John Pisarkiewicz
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John Pisarkiewicz Email & Phone Number

Principal Consultant at Nathan Associates
Location: Arlington, Virginia, United States 4 work roles 3 schools
3 work emails found @nathaninc.com 5 phones found area 703 and 401 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 3 work emails · 5 phones

Work email j****@nathaninc.com
Direct phone (703) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Principal Consultant
Location
Arlington, Virginia, United States
Company size

Who is John Pisarkiewicz? Overview

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Quick answer

John Pisarkiewicz is listed as Principal Consultant at Nathan Associates, a company with 372 employees, based in Arlington, Virginia, United States. AeroLeads shows a work email signal at nathaninc.com, phone signal with area code 703, 401, and a matched LinkedIn profile for John Pisarkiewicz.

John Pisarkiewicz previously worked as former parishioner at Church Of The Holy Comforter and Adjunct Associate Professor at The George Washington University. John Pisarkiewicz holds Ph.D., Economics, Applied Math, 3.8 Overall from Vanderbilt University.

Company email context

Email format at Nathan Associates

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{first_initial}{last}@nathaninc.com
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AeroLeads found 3 current-domain work email signals for John Pisarkiewicz. Compare company email patterns before reaching out.

Profile bio

About John Pisarkiewicz

Economic consultant serving as an expert in antitrust, class actions, damages and a wide variety of other types of litigation including intellectual property, false advertising, data compensation, valuations and other business disputes, Dr. Pisarkiewicz also has recently performed some pro bono work for the citizens of Fairfax County, VA. In his 30+ years as a consultant, he has testified on numerous occasions before federal and state courts, before arbitration panels and before the Internation Trade Commission. The number of industry markets he has studied number in the hundreds. He has taught, most recently as an Adjunct Associate Professor at The George Washington University, and he has served at the Federal Trade Commision in a variety of positions including Acting Director of the Office of Policy Planning and Evaluation. Specialties: Applied micro economics, industrial organization economics, financial analysis, competitive impact analysis, cost-benefit analysis, statistical analysis and econometric modelling.

Listed skills include Economics, Policy, Intellectual Property, Econometrics, and 33 others.

Current workplace

John Pisarkiewicz's current company

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Nathan Associates
Nathan Associates
Principal Consultant
arlington, virginia, united states
Website
Employees
372
AeroLeads page
4 roles · 52 years

John Pisarkiewicz work experience

A career timeline built from the work history available for this profile.

Principal Consultant

Current

Independent economic consultant in antitrust, class actions, damages, intellectual property, false advertising, data compensation, valuations, statistics and econometric modelling. More than 30 years experience testifying before state and federal courts, arbitration panels and federal agencies.

Jan 2003 - Present

Principal Consultant

Presents expert opinions and conclusions to the courts via reports and oral testimony at deposition and trial. Expertise in the economics of antitrust, class cetrtification, damages, intellectural propery and many other areas where economic input may assist the trier of fact.

1985 - 2014 ~29 yrs

Adjunct Associate Professor

Guest lecturer and full time for one semester teaching health economics in the Dept. of Health Policy, School of Public Health and Health Services, GWU.

1996 - 2005 ~9 yrs
Team & coworkers

Colleagues at Nathan Associates

Other employees you can reach at nathaninc.com. View company contacts for 372 employees →

3 education records

John Pisarkiewicz education

Ph.D., Economics, Applied Math, 3.8 Overall

Vanderbilt University

Activities and Societies: NDEA Fellowship, Teaching assistantship, Ford Foundation Dissertation Grant; Brookings Economic Policy Fellow at.

Ab Cum Laude, Mathematics, 3.49 Overall

St. Louis University

Activities and Societies: Elected to Pi Mu Epsilon, national honorary mathematics fraternity

None Awarded, Mathematics, 3.6 Overall

Spring Hill College

Activities and Societies: co-founder of Gamma Sigma fraternity which later went national with Phi Kappa Tau.

FAQ

Frequently asked questions about John Pisarkiewicz

Quick answers generated from the profile data available on this page.

What company does John Pisarkiewicz work for?

John Pisarkiewicz works for Nathan Associates.

What is John Pisarkiewicz's role at Nathan Associates?

John Pisarkiewicz is listed as Principal Consultant at Nathan Associates.

What is John Pisarkiewicz's email address?

AeroLeads has found 3 work email signals at @nathaninc.com for John Pisarkiewicz at Nathan Associates.

What is John Pisarkiewicz's phone number?

AeroLeads has found 5 phone signal(s) with area code 703, 401 for John Pisarkiewicz at Nathan Associates.

Where is John Pisarkiewicz based?

John Pisarkiewicz is based in Arlington, Virginia, United States while working with Nathan Associates.

What companies has John Pisarkiewicz worked for?

John Pisarkiewicz has worked for Nathan Associates, Church Of The Holy Comforter, and The George Washington University.

Who are John Pisarkiewicz's colleagues at Nathan Associates?

John Pisarkiewicz's colleagues at Nathan Associates include Pieruchi Latino, Jeanine Hubler, Stephen Schneider, Hossam Elfaham, and Mónica Ibarra.

How can I contact John Pisarkiewicz?

You can use AeroLeads to view verified contact signals for John Pisarkiewicz at Nathan Associates, including work email, phone, and LinkedIn data when available.

What schools did John Pisarkiewicz attend?

John Pisarkiewicz holds Ph.D., Economics, Applied Math, 3.8 Overall from Vanderbilt University.

What skills is John Pisarkiewicz known for?

John Pisarkiewicz is listed with skills including Economics, Policy, Intellectual Property, Econometrics, Financial Analysis, Competition Law, Litigation, and Microeconomics.

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