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    Mary & Dick Allen Diabetes Center

    Meet Hoag's Diabetes Team

    Leadership

    David T. Ahn, MD

    David T. Ahn, MD

    Dr. Kris V. Iyer Endowed Chair in Diabetes Care Chief of Diabetes Services at Hoag, Endocrinologist

    Karen Engelman

    Karen Engelman

    Director, Diabetes Center

    Christine Miller

    Christine Miller

    Front Office Supervisor

    Endocrinology

    David T. Ahn, MD

    David T. Ahn, MD

    Dr. Kris V. Iyer Endowed Chair in Diabetes Care Chief of Diabetes Services at Hoag, Endocrinologist

    Jonathan K. Huang, MD

    Jonathan K. Huang, MD

    Endocrinologist

    Diana W. Zhao, MD

    Diana W. Zhao, MD

    Endocrinologist/Obesity Medicine

    Julia Murphy, P.A.-C.

    Julia Murphy, P.A.-C.

    Physician Assistant Endocrinology

    Ruth Hwang, P.A.-C.

    Ruth Hwang, P.A.-C.

    Physician Assistant Endocrinology

    Clinical Staff

    Kirsten Bohrnell, RD, CDCES

    Kirsten Bohrnell, RD, CDCES

    Registered Dietitian Certified Diabetes Care & Education Specialist

    Michelle Connell, RN, CDCES

    Michelle Connell, RN, CDCES

    Certified Diabetes Care and Education Specialist

    Meghan Gonzalez, RD, CDCES

    Meghan Gonzalez, RD, CDCES

    Certified Diabetes Care and Education Specialist Registered Dietitian

    Mai Nguyen, RD, CDCES

    Mai Nguyen, RD, CDCES

    Certified Diabetes Care and Education Specialist Registered Dietitian

    Michelle Speetzen, BSN, RN, CDCES

    Michelle Speetzen, BSN, RN, CDCES

    Registered Nurse Certified Diabetes Care and Education Specialist Inpatient Diabetes Educator

    Elizabeth Vitale, MS, RD, CDCES

    Elizabeth Vitale, MS, RD, CDCES

    Certified Diabetes Care and Education Specialist Registered Dietitian Training in Adult Weight Management

    Valerie Wolf, BSN, RN, RD, CDCES

    Valerie Wolf, BSN, RN, RD, CDCES

    Registered Nurse Registered Dietitian Certified Diabetes Care & Education Specialist Research Coordinator

    David Pham, PharmD, BCPS, CDCES, BC-ADM, APh

    David Pham, PharmD, BCPS, CDCES, BC-ADM, APh

    Diabetes Pharmacist Certified Diabetes Care and Education Specialist

    Chloe Su, PharmD, CDCES

    Chloe Su, PharmD, CDCES

    Diabetes Pharmacist Certified Diabetes Care and Education Specialist

    Research Staff

    Brittany Dennis, M.S.

    Brittany Dennis, M.S.

    Research Coordinator

    Community Service

    David Mina, M.P.H., C.D.C.E.S.

    David Mina, M.P.H., C.D.C.E.S.

    Health & Wellness Program Coordinator Certified Diabetes Care and Education Specialist

    Support Staff

    Itzel Garcia Vasquez

    Itzel Garcia Vasquez

    Medical Assistant

    Martha Castelan

    Martha Castelan

    Medical Assistant

    Violet Marquez

    Violet Marquez

    Medical Assistant

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