Meet the Team
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David T. Ahn, MD
- Endocrinologist
- Dr. Kris V. Iyer Endowed Chair in Diabetes Care
- Chief of Diabetes Services at Hoag
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Tanzila S. Razzaki, MD
- Endocrinologist/ Weight Management
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Kirsten Bohrnell, R.D., C.D.C.E.S.
- Registered Dietitian
- Certified Diabetes Care & Education Specialist
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Cristi Bristol, BSN, RN, CDCES
- Certified Diabetes Care and Education Specialist
- Registered Nurse
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Michelle Connell, RN, CDCES
- Certified Diabetes Care and Education Specialist
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Brittany Dennis, M.S.
- Research Coordinator
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Karen Engelman
- Manager of Operations
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Meghan Gonzalez, RD, CDCES
- Certified Diabetes Care and Education Specialist
- Registered Dietitian
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Ruth Hwang, P.A.-C.
- Physician Assistant
- Endocrinology
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Kris V. Iyer, M.D., F.A.C.P., F.A.C.E
- Senior Vice President & Chief Physician Development Officer
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Veronica Merino, LVN
- Licensed Vocational Nurse
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Christine Miller
- Front Office Supervisor
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David Mina, M.P.H.
- Health & Wellness Program Coordinator
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Julia Murphy, P.A.-C.
- Physician Assistant
- Endocrinology
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David Pham, PharmD, BCPS, CDCES, BC-ADM
- Pharmacist
- Certified Diabetes Care and Education Specialist
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Michelle Speetzen, BSN, RN
- Inpatient Diabetes Educator RN
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Elizabeth Vitale, MS, RD, CDCES
- Certified Diabetes Care and Education Specialist
- Registered Dietitian
- Training in Adult Weight Management
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Valerie Wolf, B.S.N., R.N., R.D., C.D.C.E.S.
- Registered Nurse
- Registered Dietitian
- Certified Diabetes Care & Education Specialist
- Research Coordinator
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Amanda Tran, PharmD, BCACP, APh, CDCES
- Ambulatory Care Pharmacist
- Certified Diabetes Care and Education Specialist