Optimal Weight for Life (OWL) Program | Meet our Team

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Medical 

David Ludwig, MD, PhD
Founder and Senior Physician

Amy Fleischman, MD, MMSc
Director

Melissa Crocker, MD
Director, Type 2 Diabetes Program

Maryanne Lewis, MSN, PNP-BC
Robert Markowitz, MD
Stavroula Osganian, MD, ScD, MPH
Erinn Rhodes, MD, MPH

Clinical Nutrition

Kelsea Gusk, RD, LDN
Leslie Mattimore, MS, RD, LDN (lead dietician)
Suzanne Rostler, MS, RD, LDN
Sharon Weston, MS, RD, LDN

Behavioral Medicine

Lori Fishman, PsyD
Abigail Seibert, PhD (lead psychologist)

Administration

Joyceanna Fidalgo
Ambulatory Clinic Supervisor

Sarah Picard, MA, MEd
Physical Activity Specialist

Steven Coletti
Resource Specialist

Melissa Crocker, MD

Melissa Crocker, MD, MBA

Assistant in Medicine

Department: Endocrinology

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Amy Fleischman

Amy Fleischman, MD, MMSc

Assistant in Medicine; Medical Director, Optimal Weight for Life (OWL) Program; Assistant Clinical Director, Ambulatory Endocrinology

Department: Endocrinology

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Maryanne Lewis MSN CP

Maryanne Lewis

Department: Endocrinology

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David Ludwig

David Ludwig, MD, PhD

Senior Physician in Medicine; Director, New Balance Foundation Obesity Prevention Center Director, Optimal Weight for Life (OWL) Program Senior Physician in Medicine; The John Fielding Crigler, Jr. & Mary Adele Sippel Crigler Chair in Pediatric Endocrinology

Department: Endocrinology

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Robert Markowitz, MD

Assistant in Medicine

Department: Endocrinology

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Erinn Rhodes

Erinn Rhodes, MD, MPH

Assistant in Medicine; Director, Endocrinology Healthcare Research and Quality Director, Type 2 Diabetes Program

Department: Endocrinology

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Stavroula Osganian MD MPH ScD

Stavroula Osganian, MD, ScD, MPH

Associate Physician in Medicine

Department: Endocrinology

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- Sandra L. Fenwick, President and CEO

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