Explore the profiles below to learn more about the physicians, physician assistants and nurse practitioners who make up the UArizona Department of Orthopedic Surgery care team.
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![Dr. Abduljabbar Alhammoud, UArizona Orthopedics](/sites/default/files/styles/az_card_image/public/2023-08/Abduljabbar-Alhammoud.jpeg?h=f5e8e81a&itok=f8oYCwEn)
Abduljabbar Alhammoud, MD
Assistant Professor
Orthopedics – Spine
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![Brad Askam, MD](/sites/default/files/styles/az_card_image/public/2022-04/Brad-Askam.jpg?h=34b57515&itok=WbuEUkq4)
Brad Askam, MD
Assistant Professor
Orthopedics – Trauma
Medical Student Co-Director
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![Dr. Nicholas Bonazza, UArizona Orthopedics](/sites/default/files/styles/az_card_image/public/2023-08/Nicholas-Bonazza.jpeg?h=4c5b451a&itok=xqBR1OO7)
Nicholas Bonazza, MD, MHA
Assistant Professor
Orthopedics – Sports Medicine
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![Christina Boulton, MD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-Christina_Boulton.jpg?h=7b4ed32c&itok=FAMtnWRC)
Christina L. Boulton, MD
Associate Professor
Orthopedics – Trauma
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![Gregory L. DeSilva, MD](/sites/default/files/styles/az_card_image/public/2022-04/Gregory-L-DeSilva.jpg?h=bf7d9ddf&itok=NV0qapab)
Gregory L. DeSilva, MD
Associate Professor
Orthopedics – Hand, Wrist & Elbow
Director, Residency Program
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![Dr. John C. Elfar](/sites/default/files/styles/az_card_image/public/2022-11/Dr_John_C_Elfar.jpg?h=06b4dcea&itok=CULrQ_Ns)
John C. Elfar
Tenured Professor
Orthopedics – Shoulder, Hand, Wrist & Elbow
Department Chairman
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![Michael Feldman, MD](/sites/default/files/styles/az_card_image/public/2022-04/Michael-Feldman.jpg?h=4fd3a0aa&itok=hvY9S7o2)
Michael Feldman, MD
Professor
Orthopedics – Sports Medicine
Director, Sports Medicine
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![Abigail R Hamilton, MD](/sites/default/files/styles/az_card_image/public/2022-04/Abigail-R-Hamilton.jpg?h=282b776c&itok=5pr67c7O)
Abigail R. Hamilton, MD
Assistant Professor
Orthopedics – Sports Medicine
Director of Surgical Services, Arizona Athletics
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![Jolene Hardy, MD](/sites/default/files/styles/az_card_image/public/2024-02/Jolene-Hardy.jpg?h=b93e5526&itok=C-ZhLAy8)
Jolene Hardy, MD
Orthopedic Surgeon—Joints
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![Travis Hughes, MD](/sites/default/files/styles/az_card_image/public/2022-08/Travis-Hughes-MD.jpg?h=5cf0087a&itok=1WyEwNyz)
Travis Hughes, MD
Assistant Professor
Orthopedics – Trauma
Medical Student Co-Director
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![Jay S. Johnson, MD](/sites/default/files/styles/az_card_image/public/2022-04/Jay-S-Johnson.jpg?h=ba35c196&itok=qjhCAq6g)
Jay S. Johnson, MD
Assistant Professor
Orthopedics – Joint
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![L. Daniel Latt, MD, PhD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-L-Daniel-Latt-new.jpg?h=79901997&itok=eCCosOap)
L. Daniel Latt, MD, PhD
Associate Professor with Tenure
Orthopedics – Foot & Ankle
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![Jason Lowe, MD](/sites/default/files/styles/az_card_image/public/2022-04/Jason-Lowe.jpg?h=27ca1e39&itok=qQLvPYeI)
Jason Lowe, MD
Associate Professor
Orthopedics – Trauma
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![David Stephen Margolis, MD](/sites/default/files/styles/az_card_image/public/2022-04/David-Stephen-Margolis.jpg?h=b2ff6ce4&itok=RAIBzo-g)
David Stephen Margolis, MD
Assistant Professor
Orthopedics – Hand & Wrist
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![Michael D. Miller](/sites/default/files/styles/az_card_image/public/2024-02/Michael-D-Miller.jpg?h=3bf0c1f7&itok=-JQdjC49)
Michael D. Miller, MD
Orthopedic Surgeon—Joints
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![John T. Ruth, MD](/sites/default/files/styles/az_card_image/public/2023-05/john-t-ruth-university-arizona_0.jpg?h=a11cc411&itok=cxsndsvc)
John T. Ruth, MD
Professor
Orthopedics – Joints
Former Department Chair
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![Jordan Smith](/sites/default/files/styles/az_card_image/public/2024-02/Jordan-Smith.jpg?h=0cdb9312&itok=yGzy8cIZ)
Jordan Smith, MD
