Team

Our team of board-certified allergists/immunologists evaluates and treats children with allergic disorders or asthma.

In 2014, Allergy & Asthma Medical Group became affiliated with Rady Children’s-Hospital San Diego and Rady Children’s Specialists of San Diego. Their services (excluding the Research Center) are now provided under the Rady Children’s Specialists of San Diego medical group name. The doctors formerly of AAMG (identified below) see both pediatric and adult patients.

Attending Physicians

Hal Hoffman, M.D., Division Chief, Allergy, Immunology & Rheumatology; Professor of Pediatrics and Medicine, UC San Diego

Seema Aceves, M.D, Ph.D., Director, Eosinophilic Gastrointestinal Disorders Clinic; Associate Professor of Pediatrics and Medicine, UC San Diego

Lori Broderick, M.D., Ph.D., Assistant Professor of Pediatrics, UC San Diego

Bob Geng, M.D., Assistant Clinical Professor, UC San Diego

*Alexander N. Greiner, M.D.

Anthony Horner, M.D., Associate Professor of Pediatrics, UC San Diego

*Susan S. Laubach, M.D., Assistant Clinical Professor of Pediatrics, UC San Diego

Sydney Leibel, M.D., Assistant Clinical Professor of Pediatrics, UC San Diego

Stephanie Leonard, M.D., Director, Food Allergy Center; Assistant Clinical Professor of Pediatrics, UC San Diego

*Nancy K. Ostrom, M.D.

*Michael J. Welch, M.D., Clinical Professor of Pediatrics, UC San Diego

* Formerly of Allergy & Asthma Medical Group

Nurse Practitioners

Noel Mateo, N.P.

Sara Lopez, N.P.

Research Nurse Practitioner

Amy NP Food Allergy CenterAmy Grissinger, M.S.N., C.P.N.P., F.N.P.-C, R.N.
Amy is the food allergy research nurse practitioner; her research interest is immunotherapy for children with food allergies.

She earned her Bachelor’s of Science in Nursing at the University of Iowa and her Master’s of Science in Nursing (Pediatric Nurse Practitioner-Primary Care, Family Nurse Practitioner- Primary Care) at the University of San Diego.

Originally from Chicago, Amy has lived in San Diego with her husband since 2011. She enjoys traveling, hiking, being outdoors, Chicago sports, reading and spending time with family and friends.