Meet the IBD Center Team

The IBD Center at Nicklaus Children’s Hospital brings together a comprehensive team of experts to support your child and family. The entire team takes part in clinical management to allow your child to benefit from multispecialty collaboration and consultation.

Alisa J Muniz Crim, MD

Director, Division of Gastroenterology
NCPS Chief, Section of Gastroenterology
Medical Director, IBD Center

Primary Office: Miami

Additional Office: West Kendall

Clinical Interests: Pediatric inflammatory bowel disease (IBD), celiac disease, feeding disorders, gastrointestinal dysmotility


Lina Maria Felipez, MD

Associate Medical Director, Inflammatory Bowel Disease (IBD) Center
Director, IBD Research

Primary Office: Miami

Additional Office: Miami Beach

Clinical Interests: Inflammatory Bowel Disease (IBD), reflux, constipation, celiac disease, eosinophilic esophagitis


Margot Caridad Sarratea, APRN

IBD Nurse Practitioner

Primary Office: Miami


IBD Center Nursing Team

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Natalie Castillo RN, BSN, CPN

IBD Infusion Nurse


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Kristin Concepcion MSN, RN, CPN

Quality Analyst


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Stacey Fandino BSN, RN, CPN

IBD Infusion Nurse


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Giovanna Quispe Nemeth, MSW

IBD Social Worker


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Mirta Rios, RD, CSP

IBD Dietician


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Lilliam Rosler DNP, APRN, FNP-C, CPN

IBD Nurse Practitioner


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Jennifer Stringer BSN, RN

IBD Center Manager


 A clinician identified with a Nicklaus Children's Pediatric Specialists logo is an affiliate of Nicklaus Children's Health System. All other clinicians listed on the website are in independent medical practices.