Faculty - Crozer-Keystone Health System - PA


Dina F. Capalongo, D.O.Dina F. Capalongo, D.O.

Chief, Division of General Internal Medicine

Program Director, Transitional First Year Residency

Dr. Dina Capalongo received her undergraduate degree from Duquesne University in 1987 and completed medical school in 1991 at the Philadelphia College of Osteopathic Medicine. She finished her Internal Medicine residency at Hahnemann University Hospital, where she was then appointed Chief Medical Resident. She is board-certified in Internal Medicine.

Dr. Capalongo serves as a clinician-educator for inpatient and ambulatory Internal Medicine and she has been the recipient of the Dean's Award of Excellence in Clinical Teaching from the medical students. Her interests include medical ethics and preventive medicine.

Ashish Rana, M.D., F.A.C.P.Ashish Rana, M.D., F.A.C.P.

Internal Medicine Residency Program Director

Senior Student Clerkship Director

Dr. Ashish Rana received his medical degree from the State University of New York-Stony Brook School of Medicine in 1992. Thereafter he completed his residency training at Thomas Jefferson University Hospital in 1995, after which he went on to practice medicine at the University of Pennsylvania-Presbyterian Medical Center campus for two years.

Dr. Rana joined the Crozer-Chester Medical Center in 1997 and began practice with Crozer Medical Associates. He is the Program Director and the course director of Evidenced-Based Medicine and actively participates in residency and student teaching. He also serves as the site director for the fourth year medical student subinternship rotation in Internal Medicine at Crozer. In April 2000 he was inducted as a Fellow of the American College of Physicians. He was nominated for the Golden Apple Teaching Award by the students of the graduating class of 2000 at Allegheny University Medical School (now Drexel University College of Medicine). In May 2005 he was appointed Associate Professor of Medicine at Temple University.

Dr. Rana's particular interest is evidence-based medicine, including incorporation of these principles into everyday practice.

Kshitij Thakur, M.D.Kshitij Thakur, M.D.

Internal Medicine Associate Program Director

Junior Student Clerkship Director

Dr. Kshitij Thakur received his medical degree from Delhi University in New Delhi, India in 2011. He completed his Internal Medicine residency at Crozer Chester Medical Center in June 2015. Immediately following his residency completion, Dr. Thakur was appointed Associate Program Director of Internal Medicine and began practice with the Crozer Medical Associates.

He also serves as the site clerkship director for third year medical students who rotate in Internal Medicine at Crozer.

Dr. Thakur conducted many research projects and presented his work in various national and regional conferences. Role of Arterial Line in Septic Shock and Utilization of Wells Score and D Dimer as pretest probability to rule out pulmonary embolism, are a couple of examples of his work.

Dr. Thakur is passionate about resident and student teaching.

C. Nathan Okechukwu, M.D., F.A.S.N., F.R.C.S.C. Nathan Okechukwu, M.D., F.A.S.N., F.R.C.S.

Chairman, Department of Medicine

Dr. Nathan Okechukwu is a board-certified physician specializing in Nephrology. Dr. Okechukwu received his medical degree from the University of Nigeria. He completed his residency at the University of Connecticut and his Nephrology fellowship at the University of Michigan, Ann Arbor. He is a fellow of the Royal College of Surgeons of Edinborough, Scotland, and is board-certified in Internal Medicine and Nephrology.

Dr. Okechukwu is committed to providing high-quality care for patients with hypertension and kidney disease, with an emphasis on prevention and treatment.

In his spare time, Dr. Okechukwu enjoys writing novels, poetry, golf, chess and playting the guitar.

Stephen T. Higgins, M.D.Stephen T. Higgins, M.D.

Pediatric Residency Program Director

Director of Undergraduate Medical Education

Dr. Higgins received his medical degree from Hahnemann University Hospital, Philadelphia, PA. He completed his Pediatric Residency and Neonatology Fellowship at Thomas Jefferson University, Philadelphia, PA. Dr. Higgins areas of special interest include maternal fetal medicine, neonatology and neonatal intensive care. He serves as the chief of Neonatology for Delaware County Memorial Hospital.

Find a Job

Crozer-Keystone Health System, the largest employer in Delaware County, is dedicated to providing a work environment that promotes professional growth and provides enrichment opportunities for its employees.

Search job opportunities in Delaware County and the Philadelphia Suburbs.