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Cornerstone Medical Management

A Message From the CEO

Cornerstone LLC is a physician owned and physician controlled management and billing service. from startup, credentialing, human resources to daily operations we are here for you. Let us help you manage the business of medicine and let you concentrate on your practice and patients.

About Us

Cornerstone Medical  Management, LLC is owned by physicians for the purpose of providing:

  • Medical billing

  • Credentialing

  • Accounting

  • Accounts payable processing

  • Financial reporting

  • Human resources

  • Payroll services

  • OSHA training and compliance

  • HIPAA training and compliance

  • Medical records release services

  • Consultation

  • Chronic Care Management

  • Quality Improvement

to Cornerstone Medical Associates physician owners as well as contracting physician practices. Consolidating administrative services of a physician practice to be performed by a group of well trained and experienced individuals eliminates the need for individual practices to outsource and/or employ qualified personnel to perform these necessary functions. Contracting physicians benefit from “sharing” the cost of experienced professionals with other practices and allows the physician provider to spend time in patient care and less time in administrative concerns.

Contact Susan Sanders, Cornerstone Medical Management’s Chief Executive Officer about opportunities available to you as a member of Cornerstone Medical Associates, LLC or as a contracted physician practice to benefit from the services of Cornerstone Medical Management, LLC.

Chief Executive Officer – Susan M. Sanders, CPA

Chief Operations Officer – Debbie Alverson, CPC, CCP

Human Resources Director – Tara Mixon, SPHR, SHRM-SCP

OSHA and HIPAA Compliance – Tara Mixon, SPHR, SHRM-SCP

Credentialing – Brenda Bozard, CPC, CCP

Location: 300 Margie Drive, Warner Robins, GA 31088

Telephone: 478-751-2580



Staff Management



Cornerstone Medical Management, LLC bills for multiple specialties.  We offer a variety of services including scheduling and practice management systems in physician’s offices, hardware, software, complete IT support and remote charge entry.

Management Systems

Billing & Collections

  • Electronic Billing

  • Electronic Payment Posting

  • Follow up to 120 days from patient responsibility

  • Secondary insurance billing

  • Automatic follow-up on denials

  • Annual CPT/ICD-9 coding updates in billing system

  • Patient scheduling

  • Billing reports

  • Employee training

  • Coding review for physicians

  • Customized superbill updated annually

  • Patient statements

  • Collection letters

  • Collection services.

  • Physician coding patterns (annually)

Our Staff


Susan received her Bachelor of Business Administration degree with a major in Accounting from Georgia Southern College in 1980 and her CPA certificate in 1984. She lived in Statesboro, Georgia for 27 years working in the public accounting firm Reddick, Riggs, MacLachlan and Hunter in which she was a partner. Susan left Statesboro in 1998 when she moved to Warner Robins and became the Chief Financial Officer of Cornerstone Medical Associates in 2004 and Chief Executive Officer in 2005. Susan’s 24 year experience in public accounting is well utilized in Cornerstone Medical Associate’s multi-specialty group of physicians and Cornerstone Medical Management’s medical management company.


Debbie is the Chief Operation Officer for Cornerstone Medical Associates and Cornerstone Medical Management. She is a Certified Professional Coder, Certified Compliance Professional and has a Georgia Insurance License in Health & Life. She is our computer software liaison with our Electronic Healthcare vendor and is responsible for software system administration. She manages our Central Business Office and ensures office locations follow billing, coding and front office procedural policies for Cornerstone Medical Associates. Presently Electronic Health Records are being implemented in some of the locations and she is involved with this cutting-edge technology.

Cornerstone Medical Management out sources billing and management services. Debbie oversees these services to billing clients and assures appropriate coding and billing regulations are implemented. She has over thirty years experience in the medical field and finds it both a challenging and rewarding career. She was Cornerstone Medical Management’s first employee in November of 1998 and has seen a tremendous growth of services over the past years.


Tara Mixon is the Director of Human Resources and also serves as Administrative Assistant to the Chief Executive Officer. She is certified as a Senior Professional in Human Resources and as a Society of Human Resources Management Senior Certified Professional. Tara has over twenty-eight years’ experience in the healthcare field and has been a member of the Cornerstone family for twenty years. Tara has served as the Director of Human Resources since 2005, where she is responsible for staffing, payroll processing and benefits administration for each of the Cornerstone sites. She also provides support to the physicians and staff of Cornerstone’s practices through OSHA compliance and safety, Drug Free Workplace, on-site safety training, employee health, HIPAA and Compliance.


Brenda is a Certified Professional Coder and Certified Compliance Professional.  She has over twenty years experience in the medical field and has been with Cornerstone Medical Management for nine years.  She performs chart audits to ensure proper coding and charge capture.  Brenda takes care of credentialing issues, assists with coding and billing training at the Central Business Office and front-office staff at the Cornerstone Medical Associate locations.  Brenda assists with Cornerstone Medical Management billing and management issues.

Contact Us


Please note that resumes are not accepted on this website at this time. Patients will need to contact the practice locations directly for medication refills, appointments and cancellations.

Please contact us for more information about how Cornerstone Medical Management can benefit your practice.