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Learn more about Dr. John Tomaszewski:

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. John Tomaszewski is Excellent. Dr. Tomaszewski has been reviewed by 1 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 3.7
Follows Up After Visit 3.7

Specialties & Research

Dr. John Tomaszewski, MD is board certified in Anatomic Pathology & Clinical Pathology and Immunopathology.

  • He has special expertise in 19 areas:
  • Adenoma (Warthin's tumor)
  • Amyloidosis
  • Angiomyolipoma
  • Breast Cancer
  • Carcinoma
  • Enlarged Prostate (Prostatic Hyperplasia)
  • Glandular Cancer (Adenocarcinoma)
  • Herpesviridae Infections
  • Kidney Cancer
  • Kidney Cancer (Renal Cell Carcinoma)
  • Kidney Disease
  • Liver Cancer
  • Lymphoproliferative Disorders
  • Metastatic Breast Cancer
  • Prostate Cancer (Prostatic Neoplasm)
  • Prostate Surgery (Prostatectomy)
  • Urinary Bladder Cancer
  • Urinary Bladder Cancer (Transitional Cell Carcinoma)
  • Uterine Cancer

Education & Awards

Dr. Tomaszewski graduated from University of Pennsylvania , Philadelphia. He has 10 awards.

One of America's Leading Experts on:
Glandular Cancer (Adenocarcinoma)
Kidney Cancer (Kidney Neoplasm)
Kidney Cancer (Renal Cell Carcinoma)
Lymphoproliferative Disorders
Prostate Cancer (Prostatic Neoplasm)
Castle Connolly America's Top Doctors® (2005 - 2008, 2010 - 2015)
Castle Connolly America's Top Doctors® for Cancer (2005 - 2007, 2009 - 2012, 2014 - 2015)


Dr. Tomaszewski has 4 hospital affiliations:

  • Hospital of the University of PA 
  • Pennsylvania Hospital University PA Health System 

> > > > Dr. John Tomaszewski, MD

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Additional Information
Dr. John Edward Tomaszewski MD is a male Pathologist, has 35 years of experience and practices in Pathology, Anatomic Pathology & Clinical Pathology, Immunopathology, Anatomic Pathology, and Clinical Pathology.
Where does Dr. John E. Tomaszewski practice?
Dr. John Tomaszewski has 1 office location.
Dr. John Tomaszewski practices Pathology, Anatomic Pathology & Clinical Pathology, Immunopathology, Anatomic Pathology, and Clinical Pathology near Buffalo, NY.
See Buffalo Pathologists.