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Thomas C. O'Brien

Attorney Profile

Top Rated Social Security Disability Attorney in Marietta, GA

O'Brien & Feiler
2629 Sandy Plains Road, Suite 102
Marietta, GA 30066
Phone: 770-579-0799
Fax: 770-579-6262
Selected to Super Lawyers: 2020 - 2022
Selected to Rising Stars: 2014
Licensed in Georgia Since: 2004
Practice Areas: Social Security Disability, Health Care, Military/Veterans Law
  • Virtual Appointments
Attorney Profile

Attorney Thomas O’Brien is the president of O'Brien and Feiler Law in Marietta, Georgia. Serving injured and disabled clients throughout the state, Mr. O’Brien provides invaluable counsel and support to those who seek their rightful Social Security Disability benefits and Supplemental Security Income. He also assists with Medicaid eligibility and liability claims resolution for matters such as workers' compensation, MedPay insurance, crime victims' compensation and uninsured motorist coverage.

Over the course of his career, Mr. O’Brien has achieved notable success advocating for his clients before the Social Security Administration and the Veterans Administration, as well as before various federal courts across his region. A recognized leader in Social Security Disability law, Medicaid eligibility and liability claim resolution, he has written extensively and instructed other attorneys, medical administrative teams, physicians and other professionals on these areas of law. He has also been featured on several televised and online news outlets.

Awarded for his exemplary professionalism and outstanding legal abilities, Mr. O’Brien holds an AV Preeminent peer review rating* from Martindale-Hubbell along with numerous other accolades from his peers. He has also received "Superb" client ratings on Avvo as well as many positive testimonials and referrals from those he has served.

A 1996 graduate of the University of Notre Dame with a Bachelor of Business Administration, Mr. O’Brien earned his Master of Business Administration from Fairleigh Dickinson University in 1999. He obtained his Juris Doctor from Georgia State University College of Law in 2004.

Along with practicing before all Georgia state courts and the Georgia Court of Appeals, Mr. O’Brien holds his admission to practice before the U.S. District Court for the Northern and Middle Districts of Georgia and the U.S. Court of Appeals for the 11th Circuit. In addition, he is an accredited attorney with the Veterans Administration and practices before the Court of Appeals for Veterans Claims.

Active in his legal community, Mr. O’Brien is a member of the State Bar of Georgia, the Georgia Association of Healthcare Attorneys and the National Organization of Social Security Claimants' Representatives. He is also a member of the Georgia Hospital Association and he supports his local community through his involvement with various civic and charitable organizations in his area.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Rating™ fall into two categories – legal ability and general ethical standards.

Practice Areas
  • 70%Social Security Disability
  • 20%Health Care
  • 10%Military/Veterans Law
Focus Areas

Health & Health Care Law, Social Security


3 Years Super Lawyers
1 Years Rising Stars
  • Super Lawyers: 2020 - 2022
  • Rising Stars: 2014

About Thomas C. O'Brien

First Admitted: 2004, Georgia

Professional Webpage:

Bar/Professional Activity

  • Accredited Attorney, Veterans Administration
  • Court of Appeals for Veterans Claims
  • U.S. District Court, Middle District of Georgia
  • U.S. District Court, Northern District of Georgia
  • U.S. Court of Appeals, 11th Circuit
  • Georgia Court of Appeals
  • State Bar of Georgia
  • Member of Georgia Association of Healthcare Attorneys, 2005
  • Member of NOSSCR, 2005

Educational Background

  • Fairleigh Dickinson University - MBA in Finance, 1999
  • University of Notre Dame - BBA in Finance and Business Economics, 1996

