Penn Medicine Provider
About me
- Director of Clinical Clerkship in Radiology
- Associate Professor of Clinical Radiology
My education and training
- Rutgers New Jersey Medical SchoolMedical School
- Hennepin County Medical CenterResidency
- University of MinnesotaResidency
- Massachusetts General HospitalFellowship
Spoken languages
English
English
Insurance accepted
Please contact the practice and/or the member services department of your insurance company for specific details before receiving services. Providers may participate in some, but not all, products offered by a health plan; providers may also accept plans at some practice locations but not others.
- Aetna Advantra Cares D-SNP
- Aetna Advantra Credit Value
- Aetna Advantra Eagle HMO
- Aetna Advantra Eagle POS
- Aetna Advantra Premier Plus PPO
- Aetna Advantra Value
- Aetna Advantra Value Plus
- Aetna APCN Plus (Multi-Tier)
- Aetna Better Health Kids (CHIP) - DH Only
- Aetna Flexible Five
- Aetna Freedom Core
- Aetna Gold
- Aetna HMO
- Aetna Philly Prime
- Aetna POS
- Aetna PPO APCN
- Aetna Premier
- Aetna Premier Plus
- Aetna Savings Plus
- Aetna Signature Administrators
- Aetna Student Health Plan PPO
- Aetna Upfront Advantage
- First Health HMO
- First Health POS
- First Health PPO
- Meritain - Aramark (Other)
- Meritain - Aramark (Pennsylvania Premier Medical Plan)
- Americhealth Caritas of PA VIP - LGH Only
- Amerihealth Caritas (Transplant patients only)
- Amerihealth Caritas of PA - LGH Only
- Amerihealth of NJ Core
- Amerihealth of NJ Enhanced
- Amerihealth of NJ HMO
- Amerihealth of NJ Local Value
- Amerihealth of NJ POS
- Amerihealth of NJ PPO
- Amerihealth of NJ Regional Preferred
- Amerihealth of NJ Secure
- Amerihealth of NJ Ultimate (PPO)
- Centivo EPO
- Cigna Healthcare EPO
- Cigna Healthcare HMO
- Cigna Healthcare POS
- Cigna Healthcare PPO
- Claim Watcher (Homestead/ INDECs) Open Access
Penn Medicine hospital privileges
- Chester County Hospital: Has privileges to treat patients in the hospital.
- Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
- Penn Medicine Rittenhouse Long-Term Acute Care Hospital
- Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
- Pennsylvania Hospital: Has privileges to treat patients in the hospital.
Dr. Nachiappan is a Penn Medicine physician.
Qualifications and experience
- Diagnostic Radiology, 2007
- American College of Radiology, National
- Association of Academic Radiology, National
- Pennsylvania Radiological Society, Local
- Radiological Society of North America, International
- Society of Thoracic Radiology, National
Treatments and conditions
Research
Publications
Nachiappan AC*, Hu AC*, Stecher P, Su Y, Donuru A, Jacob JCM, Dave JK, Simpson SA, Pugliese SC, Maforo NG, Jamal F Defining an Upper Hounsfield Unit Threshold for Acute Pulmonary Embolism in Computed Tomography Pulmonary Angiography. , Journal of Thoracic Imaging: 2026
Donuru A, Torigian DA, Nachiappan AC Grayscale Inversion to aid Diagnosis of Acute Occlusive and Chronic Pulmonary Embolism on CT. , International Journal of Angiology, 33(2): 2024,132–133
Simpson S, Hershman M, Nachiappan AC, Raptis C, Hammer MM The Short and Long of COVID-19: A Review of Acute and Chronic Radiologic Pulmonary Manifestations of SARS-2-CoV and Their Clinical Significance. , Clinics in Chest Medicine, 45(2): 2024,383-403
Donuru A, Araki A, Dako F, Dave JK, Perez RP, Xu D, Nachiappan A, Barbosa EB Jr, Noel P, Litt H, Knollman F Photon-counting detector CT allows significant reduction in radiation dose while maintaining image quality and noise on non-contrast chest CT. , European Journal of Radiology Open, 11: 2023,100538
Thomas SP, Fathy R, Aepli S, Clancy CB, Lipschik GY, Simpson SA, Katz SI, Doms RW, Nachiappan AC Comparative Evaluation of Choose Your Own Adventure and Traditional Linear Case Formats in Radiology Small Group Teaching. , Academic Radiology, 29(Suppl 5): 2022,S82-S88
Hao M, Edmonds CE, Nachiappan AC, Conant EF, Zuckerman SP Management Strategies for Patients Presenting With Symptomatic Lymphadenopathy and Breast Edema After Recent COVID-19 Vaccination. , American Journal of Roentgenology, 218(6): 2022,970-976
Weeks JK, Pakpoor J, Park BJ, Robinson NJ, Rubinstein NA, Prouty SM, Nachiappan AC Harnessing Augmented Reality and CT to Teach First-Year Medical Students Head and Neck Anatomy. , Academic Radiology, 28: 2021,871-876
Shah P, Sheng M, Mankoff DA, Trerotola SO, Galperin-Aizenberg M, Katz SI, Barbosa EJM, Nachiappan AC Impact of early radiology research experiences on medical student perceptions of radiology and research: a pilot study. , Current Problems in Diagnostic Radiology, 48(5): 2019,423-426
Sheng M, Shah P, Choi JM, Gillis E, Katz SI, Simpson SA, Novak SH, Nachiappan AC Patient-Centered and Specialty-Specific Case Work-Up: An Effective Method for Teaching Appropriateness of Imaging to Medical Students. , Academic Radiology, 26(6): 2019,846-850
Hammer MM, Nachiappan AC, Barbosa EJM Jr Limited Usage of Pulmonary Nodule Risk Calculators for Managing Large Nodules. , Current Problems in Diagnostic Radiology, 47(1): 2018,23–27