Penn Medicine Provider

John T. Farrar, MD, PhD

Make an appointmentCall 800-789-7366

About me

Co-Director, Master of Science in Clinical Epidemiology Program
Professor of Epidemiology in Biostatistics and Epidemiology at the Hospital of the University of Pennsylvania
Professor of Biostatistics, Epidemiology and Informatics in Anesthesiology and Critical Care
Professor of Biostatistics, Epidemiology and Informatics in Neurology

Education and training

Medical School: University of Rochester School of Medicine
Residency: California Pacific Medical Center
Residency: NewYork-Presbyterian/Weill Cornell Medical Center
Fellowship: Memorial Sloan-Kettering Cancer Center

Insurance accepted

Aetna

Amerihealth Caritas (Transplant patients only)

Capital Blue Cross/Capital Advantage Insurance Company

Centivo

Cigna Healthcare

Claim Watcher (Homestead/Index)

Clover Health

Devoted Health Plan

Geisinger Health Plan

Global Medical Management

HealthAmerica / HealthAssurance, a Coventry Plan

Highmark Blue Shield

Highmark Wholecare (fka Gateway Health)

Horizon BC/BS of NJ

Humana Medicare

Humana Military (Tricare/Health Net Federal Services)

Imagine Health (Imagine Health 360)

Independence Blue Cross (IBC)

Jefferson Health Plans/Health Partners

Jefferson Health Plans/Health Partners (Includes CHIP)

Keystone First Health Plan

Medicaid - New Jersey

Medicaid - Pennsylvania

Medicare - Pennsylvania

Oscar Health Plan of PA

Oxford Health Plan

PA Health & Wellness

Perennial Advantage

Preferred Health Care/Eliance

Provider Partners Health Plan

Qualcare

Rail Road Medicare/Palmetto GBA

UnitedHealthcare

UnitedHealthcare Community Plan of PA

UPMC Health Plan

US Family Health Plan

VA Insurance (Veteran's CCN)

My Locations

Penn Medicine hospital privileges

Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
Pennsylvania Hospital: Has privileges to treat patients in the hospital.
Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.

Dr. Farrar is a Penn Medicine physician.

Qualifications and experience

Board certifications

Memberships

A Multicenter, Randomized, Double-Blind, Placebo-Controlled, Adaptive Design Study Evaluating the Analgesic Efficacy and Safety of Intravenous CR845 In Patients Undergoing Abdominal Surgery. Cara Therapeutics, Inc., National
American College of Epidemiology, National
American Society for Clinical Pharmacology and Therapeutics, National
Apkarian 14-025-E "Corticostriatal Plasticity in the Transition to Chronic Pain: Effect of L-dopa", National
Aptinyx Incorporated, National
Canadian Pain Society, National
Effect of COMT Genetic Polymorphisms on Response to Propranolol Therapy in Temporomandibular Disorder (SOPPRANO), National
Food and Drug Administration, Anesthetic and Life Support Drugs Advisory Board, National
Indian Clinical Epidemiology Network, International
Initiative on Methods, Measurement, and Pain Assessment on Clinical Trials (IMMPACT), National
International Association for the Study of Pain, International
International Society for Pharmaco-Epidemiology, International
Investigation and Modulation of the Mu-Opioid Mechanisms in TMD(in vivo), NIH-NIDCR, National
National Academies of Sciences, Engineering, and Medicine, National
National Institute of Nursing Research (NINR)-"Nonpharmacologic Pain Management in FQHC Primary Care Clinics", National
National Institutes of Health NAME Scientific Review Committee, National
National Institutes of Health NCCAM CERC Scientific Review Committee, National
National Institutes of Health NIDCR ZDE1 VH22 Ad Hoc Scientific Review Committee for R34 and U01s, National
NIH HEAL Pain Strategic Planning Executive Committee, National
NIH Special Emphasis Panel, National Institutes of Health-"Behavioral Interventions, Obesity and Chronic Pain", National
NIH Special Emphasis Panel, National Institutes of Health, ZDE1 CF-(02), National
Pfizer, National
Philadelphia Pain Society, Local
Resiniferatoxin to Treat Severe Pain Associated with Advanced Cancer, National Institute of Neurological Disorders and Stroke, National
The American Academy of Neurology, National
United States – Association for the Study of Pain (Member since inception 2020), National
Vertex Pharmaceuticals Incorporated, National

