JOHN E TOMASZEWSKI MD
NPI 1417993601
Pathology - Anatomic Pathology in Buffalo, NY

Active since June 22, 2006PECOS EnrolledAccepts Medicare Assignment
96.04/100
CMS Quality Rating
100 HIGH ST, BUFFALO, NY 14203(716) 859-5600 Get Directions Write a Review

NPPES record last updated: October 10, 2011. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About John E Tomaszewski Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN E TOMASZEWSKI MD (NPI 1417993601) is an individual anatomic pathology provider in Buffalo, New York, licensed in Pennsylvania (MD020859) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1977).

NPPES Registry Identity

NPI1417993601
Entity TypeIndividualMale
Primary Taxonomy207ZP0101X
Provider Legal NameJOHN E TOMASZEWSKICredential: MD
Location Address100 HIGH STBuffalo, NY 14203-1126
Mailing Address100 High StBuffalo, NY 14203-1126 · (716) 859-5600
Sole ProprietorNo
Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 1977
Enumeration DateJune 22, 2006
Last NPPES UpdateOctober 10, 2011
NPI 1417993601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPathology · Anatomic PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0101X
License Licensed in PA · MD020859
Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

100 HIGH ST, Buffalo, NY 14203

Other Identifiers 3

Medicaid0011063450002PA
Medicare PIN090980PA
Medicare UPINB35476

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

John E Tomaszewski Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820009509
PECOS Enrollment IDI20120210000301
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Antibody evaluation, each additional single antibody stain procedure 88350
An antibody evaluation involves testing a sample of your body fluid (like blood) to identify specific antibodies. Each additional single antibody stain procedure is a separate test for another specific antibody. This helps in diagnosing various health conditions by understanding your body's immune response.
162 services24 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
83 services22 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
33 services13 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
27 services24 patients
Antibody evaluation, initial single antibody stain procedure 88346
An antibody evaluation, initial single antibody stain procedure is a laboratory test. It's designed to identify specific proteins, or antibodies, in your body. This can help diagnose certain conditions or monitor your immune system's response to treatments. The procedure involves staining a single type of antibody for detection.
25 services22 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
21 services19 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Kaleida Health

Acute Care Hospitals · Buffalo, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330005
Location100 High StreetBuffalo, NY 14210 · Erie County
Emergency services Birthing friendly

Erie County Medical Center

Acute Care Hospitals · Buffalo, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330219
Location462 Grider StreetBuffalo, NY 14215 · Erie County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90.87
Improvement Activities40
Cost74.28

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
100 HIGH ST
BUFFALO, NY 14203
Specialist
100 HIGH ST, RM C421
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Hospitalist
100 HIGH ST
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Emergency Medicine
100 HIGH ST
BUFFALO, NY 14203
Registered Nurse (Registered Nurse First Assistant)
100 HIGH ST
BUFFALO, NY 14203

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Tomaszewski's NPI number?

The NPI number for John Tomaszewski is 1417993601. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Where is John Tomaszewski located?

John Tomaszewski practices at 100 High St, Buffalo, NY 14203. The listed phone number is (716) 859-5600.

What is John Tomaszewski's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.

Is John Tomaszewski enrolled in Medicare?

Yes. John Tomaszewski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is John Tomaszewski affiliated with any hospitals?

According to CMS data, John Tomaszewski is affiliated with Kaleida Health and Erie County Medical Center.

When was this NPI record last updated?

The NPPES record for John Tomaszewski was last updated on October 10, 2011. NPI Profile syncs with the weekly NPPES data releases published by CMS.