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    Contributors to MDCalc

    MDCalc's Contributors author the content accompanying calcs, which provides guidance on When to Use, Pearls/Pitfalls, Why Use, Next Steps, and an Evidence Appraisal. Our Contributors tend to be academic physicians practicing clinically, typically earlier in their careers, who are passionate about EBM and interested in translating evidence into usable bedside tools.

    Contributors who write content for three or more calcs or other reviews have the opportunity to be listed on this page, with an expected contribution of one calc per year thereafter to be considered an active contributor (see past contributors here).

    We also consider fellows and senior residents going into academic medicine. Applications for Contributors are reviewed on a rolling basis. Contributors may also be invited to peer review other calculators in their specialty.

    To apply, please submit your application here.

    Akhil Khosla, MD

    Akhil Khosla, MD, is a pulmonary and critical care physician at Yale-New Haven Hospital. A native of Ontario, Canada, Dr. Khosla completed his internal medicine residency at Norwalk Hospital in Connecticut and then completed fellowships in pulmonary and critical care at Norwalk Hospital and Yale University School of Medicine. His current clinical and research interests include acute pulmonary embolism, airway management in the ICU, shock, and resuscitation. He is actively involved in a number of quality improvement projects including management of pulmonary embolism response teams (PERTs).

    Calculators contributed to: BODE Index for COPD Survival Bova Score for Pulmonary Embolism Complications | DECAF Score for Acute Exacerbation of COPD | BAP-65 Score for Acute Exacerbation of COPD

    Benjamin Kummer, MD

    Benjamin Kummer, MD, is currently the inaugural Clinical Informatics fellow at New York Presbyterian Hospital, a joint program with Columbia University’s Department of Biomedical Informatics. A New York City native, Dr. Kummer earned a BA from the University of Pennsylvania before working for several years as a business systems analyst at Capital IQ, a financial technology firm. He received his MD from Drexel University College of Medicine in Philadelphia and completed residency training in neurology at the Neurological Institute of New York at Columbia University Medical Center, followed by a fellowship in stroke neurology at New York-Presbyterian Hospital/Weill-Cornell Medical Center.

    Calculators contributed to: Secondary Intracerebral Hemorrhage (sICH) Score Fisher Grading Scale for Subarachnoid Hemorrhage (SAH) | Modified Fisher Grading Scale for Subarachnoid Hemorrhage (SAH) | Modified SOAR Score for Stroke | ASTRAL Score for Ischemic Stroke | Cincinnati Prehospital Stroke Severity Scale (CP-SSS) | Intracerebral Hemorrhage (ICH) Score | Hunt & Hess Classification of Subarachnoid Hemorrhage

    Benjamin Slovis, MD

    Benjamin H. Slovis, MD, MA, is an emergency medicine physician and informatician in the department of emergency medicine at Thomas Jefferson University in Philadelphia. A native of New Jersey, Dr. Slovis attended Cornell University for his undergraduate studies and received his MD from UMDNJ–Robert Wood Johnson Medical School. He completed his residency at the Icahn School of Medicine at Mount Sinai and a National Library of Medicine Post-Doctoral Research Fellowship with a masters degree from the department of Biomedical Informatics at Columbia University. His research interests include clinical decision support systems, health-information exchange, and medical education.

    Calculators contributed to: Altitude-Adjusted PERC Rule Wells' Criteria for Pulmonary Embolism | Simplified PESI (Pulmonary Embolism Severity Index) | Pulmonary Embolism Severity Index (PESI) | Geneva Score (Revised) for Pulmonary Embolism | DASH Prediction Score for Recurrent VTE | POMPE-C Tool for Pulmonary Embolism Mortality | Padua Prediction Score for Risk of VTE | Critical Care Pain Observation Tool (CPOT) | PERC Rule for Pulmonary Embolism | Wells' Criteria for DVT

    Carlos Rodriguez, MD

    Carlos Rodriguez, MD, is a clinical assistant professor and assistant director of the medical education fellowship at the department of emergency medicine at Thomas Jefferson University Hospital in Philadelphia, PA. Originally from Puerto Rico, Dr. Rodriguez earned his medical degree from San Juan Bautista School of Medicine in Puerto Rico. He later completed his emergency medicine residency at Lincoln Hospital in New York and a medical education fellowship at Thomas Jefferson University Hospital. Currently, he is in the process of obtaining a masters of education in the health professions from Johns Hopkins University. His interests include graduate medical education and faculty development.

