Ira J. Bleiweiss, MD
Pathology and Laboratory Medicine
Sees patients age 18 and up
Penn Pathology and Laboratory Medicine HUP
Penn Medicine Provider
About me
- Professor of Pathology and Laboratory Medicine at the Hospital of the University of Pennsylvania
My education and training
- Saint George's University School of MedicineMedical School
- Mount Sinai Medical CenterResidency
- Mount Sinai Medical CenterFellowship
- Memorial Sloan-Kettering Cancer CenterFellowship
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)
- Centivo EPO
- Cigna Healthcare EPO
- Cigna Healthcare HMO
- Cigna Healthcare POS
- Cigna Healthcare PPO
- Claim Watcher (Homestead/ INDECs) Open Access
- Clover Health Choice
- Clover Health Choice Value PPO
- Clover Health Classic HMO
- Clover Health Value
- Devoted Health Choice Giveback Pennsylvania (PPO)
- Devoted Health Choice Pennsylvania (PPO)
- Devoted Health Choice Plus Pennsylvania (PPO)
- Devoted Health Core Pennsylvania (HMO)
- Devoted Health Dual Plus Pennsylvania (HMO D-SNP)
- Devoted Health Giveback Pennsylvania (HMO)
Locations
Penn Medicine hospital privileges
- Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
- Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
- Pennsylvania Hospital: Has privileges to treat patients in the hospital.
Dr. Bleiweiss is a Penn Medicine provider.
Qualifications and experience
- Pathology - Anatomic and Clinical Pathology, 1988
- Association of Directors of Anatomic and Surgical Pathology, National
- Cancer Family Registry for Breast Cancer Studies (CFRBCS), National
- College of American Pathologists, National
- International Academy of Pathologists, US/Canadian Division, International
- National Cancer Institute (NCI) Clinical Trials Cooperative Group Program, National
- New York Metropolitan Breast Cancer Group, Local
- New York Pathological Society, Local
- The American Society of Breast Disease, National
- The Arthur Purdy Stout Society of Surgical Pathologists, National
- The International Sentinel Node Society, International
- The International Society of Breast Pathology, International
- Young Survival Coalition: Young Women United against Breast Cancer, National
All conditions and treatments
Research
Publications
Zafar U, Duque PNA, Vickey J, Bleiweiss IJ, Nayak A. Benign and atypical breast vascular lesions in the era of expanded breast MRI: radiologic-pathologic correlation and downstream surgical outcomes. Abstract accepted for presentation at the United States and Canadian Academy Pathologists Annual Meeting, Vancouver, March 2027. , Modern Pathology: 2027
Avalos Hernandez S, Hu T, Vickery J, Dumoff K, Bleiweiss I, Nayak A Clinicopathologic Spectrum of Cystic Hypersecretory Breast Lesions and Ki-67 Index Analysis , Modern Pathology: 2026
Tondi Resta I, Nelson ND, Toorens E, Bleiweiss IJ, Nayak A Mucinous Cystadenocarcinomas of the Breast Exhibit Heterogeneous Genomic Profile as Triple Negative Breast Cancer, Harbor Alterations in PIK3CA, PTEN, AKT1, and GNAS Genes, and May Not Be Indolent , Int J Surg Pathol, 33(7): 2025,1583-1592
Nayak A, Demarest K, Bleiweiss IJ, Shah PD Pathologic response of metaplastic carcinomas to KEYNOTE-522 regimen: correlation with histological subtypes. , Mod Pathol: 2025
Avalos Hernandez SR, Hu T, Dumoff KL, Vickery JM Bleiweiss IJ, Nayak A Invasive lobular carcinoma with extracellular mucin (ILCEM) presenting at distant metastases and recurrences may exhibit triple negative phenotype , Mod Pathol: 2025
Tondi Resta I, Hu T, Dumoff KL, Avalos Hernandez SR, Vickery JM Bleiweiss IJ, Nayak A Tubulopapillary carcinomas of the breast: histopathologic features, immunohistochemical staining with p16, p53, and SOX10, and molecular findings , Mod Pathol: 2025
Narasimhamurthy M, Le A, Boruah N, Moses R, Kelly G, Bleiweiss I, Maxwell KN, Nayak A. Clinicopathologic Features of Breast Tumors in Germline TP53 Variant-Associated Li-Fraumeni Syndrome , Am J Surg Pathol, 49: 2025,195-205
Tondi Resta I, Goldbach MM, Tchou JC, Bleiweiss IJ, Nayak A Pathologic Features and Residual Cancer Burden (RCB) after Neoadjuvant Endocrine Therapy (NET) in Hormone Receptor Positive Breast Cancer (HR+ BC). , Mod Pathol: 2024
Lennerz JK, Pantanowitz L, Amin MB, et al. Ensuring remote diagnostics for pathologists: an open letter to the US Congress. , Nat Med, 12: 2022,2453-2455
Narasimhamurthy M, Good M, Desai H, Le A, Bleiweiss IJ, Maxwell K, Nayak A Clinico-pathological features of breast tumors associated with Li-Fraumeni Syndrome , Mod Pathology, 35: 2022,196-198