WHO WE ARE

Acting as one, we are a dynamic and unified group of health care providers

A cohesive and dedicated team is here to help you and your family manage chronic bone diseases.


  • We understand that finding out that you, or a loved one has a rare bone disease can be overwhelming.

  • This clinic is unique in that it treats entire families with lifelong conditions.

Meet us

    Pediatric Patient Team


  • Jill Simmons
    Jill Simmons, MD

    Physician, Prof. of Pediatrics, Division of Pediatric Endocrinology and Diabetes

  • Jeff Martus
    Jeff Martus MD

    Physician, Assoc. Prof. of Orthopaedic Surgery and Rehabilitation

  • Andrew Franklin
    Andrew Franklin, MD

    Physician, Asst. Prof. of Clinical Anesthesiology

  • Sarah Wright
    Sarah Wright, BSN

    Research Nurse

  • Jessica Bennett
    Jessica Bennett, MS, RD, CSSD, LDN

    Clinical Dietician

  • Laura Duncan
    Laura Duncan, MS, CGC

    Genetics Counselor

  • Sarah Moran
    Sarah Moran, PT, DPT

    Physical Therapist

  • Christy Mullen
    Christy Mullen, MSN, RN, CPN

    Case Manager

Adult Patient Team


  • Kathryn Dahir
    Kathryn McCrystal Dahir, MD

    Physician, Prof. of Medicine

  • Jennifer Halpern
    Jennifer Halpern, MD

    Physician, Asst. Professor of Orthopaedics & Rehabilitation

  • Christopher Sobey
    Christopher Sobey, MD

    Physician, Asst. Prof. of Clinical Anesthesiology, Div. of Pain Medicine

  • Ginger Holt
    Ginger Holt, MD

    Physician, Prof. of Orthopaedic Surgery and Rehabilitation

  • Chrissy Durrough
    Chrissy Durrough PT, DPT, NCS

    Physical Therapist

  • Jake Block
    Jake Block, MD

    Physician, Assoc. Prof. of Radiology

  • Eva Giverc
    Eva Giverc, BS, MBA

    Clinical Research Coordinator I

  • Margo Black
    Margo Black, BSN, MSN

    Manager, Research Projects

  • Alysse Sephel
    Alysse Sephel, BSN

    Research Nurse Specialist II

  • Megan Jacobs
    Megan Jacobs, RN

    Clinical Research Coordinator I

  • Brannan Cole
    Brannan Cole, MSN