    Calculators contributed to: Vancouver Chest Pain Rule

    Chetana Pendkar, MBBS

    Chetana Pendkar, MBBS, is a pulmonary critical care fellow at SUNY Downstate in Brooklyn, New York. Born and raised in Mumbai, she received her MBBS from Lokmanya Tilak Municipal Medical College, Mumbai. Dr. Pendkar completed her internal medicine residency at Maimonides Medical Center in Brooklyn. Her clinical interests include pulmonary physiology, ventilation, and extracorporeal membrane oxygenation.

    Calculators contributed to: Acute Decompensated Heart Failure National Registry (ADHERE) Algorithm GWTG-Heart Failure Risk Score | Urinary Protein Excretion Estimation

    Christian Hietanen, DO

    Christian Hietanen, DO, is a clinical assistant professor in the department of primary care at Touro College of Osteopathic Medicine in Middletown, New York. Dr. Hietanen graduated from Canisius College in his hometown of Buffalo, NY, and received his DO from the New York College of Osteopathic Medicine. He completed a pediatrics residency at Upstate Medical University and then moved to the Hudson Valley to practice outpatient pediatrics. Additionally, he directs the third-year pediatric clerkship at Orange Regional Medical Center in Middletown, and he continues his practice on a part-time basis.

    Calculators contributed to: Shock Index, Pediatric Age-Adjusted (SIPA) Paradise Criteria for Tonsillectomy in Children | FeverPAIN Score for Strep Pharyngitis

    Christopher Tainter, MD, RDMS

    Christopher Tainter, MD, RDMS, is an intensivist and emergency physician at the University of California, San Diego. Raised in Seattle, Dr. Tainter received his medical degree from the University of Washington School of Medicine. He then completed an emergency medicine residency at the Mount Sinai Hospital in New York City, and a fellowship in anesthesia critical care medicine at the Massachusetts General Hospital. He is the fellowship director for UCSD's emergency medicine/anesthesia critical care medicine fellowship program.

    Calculators contributed to: ACTION ICU Score for Intensive Care in NSTEMI RESP (Respiratory ECMO Survival Prediction) Score | SAVE (Survival after Veno-Arterial ECMO) Score | PECARN Rule for Low Risk Febrile Infants 29-60 Days Old

    Cullen Clark, MD

    Cullen Clark, MD, is a combined emergency medicine/pediatrics resident at Louisiana State University Health Sciences Center in New Orleans. Originally from Louisville, Kentucky, Cullen is a graduate of the University of Louisville School of Medicine. His areas of interest include pediatric emergency medicine, pediatric critical care, pain management in the emergency department, and disaster medicine.

    Calculators contributed to: ABC Score for Massive Transfusion Bacterial Meningitis Score for Children | Pediatric Asthma Score (PAS) | PECARN Pediatric Intra-Abdominal Injury (IAI) Algorithm | HEART Pathway for Early Discharge in Acute Chest Pain | Ottawa Heart Failure Risk Scale (OHFRS) | San Francisco Syncope Rule

    Daniel Runde, MD

    Daniel Runde, MD, is currently the assistant residency director and an assistant professor of emergency medicine at the University of Iowa Hospitals and Clinics. He received his medical degree at the University of Iowa Carver College of Medicine and completed residency in emergency medicine at St. Luke’s-Roosevelt Hospital Center in New York. He recently finished his Medical Education Fellowship at the department of emergency medicine at Harbor-UCLA. Dr. Runde is interested in evidence-based medicine with a focus on patient-important clinical outcomes, CT utilization in the emergency department and education and evaluation in medical education. Currently, he is in the process of obtaining a Masters in Medical Education through the Office of Consultation and Research in Medical Education at the University of Iowa Hospitals and Clinics.

