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Dr. John E. Tomaszewski, MD, MASCP

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Specializes in: Immunopathology and Surgical Pathology

University of Pennsylvania School of Medicine

Professional interests include: kidney problems

955 Main Street Room 4102
Buffalo, NY 14203

(716) 829-2846

Dr. John E. Tomaszewski, MD, MASCP is an immunopathologist in Buffalo, NY specializing in immunopathology and surgical pathology. He graduated from University of Pennsylvania School of Medicine. Dr. John E. Tomaszewski, MD, MASCP is affiliated with University at Buffalo - Jacobs School of Medicine and Biomedical Sciences, Kaleida Health, UBMD Physicians' Group, Kaleida Health Center for Laboratory Medicine and UNIVERSITY AT BUFFALO PATHOLOGISTS INC.

Office Locations

100 High Street
Buffalo, NY 14203

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Kaleida Health

115 Flint Road
Williamsville, NY 14221

(716) 626-7944

(716) 458-2145

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University at Buffalo - Jacobs School of Medicine and Biomedical Sciences

955 Main Street Room 4102
Buffalo, NY 14203

(716) 829-2846

(716) 829-2086

open_in_new

Kaleida Health

Ubmd Pathology Conventus Building 1001 Main Street, 4th Floor
Williamsville, NY 14203

(716) 323-0541

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In The News (see more mentions in the news)

“FormaPath and Dr. John Tomaszewski, SUNY Distinguished Professor and Chair of Pathology and Anatomical Sciences at the Jacobs School of Medicine and Biomedical Sciences at UB, will use AdiPress to...”—"FormaPath announces clinical research and development collaboration with University at Buffalo Center for Advanced Technology", WIVB, January 2024

“"The uses that we can bring to these very precious gifts have really escalated," said John Tomaszewski, chief of Buffalo's pathology and anatomical sciences department.”—"Body donations on the rise at US medical schools", The News-Herald, August 2016

“"The uses that we can bring to these very precious gifts have really escalated," said John Tomaszewski, chief of Buffalo s pathology and anatomical sciences department.”—"Body donations on the rise at U.S. medical schools", South Florida Sun-Sentinel, August 2016

Noteworthy Medicare Patient Procedures Performed by Dr. John E. Tomaszewski, MD, MASCP in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Affordability:

immunohistochemistry test

lab tests

special stains

In 2023, Dr. John E. Tomaszewski, MD, MASCP had a list price for immunohistochemistry (IHC) test, lab tests, and special stains that was lower than the list prices billed to Medicare by 95% of providers in related specialties within New York. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John E. Tomaszewski, MD, MASCP treated as an immunopathologist in Buffalo, NY during 2012 were lab tests.

Volume of procedures performed by Dr. John E. Tomaszewski, MD, MASCP for Medicare patients.

lab tests	103

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John E. Tomaszewski, MD, MASCP treated as an immunopathologist in Buffalo, NY during 2013 were lab tests.

Volume of procedures performed by Dr. John E. Tomaszewski, MD, MASCP for Medicare patients.

lab tests	135

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP.

**Gender**
Male	19
Female	13

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	19

Conditions of Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP in 2013

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	59
Depression	0
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	53
Chronic Obstructive Pulmonary Disease	0
Diabetes	66
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John E. Tomaszewski, MD, MASCP treated as an immunopathologist in Buffalo, NY during 2014 were lab tests.

Volume of procedures performed by Dr. John E. Tomaszewski, MD, MASCP for Medicare patients.

lab tests	66

Conditions of Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP in 2014

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John E. Tomaszewski, MD, MASCP treated as an immunopathologist in Buffalo, NY during 2015 were lab tests.

Volume of procedures performed by Dr. John E. Tomaszewski, MD, MASCP for Medicare patients.

lab tests	115

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP.

**Gender**
Male	38
Female	36

**Ethnicity**
Non-Hispanic White	40
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	52

Conditions of Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP in 2015

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	51
Depression	30
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	49
Chronic Obstructive Pulmonary Disease	0
Diabetes	57
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John E. Tomaszewski, MD, MASCP treated as an immunopathologist in Buffalo, NY during 2019 were lab tests.

Volume of procedures performed by Dr. John E. Tomaszewski, MD, MASCP for Medicare patients.

lab tests	58

Conditions of Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP in 2019

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	75
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2019

Volume of procedures performed by Dr. John E. Tomaszewski, MD, MASCP for Medicare patients.

The highest averages for the top procedures that Dr. John E. Tomaszewski, MD, MASCP treated as an immunopathologist in Buffalo, NY were lab tests.

lab tests	95

Average Medicare Patient Data From 2012 - 2019

Information about Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP.

**Gender**
Male	11
Female	9

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	10
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	0
85 and over	0
Less than 65	14
65 to 74	0

Average of Total of Conditions of Medicare patients treated by Dr. John E. Tomaszewski, MD, MASCP From 2012 - 2019

The highest averages of the most common conditions of Medicare patients that Dr. John E. Tomaszewski, MD, MASCP treated were chronic kidney disease, high cholesterol, hypertension and diabetes.

Hypertension	60
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	22
Depression	6
Chronic Kidney Disease	60
Asthma	0
Osteoporosis	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	0
Diabetes	39
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

Dr. John E. Tomaszewski, MD, MASCP graduated from University of Pennsylvania School of Medicine. He completed residency at Hospital of the University of Pennsylvania. He is certified by the Certification, American Board of Pathology, Anatomic and Clinical Pathology and has a state license in Pennsylvania.

Medical School: University of Pennsylvania School of Medicine

Residency: Hospital of the University of Pennsylvania

Board Certification: Certification, American Board of Pathology, Anatomic and Clinical Pathology

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. John E. Tomaszewski, MD, MASCP is associated with these hospitals and organizations:

University at Buffalo - Jacobs School of Medicine and Biomedical Sciences

Kaleida Health

UBMD Physicians' Group

Kaleida Health Center for Laboratory Medicine

UNIVERSITY AT BUFFALO PATHOLOGISTS INC

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General Payments

These charts describe general payments received by Dr. John E. Tomaszewski, MD, MASCP. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Stryker Corporation	$611 AIM Laparascopes $400	1588 HD 3 Chip Camera $211
Beckman Coulter, Inc.	$122 AU5800 SERIES $13	$108
Ethicon US, LLC	$111 $111
Foundation Medicine, Inc.	$88 FOUNDATIONACT $88
Roche Diagnostics Corporation	$15 RTD - Advanced Staining - instruments-assays $15

**Types of Payments**
Food and Beverage	$475
Travel and Lodging	$472

Biography

Dr. John Tomaszewski is a specialist in immunopathology and surgical pathology in Buffalo, NY and Williamsville, NY. Areas of particular interest for Dr. Tomaszewski include kidney problems. His hospital/clinic affiliations include Kaleida Health and UBMD Physicians' Group. UBMD Physicians' Group reports that Dr. Tomaszewski is closed to new patients at this time. He studied medicine at the University of Pennsylvania School of Medicine. Dr. Tomaszewski trained at Hospital of the University of Pennsylvania for his residency. He has received distinctions including Gold Foundation Champion of Humanistic Care Award; America's Most Honored Doctors; and Dean's Award.