Orthopedic Surgeon—Joints
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![Dr. Kimberly Tucker, UArizona Orthopedic Surgeon](/sites/default/files/styles/az_card_image/public/2023-08/23_0138_Tucker_Kimberly_HR.jpg?h=f6f43acb&itok=Ob722MNc)
Kimberly Tucker, MD
Associate Professor
Orthopedics – Joints
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![Tolga Turker](/sites/default/files/styles/az_card_image/public/2022-04/Tolga-Turker_1.jpg?h=0d131acf&itok=8VKrW7-x)
Tolga Turker, MD
Associate Professor
Orthopedics – Hand & Wrist
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![Holly Beach, MD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-beach_holly.jpg?h=ac7b971e&itok=Mc4-dtfT)
Holly Beach, MD
Associate Professor
Family & Community Medicine – Sports Medicine
Fellowship Director, Non-Surgical Sports Medicine
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![William Denq, MD](/sites/default/files/styles/az_card_image/public/2022-11/William-Denq-MD-2022.jpg?h=b2d6913a&itok=HHB40VEP)
William Denq, MD
Assistant Professor
Emergency Medicine – Sports Medicine
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![Allison Lane, MD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-Allison-Lane-MD.jpg?h=0e394c5e&itok=wkCogU_y)
Allison Lane, MD
Assistant Professor
Emergency Medicine – Sports Medicine
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![Anna Waterbrook, MD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-Anna-Waterbrook-MD-new.jpg?h=215a9e51&itok=W8Q9ZXEn)
Anna Waterbrook, MD
Professor
Emergency Medicine – Sports Medicine
Team Physician, Arizona Athletics
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![D. Kirk Douglas, PA-C](/sites/default/files/styles/az_card_image/public/2022-04/D-Kirk-Douglas.jpg?h=86b84dc9&itok=AvhfyijK)
Dean Kirk Douglas, PA-C
Physician Assistant
Orthopedics
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![Joleen Emami, FNP-C](/sites/default/files/styles/az_card_image/public/2022-04/Joleen-Emami.jpg?h=f6ffa41a&itok=xgUXuivy)
Joleen Emami, FNP-C
Nurse Practitioner
Orthopedics
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![Patrick Graham, NP](/sites/default/files/styles/az_card_image/public/2022-04/Patrick-Graham.jpg?h=56fb1443&itok=MeuqqDdZ)
Patrick Graham, NP
Nurse Practitioner
Orthopedics
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![Philip Olona, PA-C](/sites/default/files/styles/az_card_image/public/2022-04/Philip-Olona.jpg?h=56fb1443&itok=pCN9h6NU)
Philip Olona, PA-C
Non-Operative Orthopedics
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![Matthew J. Radelet](/sites/default/files/styles/az_card_image/public/2024-02/Matthew-J-Radelet.jpg?h=4942cae1&itok=DVwfj3Uw)
Matthew J. Radelet, PA-C
Physician Assistant
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![Nathan Robinson](/sites/default/files/styles/az_card_image/public/2024-02/Nathan-Robinson.jpg?h=f8032512&itok=VnnJ02M_)
Nathan Robinson, PA-C
Physician Assistant
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![Michelle C. Thomas](/sites/default/files/styles/az_card_image/public/2024-02/Michelle-C-Thomas.jpg?h=fb16fc91&itok=b0jLxDCl)
Michelle C. Thomas, PA-C
Physician Assistant
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![Dr. John C. Elfar](/sites/default/files/styles/az_card_image/public/2022-11/Dr_John_C_Elfar.jpg?h=06b4dcea&itok=CULrQ_Ns)
John C. Elfar
Tenured Professor
Orthopedics – Shoulder, Hand, Wrist & Elbow
Department Chairman
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![Prem Kumar Govindappa, DVM, PhD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-Govindappa_Prem_Kumar.jpg?h=ac7b971e&itok=ojNZo-iM)
Prem Kumar Govindappa, PhD
Assistant Research Professor
Orthopedics – Research
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![L. Daniel Latt, MD, PhD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-L-Daniel-Latt-new.jpg?h=79901997&itok=eCCosOap)
L. Daniel Latt, MD, PhD
Associate Professor with Tenure
Orthopedics – Foot & Ankle
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![Dr. Zong-Ming Li, PhD](/sites/default/files/styles/az_card_image/public/2023-07/UA-ortho-Li_Zong-Ming.jpg?h=4d4b8d35&itok=G_cNmpoD)
Zong-Ming Li, PhD
Professor
Orthopedics – Research
Vice Chair, Research
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![David Stephen Margolis, MD](/sites/default/files/styles/az_card_image/public/2022-04/David-Stephen-Margolis.jpg?h=b2ff6ce4&itok=RAIBzo-g)
David Stephen Margolis, MD
Assistant Professor
Orthopedics – Hand & Wrist