    Calculators contributed to: Newsom Score for Non-traumatic Chest Pain Pediatric NEXUS II Head CT Decision Instrument for Blunt Trauma | THRIVE Score for Stroke Outcome | Modified NIH Stroke Scale/Score (mNIHSS) | Simplified Motor Score (SMS) | Emergency Department Assessment of Chest Pain Score (EDACS) | Modified Rankin Scale for Neurologic Disability | DRAGON Score for Post-TPA Stroke Outcome | Barnes Jewish Hospital Stroke Dysphagia Screen | tPA Contraindications for Ischemic Stroke | Alberta Stroke Program Early CT Score (ASPECTS) | ABCD<sup>2</sup> Score for TIA | CHADS<sub>2</sub> Score for Atrial Fibrillation Stroke Risk | YEARS Algorithm for Pulmonary Embolism (PE) | New Orleans/Charity Head Trauma/Injury Rule | Canadian CT Head Injury/Trauma Rule | Glasgow Coma Scale/Score (GCS) | Canadian C-Spine Rule | NEXUS Criteria for C-Spine Imaging | NIH Stroke Scale/Score (NIHSS)

    Derek Tam, MD, MPH

    Derek Tam, MD, MPH, is a pediatric resident at Maimonides Children's Hospital in Brooklyn, NY. Dr. Tam completed an undergraduate degree in cognitive science at Northwestern University in Chicago, IL, and received his MD and MPH from the Northwestern University Feinberg School of Medicine. He will serve as chief resident for the pediatric residency program at Maimonides for the academic year 2019-2020 and plans to pursue a fellowship in pediatric emergency medicine. His academic interests include emergency medicine, pediatric resuscitation, antibiotic stewardship, and epidemiology.

    Calculators contributed to: Revised Schwartz Equation for Glomerular Filtration Rate (GFR) (2009) Withdrawal Assessment Tool (WAT-1) for Pediatric Withdrawal | Cornell Assessment of Pediatric Delirium (CAPD) | Pediatric Appendicitis Risk Calculator (pARC) | Pediatric NIH Stroke Scale (NIHSS) | Modified Mallampati Classification | Estimated/Expected Peak Expiratory Flow (Peak Flow)

    Edmund Tsui, MD

    Edmund Tsui, MD, is an assistant professor of ophthalmology at the Stein Eye Institute at the University of California, Los Angeles. He was previously a uveitis fellow at the Proctor Foundation at the University of California, San Francisco. Dr. Tsui obtained his medical degree from the Geisel School of Medicine at Dartmouth and completed his ophthalmology residency training at NYU where he was elected chief resident. He is also a social media editor forOphthalmology. His research interests include the use of multimodal ophthalmic imaging to diagnose and monitor uveitis.

    Calculators contributed to: Ocular Hypertension Treatment Study (OHTS) Calculator Visual Acuity Testing (Snellen Chart) | Color Vision Screening (Ishihara Test) | Hydroxychloroquine (Plaquenil) Dosing Calculator

    Elie Harmouche, MD

    Elie Harmouche, MD, is a medical toxicology fellow at the department of emergency medicine at New York University. He was born and raised in Beirut, Lebanon, and he received his medical degree from the American University of Beirut. He completed a residency in emergency medicine at Henry Ford Hospital in Detroit, MI and served as chief resident in his final year, followed by fellowship in toxicology at NYU Langone/Bellevue Hospital Center in New York City. His areas of interest include toxicology, addiction and substance use, simulation medicine, resuscitation, and critical care.

    Calculators contributed to: Prediction of Alcohol Withdrawal Severity Scale McMahon Score for Rhabdomyolysis | Naloxone Drip Dosing | High-dose Insulin Euglycemia Therapy (HIET)

    Evan Zeitler, MD

    Evan Zeitler, MD, is a nephrology fellow at UNC Chapel Hill in North Carolina. He has spent his medical career at UNC, completing medical school, residency, and a nephrology fellowship there. He is passionate about medical education, chronic kidney disease, and acid-base disorders. Dr. Zeitler's primary research is focused on obesity and its downstream effects on kidney metabolism and health.

    Calculators contributed to: Creatinine Clearance (Cockcroft-Gault Equation) MDRD GFR Equation

    Graham Walker, MD

    Graham Walker, MD, is an emergency physician practicing in San Francisco, California. Dr. Walker attended medical school at the Stanford University School of Medicine and then trained in emergency medicine at St. Luke’s-Roosevelt Hospital Center in New York City, where he was Chief Resident. He returned to the west coast as a Medical Simulation fellow and attending in Stanford’s emergency department. More relevant, of course, is that Dr. Walker is the creator and developer of MDCalc and remains active in content and calculator development, along with our many other endeavors as President of MD Aware, LLC (MDCalc’s parent company).