Treatments and Conditions

My research

Sayegh RR, Vitale S, Agrón E, Farrar JT, Asbell PA, Chew EY; AREDS Research Group Prevalence and Risk Factors for the Development of Chronic Postoperative Pain After Cataract Surgery in the Age-Related Eye Disease Study (AREDS). , The Journal of Pain, 28: 2025

Miller CJ, Farrar JT Methodology for Determining Minimally Clinically Important Differences in Acute Pain Intensity with the Double Stopwatch Technique. , The Journal of Pain: 2025

Howard SD, Singh S, Macaluso D, Hsu JY, Cajigas I, Qiu L, Halpern CH, Aamodt WW, Farrar JT Correlation of the Clinical Rating Scale for Tremor with a Global Assessment. , Clinical Neurology and Neurosurgery : 2025

Aamodt WW, Sun C, Dahodwala N, Elser H, Schneider ALC, Farrar JT, Coe NB, Willis AW End-of-Life Health Care Service Use and Cost Among Medicare Decedents with Neurodegenerative Diseases. , Neurology, 103(9): 2024

Farrar JT, Locke KT Jr, Clemens JQ, Griffith JW, Harte SE, Kirkali Z, Kreder KJ, Krieger JN, Lai HH, Moldwin RM, Mullins C, Naliboff BD, Pontari MA, Rodríguez LV, Schaeffer AJ, Schrepf A, Stephens-Shields A, Sutcliffe S, Taple BJ, Williams DA, Landis JR Widespread Pain Phenotypes Impact Treatment Efficacy Results in Randomized Clinical Trials for Interstitial Cystitis/Bladder Pain Syndrome: a Multidisciplinary Approach to the Study of Chronic Pelvic Pain Network Study. , Pain, 166(5): 2025,1179-1190

Hohenschurz-Schmidt D, Cherkin D, Rice ASC, Dworkin RH, Turk DC, McDermott MP, Bair MJ, DeBar LL, Edwards RR, Evans SR, Farrar JT, Kerns RD, Rowbotham MC, Wasan AD, Cowan P, Ferguson M, Freeman R, Gewandter JS, Gilron I, Grol-Prokopczyk H, Iyengar S, Kamp C, Karp BI, Kleykamp BA, Loeser JD, Mackey S, Malamut R, McNicol E, Patel KV, Schmader K, Simon L, Steiner DJ, Veasley C, Vollert J. Methods for Pragmatic Randomized Clinical Trials of Pain Therapies: IMMPACT Statement. , Pain, 165(10): 2024,2165-2183

Howard SD, Singh S, Macaluso D, Cajigas I, Aamodt WW, Farrar JT. Validation of the International Classification of Diseases, Tenth Revision-Clinical Modification Diagnostic Code for Essential Tremor. , Tremor and Other Hyperkinetic Movements, 14(1): 2024,1-8

Haroutounian S, Holzer KJ, Kerns RD, Veasley C, Dworkin RH, Turk DC, Carman KL, Chambers CT, Cowan P, Edwards RR, Eisenach JC, Farrar JT, Ferguson M, Forsythe LP, Freeman R, Gewandter JS, Gilron I, Goertz C, Grol-Prokopczyk H, Iyengar S, Jordan I, Kamp C, Kleykamp BA, Knowles RL, Langford DJ, Mackey S, Malamut R, Markman J, Martin KR, McNicol E, Patel KV, Rice ASC, Rowbotham M, Sandbrink F, Simon LS, Steiner DJ, Vollert J Patient Engagement in Designing, Conducting, and Disseminating Clinical Pain Research: IMMPACT Recommended Considerations. , Pain, 165(5): 2024,1013-1028

Clemens JQ, Locke K Jr, Landis JR, Kreder K, Rodriguez LV, Yang CC, Tu FF, Harte SE, Schrepf A, Farrar JT, Sutcliffe S, Naliboff BD, Williams DA, Afari N, Spitznagle T, Taple BJ, Lai HH Validation of a Simple Body Map to Measure Widespread Pain in Urologic Chronic Pelvic Pain Syndrome: A MAPP Research Network Study. , Neurourology and Urodynamics, 43(3): 2024,727-737

Brown VL, James A, Hunleth J, Bradley CS, Farrar JT, Gupta P, Lai HH, Lowder JL, Moldwin R, Rodriguez LV, Yang CC, Sutcliffe S Believing Women: A Qualitative Exploration of Provider Disbelief and Pain Dismissal Among Women with Interstitial Cystitis/Bladder Pain Syndrome from the MAPP Research Network. , International Urogynecology Journal, 35(1): 2024,139-148