAM registration desk will be posted to the message board located in the registration area.

Hotel Room Reservation Form

The hotel room reservation form is available here.

Hotel Room Sharing Form

The hotel room sharing form is available here.

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