    Calculators contributed to: Modified Sequential Organ Failure Assessment (mSOFA) Score Roth Score for Hypoxia Screening | Static Lung Compliance (Cstat) Calculation | IV Drip Rate Calculator | Tisdale Risk Score for QT Prolongation | Berlin Criteria for Acute Respiratory Distress Syndrome | CSHA Clinical Frailty Scale (CFS) | Sepsis-Induced Coagulopathy (SIC) Score | ROX Index for Intubation after HFNC | COVID-GRAM Critical Illness Risk Score | Neutrophil-Lymphocyte Ratio (NLR) Calculator | GRACE ACS Risk and Mortality Calculator | ADAPT Protocol for Cardiac Event Risk | SEDAN Score for Post-tPA Hemorrhage | NEXUS Chest Decision Instrument for Blunt Chest Trauma | NAFLD (Non-Alcoholic Fatty Liver Disease) Fibrosis Score | Infective Endocarditis (IE) Mortality Risk Score | TIMI Risk Score for STEMI

    Hyunjoo Lee, MD

    Hyunjoo Lee, MD, is a clinical assistant professor in emergency medicine at Stony Brook University Hospital. Born and raised in New York, she left New York for her undergraduate studies at Swarthmore College where she received a BA in Biology. She returned to New York and did research in B-cell biology and CLL before heading back to school to obtain her MD from Stony Brook University School of Medicine. She completed her emergency medicine residency at Mount Sinai Beth Israel in New York City and a medical education fellowship in the department of emergency medicine at Thomas Jefferson University in Philadelphia.

    Calculators contributed to: ED-SAFE Patient Safety Screener 3 (PSS-3) ORBIT Bleeding Risk Score for Atrial Fibrillation | TIMI Risk Score for UA/NSTEMI | HEART Score for Major Cardiac Events | Troponin-only Manchester Acute Coronary Syndromes (T-MACS) Decision Aid | Jones Criteria for Acute Rheumatic Fever Diagnosis

    Joseph Mizrahi, MD

    Joseph Mizrahi, MD, is an internal medicine resident at Stony Brook University Hospital in New York. Born and raised in Brooklyn, New York, Dr. Mizrahi received his medical degree from the Sackler School of Medicine at Tel Aviv University, and he is also currently a student at the School of Public Health at Stony Brook University. Dr. Mizrahi's areas of interest include gastroenterology and colorectal cancer prevention and screening.

    Calculators contributed to: Cardiac Output (Fick’s Formula) Tokyo Guidelines for Acute Cholecystitis 2018 | Tokyo Guidelines for Acute Cholangitis 2018 | Prague C & M Classification for Barrett's Esophagus

    Joshua Beiner, MD

    Joshua Beiner, MD, is an attending physician and assistant professor of clinical emergency medicine and pediatrics at NYU. A native New Yorker, Dr. Beiner moved to New Orleans to study at Tulane University before traveling to Israel where he received his medical degree from Sackler School of Medicine at Tel Aviv University. He returned to New York to complete residency training in pediatrics at Albert Einstein – Jacobi Medical Center. His research interests include pediatric sepsis, clinical decision rules, evidence-based medicine, and emergency ultrasound.

    Calculators contributed to: Pediatric SIRS, Sepsis, and Septic Shock Criteria APGAR Score | PECARN Pediatric Head Injury/Trauma Algorithm | Westley Croup Score

    Justin Taylor, MD

    Justin Taylor, MD, is an assistant professor on the Leukemia Service at Memorial Sloan Kettering Cancer Center. He is board certified in internal medicine and medical oncology. He completed his internship and residency at Brigham and Women’s Hospital in Boston. His clinical and research focuses are on the basic biology and translational significance of somatic genetic mutations in hematologic malignancies.

