Meet the Team
Our Clinicians
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Read Dana Direnzo, MD, MHS's BioDana Direnzo, MD, MHS
Associate Professor of Clinical Medicine
Dana Direnzo, MD, MHS
Associate Professor of Clinical Medicine
Dr. Dana DiRenzo is an Associate Professor of Clinical Medicine at the Penn Sjogren's Center. She received her undergraduate medical degree from Temple University and completed residency in Internal Medicine at the University of Maryland. She then went on to complete a fellowship in Rheumatology at the Johns Hopkins Hospital with additional obtainment of a Masters of Health Science (MHS) in the Graduate Training Program in Clinical Investigation from The Johns Hopkins Bloomberg School of Public Health. After fellowship, she was on faculty at Johns Hopkins (2019-2021) and a member of their Sjogren's Center and subsequently joined faculty at the University of Pennsylvania in July 2021. Her research interests in Sjogren's include health related quality of life (HRQoL) and she is on the steering committee for the Outcome Measures in Rheumatology (OMERACT) for the Sjogren's working group. She leads the Prospective Longitudinal Study to Understand Sjogren's (PLUS). She additionally has expertise in inflammatory arthritis and musculoskeletal ultrasound with a RhMSUS certification.
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Read Chadwick Johr, MD's BioChadwick Johr, MD
Associate Professor of Clinical Medicine
Chadwick Johr, MD
Associate Professor of Clinical Medicine
Dr. Chadwick R. Johr joined the Penn Sjögren's Center in 2011 and has devoted more than a decade to the care of patients with Sjögren's disease. Working closely with the Center's founder, Dr. Frederick B. Vivino, he developed extensive expertise in this complex systemic autoimmune disease before assuming the role of Director of the Penn Sjögren's Center in 2022.
Dr. Johr is a former member of the Sjögren's Foundation Board of Directors, where he served for six years and contributed to the Foundation's mission of advancing research, education, advocacy, and patient support. A strong advocate for patient and provider education, he has presented at multiple national Sjögren's conferences and is a contributing author to The Sjögren's Book, 5th Edition.
Dr. Johr received his medical degree from the Pennsylvania State University Milton S. Hershey School of Medicine. He completed residency training in Internal Medicine and Pediatrics at Brown University and fellowship training in Rheumatology at the University of Iowa Hospitals and Clinics.
As an Associate Professor of Clinical Medicine at the Perelman School of Medicine, Dr. Johr serves as Director of the Penn Sjögren's Center and as a member of the Core Faculty for the Penn-CHOP Internal Medicine-Pediatrics Residency Program. He is one of six Measey preceptors, helping educate and mentor medical students in internal medicine and clinical skills development.
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Read Nora Sandorfi, MD's BioNora Sandorfi, MD
Professor of Clinical Medicine
Nora Sandorfi, MD
Professor of Clinical Medicine
Dr. Nora Sandorfi is a Professor of Clinical Medicine in the Penn Division of Rheumatology at the University of Pennsylvania. Her clinical practice is primarily focused on the treatment of the challenging condition, Sjögren's. During the past close to two decades, she has served as a Principal Investigator on numerous clinical trials in Sjögren's, contributed to multiple publications, and trained fellows at the Sjögren's specialty clinic. Dr. Sandorfi also regularly participates in multiple educational events organized for patients with Sjögren's. In her free time, she is an avid athlete and most importantly the proudest mom of her three young adult children.
Partners in Care
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Vatinee Y. Bunya, MD, MSCE
Ophthalmology
Vatinee Y. Bunya, MD, MSCE
Ophthalmology
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Kristin M. Hammersmith, MD
Ophthalmology
Kristin M. Hammersmith, MD
Ophthalmology
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Parveen K. Nagra, MD
Ophthalmology
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Soo Kim Abboud, MD
Otolaryngology
Soo Kim Abboud, MD
Otolaryngology
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Christopher H. Rassekh, MD
Otolaryngology
Christopher H. Rassekh, MD
Otolaryngology
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Roopali Kulkarni, DMD, MPH
Oral Medicine
Roopali Kulkarni, DMD, MPH
Oral Medicine
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Temitope Omolehinwa BDS, DScD, DMD
Oral Medicine
Temitope Omolehinwa BDS, DScD, DMD
Oral Medicine
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Thomas P. Sollecito, DMD
Oral Surgery
Thomas P. Sollecito, DMD
Oral Surgery
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Sami L. Khella, MD
Neurology
Sami L. Khella, MD
Neurology
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Nitin K. Ahuja, MD, MS
Gastroenterology
Nitin K. Ahuja, MD, MS
Gastroenterology
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Ernesto Gonzaga, MD
Gastroenterology
Ernesto Gonzaga, MD
Gastroenterology
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Cheilonda Johnson, MD, MHS
Pulmonology
Cheilonda Johnson, MD, MHS
Pulmonology
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Kathryn Flack, MD
Pulmonology
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Robert M. Kotloff, MD
Pulmonology
Robert M. Kotloff, MD
Pulmonology
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Maryl Kreider, MD, MSCE
Pulmonology
Maryl Kreider, MD, MSCE
Pulmonology
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Namrata B. Patel, MD
Pulmonology
Namrata B. Patel, MD
Pulmonology
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Shweta Sood, MD, MS
Pulmonology
Shweta Sood, MD, MS
Pulmonology
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Kelly Anne Spratt, DO
Cardiology
Kelly Anne Spratt, DO
Cardiology
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Joshua Daniel Brandstadter, MD, PhD, MSc
Hematology
Joshua Daniel Brandstadter, MD, PhD, MSc
Hematology
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Sunita D. Nasta, MD
Hematology
Sunita D. Nasta, MD
Hematology
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Gaia Coppock, MD
Nephrology
Gaia Coppock, MD
Nephrology
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Abdallah Geara, MD
Nephrology
Abdallah Geara, MD
Nephrology
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Ali Haider Dhanaliwala, MD, PhD
Radiology
Ali Haider Dhanaliwala, MD, PhD
Radiology
Research Team
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Sally Thompson, MBE
Clinical Research Manager
Sally Thompson, MBE
Clinical Research Manager
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Kathryn Doyle
Research Laboratory Manager
Kathryn Doyle
Research Laboratory Manager
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Lauren Quinlan
Clinical Research Coordinator
Lauren Quinlan
Clinical Research Coordinator
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Amanda Shini
Clinical Research Coordinator
Amanda Shini
Clinical Research Coordinator
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Alex Steenstrup
Clinical Research Coordinator
Alex Steenstrup
Clinical Research Coordinator