Scholarly Lectures/Writings

  • This is Part 1 of a 2 part series that discusses the increasingly complex efforts of insurers to manage their exposure to changes in hospital chargemasters. What used to be a fairly anonymous line item in a compensation schedule is now two or three pages of protective language that covers everything from allowable increases to adjustment formulas and take-back provisions. While creating adequate explanations of a complex contractual issue is laudable, many of the techniques and provisions contained in such language are mathematically misunderstood and can be slanted in favor of the insurer. With most managed care contracts containing multiple items that are paid as a percentage of billed charges (stop-loss, implants, outpatient default are some common entries), it is now more important than ever that hospitals understand the impact of such language, as well as the perspective from which managed care companies are approaching this important issue., Author, Negotiating Charge Master Protective Language with Managed Care Companies, Georgia HFMA Summer Scroll, Georgia HFMA, 2007
  • An exploration of state and federal programs currently in place to assist individuals without insurance or the means to privately insure., Author, Insuring Georgia’s Uninsured Population with the Tools Available Today, Georgia HFMA Scroll, Georgia HFMA, 2010
  • An Introduction to the Georgia Provider Lien Law, Author, An Introduction to the Georgia Provider Lien Law, GSASC - Spring Gazette, Georgia Ambulatory Service Centers, 2008
  • An exploration of Institutional Sources of Payment for Out-of-Network and Self-Pay Patients, Author, Institutional Sources of Payment for Out-of-Network and Self-Pay Patients, GSASC Spring Gazette, Georgia Ambulatory Service Centers, 2007
  • As the population ages and disability awareness rises, social security touches our cases every day. How does someone qualify? What is the process? How are SSI, SSDI & SSRI different? How do things like alimony, child support, or working affect them? Join Social Security Attorney Thomas O'Brien for a no-experience needed intro. 1 hr CLE credit., Speaker, Introduction to Social Security Cases, Gwinnett Pro Bono Project / Atlanta Legal Aid, 2017
  • The purpose of this webinar is to provide a look at a different way of considering Medicaid eligibility. Viewer will have the opportunity to compare and contrast traditional eligibility efforts with in-sourced efforts, and will learn about the interplay between SSI/Disability and Medicaid eligibility. The Law Firm of O’Brien & Feiler (OBF) are Medicaid Eligibility and Disability experts who work with hospitals and their patients to assist with the Medicaid application process. Patients will often only qualify for Medicaid when they obtain benefits through Social Security. As a law firm that specializes in Disability and Medicaid benefits, our attorneys provide patient representation at every level of application and appeal in the SSI/Disability process. The OBF team keeps the application for Medicaid current through the course of the adjudication period. Once the case is resolved and the patient is qualified for Medicaid, the healthcare provider receives the patient’s Medicaid ID number and the dates of coverage for billing. All Medicaid Eligibility solutions are custom designed to best fit the strategic goals of the providers OBF serves. Please contact Thomas O’Brien at 1-800-486-7614 x 108 or Thomas, Author / Presenter, Medicaid Eligibility, A New Look at Hospital In-Sourcing, Hometown Health, Hospital Patient Financial Services, 2018

Special Licenses/Certifications

  • VA Accreditation, Admitted - U.S. Court of Appeals for Veterans Claims, 2010

Pro bono/Community Service

  • Health Advisory Council, MS Society of Georgia, 2015
  • City of Dunwoody Planning Commission, 2016-Present
  • City of Dunwoody Comprehensive 5-Year Plan Update Sounding Board, 2015
  • National Organization of Social Security Claimants Representatives
  • Member of the City of Dunwoody Planning Commission since 2016., 2018
  • Hometown Health
  • Volunteer of Health Advisory Council for MS Society of Georgia, 2016
  • President, Dunwoody North Civic Association, 2018
  • City of Dunwoody Comprehensive Plan Five Year Update - Sounding Board  , 2015


  • Martindale-Hubbell Peer Review Rating of AV earned in 2015., AV Peer Review Rated, Martindale-Hubbell, 2015
  • Superlawyers Rising Star, 2014
  • Avvo 10/10 Top Attorney, 2014-Present
  • The Pro Bono Resource Center of the State Bar of Georgia salutes attorneys who demonstrated their commitment to equal access to justice by volunteering their time to represent low-income Georgians in civil pro bono programs during 2018.{%22issue_id%22:593363,%22page%22:68}, Pro-Bono All Star, State Bar of Georgia - Pro Bono Resource Center, 2019
  • National Honor Society Inductee, Financial Management Association International , 1999
  • An award earned for superior academic performance in the MBA program at Fairleigh Dickinson University, Inductee, International Honor Society in Economics, Omicron Delta Epsilon, 1999


  • Purchase of the remaining shares from law partner at Feiler & Associates to effect 100% ownership of the firm, which was subsequently renamed O'Brien & Feiler., 2016

Other Outstanding Achievements

  • AV Pre-Eminent Martindale-Hubbell Peer Review Rating, Client Champion Award, and Judiciary Award., 2018


  • A fully favorable grant of multiple years of retroactive Title II and Title XVI Disability/SSI benefits, as well as forward looking benefits payable to a client who was a younger individual with chronic pain., 2018
  • A fully favorable grant of Title II and Title XVI benefits payable back to 2016 and forward as a result of chronic neck, shoulder, and heart conditions., 2018

Industry Groups

  • Hospitals
  • Medical Groups
  • Physicians
  • Surgical Centers
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Office Location for Thomas C. O'Brien

2629 Sandy Plains Road
Suite 102
Marietta, GA 30066

Phone: 770-579-0799

Fax: 770-579-6262

Last Updated: 5/15/2022

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