    Calculators contributed to: Sokal Index for Chronic Myelogenous Leukemia (CML) EUTOS Score for Chronic Myelogenous Leukemia (CML) | MASCC Risk Index for Febrile Neutropenia | Revised International Prognostic Scoring System (IPSS-R) for Myelodysplastic Syndrome (MDS) | Mantle Cell Lymphoma International Prognostic Index (MIPI) | International Prognostic Index for Chronic Lymphocytic Leukemia (CLL-IPI)

    Matthew Lecuyer, MD, MPH

    Matthew Lecuyer, MD, MPH, is an attending physician and instructor in pediatric emergency medicine at the Children’s National Medical Center/George Washington University in Washington, DC. Dr. Lecuyer received his undergraduate degree from Georgetown University and his medical degree from the University of Massachusetts. He completed his pediatrics training at Northwestern/Lurie Children’s Hospital of Chicago in Chicago, IL, before completing his fellowship in pediatric emergency medicine and MPH at Brown University in Providence, RI. His interests include health policy, LGBTQ+ medicine, and pediatric emergency medicine.

    Calculators contributed to: Pediatric Trauma Score (PTS) Rule of 7s for Lyme Meningitis

    Matthew Negaard, MD

    Matthew Negaard, MD, is a current third-year emergency medicine resident at the University of Iowa. He grew up in Sioux City, Iowa and attended Northwestern College in Orange City, Iowa for his undergraduate education. Dr. Negaard received his medical degree from the University of Iowa Carver College of Medicine where he began to develop an interest in emergency medicine and sports medicine. He has continued to develop and expand his interest in those fields as well as medical education through clinical research and evidence-based practice activities. He plans to pursue a sports medicine fellowship upon completion of his residency.

    Calculators contributed to:

    Priya Patel, MD

    Priya Patel, MD, is currently a cornea fellow at Emory University in Atlanta, GA. She completed her ophthalmology residency at the New York University School of Medicine, where she was chief resident. A native of New Jersey, Dr. Patel attended Duke University for her undergraduate studies followed by medical school at Rutgers New Jersey Medical School. Her interests include healthcare accessibility and resident education.

    Calculators contributed to:

    Ronald George Hauser, MD

    Ronald "George" Hauser, MD, is an assistant professor in laboratory medicine at Yale University School of Medicine who splits his time between clinical medicine and informatics research. As an attending physician, he practices medicine at the interface between other clinicians and the clinical laboratories, which include Chemistry, Hematology, Microbiology, and the Blood Bank. He also works along with medical residents, particularly at the Veterans Affairs Hospital in West Haven, Connecticut. He practices clinical informatics for various projects affiliated at Yale University and the Veterans Health Administration (VHA) including the Recipient Epidemiology and Donor Evaluation Study (REDS; Yale, NIH) and the HIV, Hepatitis, and Related Conditions program (VHA).

    Calculators contributed to: Donor Lymphocyte Infusion (DLI) Volume

    Scott Lucyk, MD

    Scott Lucyk, MD, is an emergency physician and medical toxicologist with the Poison and Drug Information Service (PADIS) in Calgary, Alberta, Canada. Dr. Lucyk obtained his Fellowship of the Royal College of Physicians of Canada (FRCPC) in emergency medicine from the University of Alberta, followed by a fellowship in medical toxicology at the New York Poison Control Center in New York City. Currently, he is the associate medical director at PADIS and the program director of the clinical pharmacology and toxicology subspecialty in Calgary. Dr. Lucyk focuses his non-clinical time on medical education and resident teaching.

    Calculators contributed to: DigiFab (Digibind) Dosing for Digoxin Poisoning Acetaminophen Overdose and NAC Dosing

    Ziad Bakouny, MD, MSc

    Ziad Bakouny, MD, MSc, is a postdoctoral genitourinary oncology research fellow at the Dana-Farber Cancer Institute/Harvard Cancer Center. Dr. Bakouny received his medical degree from the University of Saint Joseph in Beirut, Lebanon, during which time he concurrently obtained a master’s in biomechanics and medical imaging. He has published more than 30 peer-reviewed papers, presented 70 abstracts at international scientific conferences, and received various awards for his research, including a Conquer Cancer Foundation merit award at the American Society of Clinical Oncology and Society for Immunotherapy of Cancer’s clinical immuno-oncology symposium. His areas of interest include genitourinary oncology, biomarker research, and bioinformatics.

    Calculators contributed to: Memorial Sloan-Kettering Cancer Center (MSKCC/Motzer) Score for Metastatic Renal Cell Carcinoma (RCC) IMDC (International Metastatic RCC Database Consortium) Risk Model for Metastatic Renal Cell Carcinoma

    Past Contributors