Who We Are

The mission of the Hope Clinic is to provide the very highest quality of medical care to those with limited or no access to healthcare, and to treat each patient with the utmost respect and kindness without regard to language, national origin, religion or ability to pay.

Our Story

The Hope Clinic is a Christian non-profit, internal medicine clinic. We provide the highest standard in medical care to the uninsured, underinsured and indigent in Gwinnett County, a suburban area of Metro Atlanta.

The Hope Clinic was founded in 2002 by Dr. William Martin to provide an affordable alternative to the hospital emergency room for the primary care medical needs of the uninsured. The clinic is a vital part of Gwinnett's healthcare safety net and supplies over half of the available charitable primary care capacity in the county. Dr. Martin and the team of providers at the Hope Clinic specialize in internal medicine and chronic care diagnosis.

Due to the need for frequent follow-up visits and maintenance care, chronic care is typically the most expensive in the healthcare industry. The uninsured and underinsured who suffer from chronic conditions like diabetes, cardiovascular disease and metabolic syndrome often fall through the cracks of the medical system, aren't diagnosed or properly treated for their conditions, or frequent the emergency room for medical care. Over 50 percent of uninsured adults are more than twice as likely to delay or foergo needed care compared to the insured because they are worried about high medical bills.

The Hope Clinic offers a compassionate and innovative fee structure – extending reduced fees to the uninsured on a sliding scale based on a patient's household income instead of the actual cost of providing care. We call the difference between these fees and the actual cost of care the Compass Gap. We strive to be seen not just as medical facility, but as a home for all of our patients. Instead of relying solely on the services of volunteers, the Hope Clinic employs full-time physicians and professional staff to provide continuity of care for our patients. We like to build lasting, lifelong relationships with our patients that extend beyond their time of care.

Our Team

Dr. William B Martin - Founder and Medical Director

Dr. Martin has been practicing internal medicine and has been a staff physician with the Gwinnett Hospital System in Gwinnett County for over 40 years. Dr. Martin specializes in identifying and managing the related conditions of high cholesterol, diabetes and cardiovascular disease. He is Board Certified in Clinical Lipidology and was one of six Georgia physicians to achieve "Provider Recognition" status with the American Diabetes Association in 2000. Dr. Martin is a graduate of the Medical College of South Carolina, now the Medical University of South Carolina and was a flight surgeon in Vietnam. He completed his residency and internship in the Emory-VA-Grady Health System.   He was in private practice in Gwinnett for 29 years prior to founding the Hope Clinic in 2002. 

Dr. Daniel M. Greenberg, MD

Dr. Greenberg joined the Hope Clinic as a provider in 2011.   Trained as a physician, surgeon and plastic surgeon,  Dr. Greenberg’s career has included serving patients and the medical community in capacities as general practitioner, plastic surgeon, medical director, and chief resident general surgery. Dr. Greenberg earned his Doctor of Medicine degree at Emory University School of Medicine where he graduated Summa Cum Laude and First in Class. Dr. Greenberg received his Bachelor of Science from Duke University where he also graduated Summa Cum Laude.

Jennie Mathen - NP-C

Jennie Mathem is the Hope Clinic’s Certified Nurse Practitioner and the newest member of the Hope team. Jennie began her career as a cardiac nurse at GMC-Lawrenceville where she learned the value of showing compassion, listening, and working with patients. After four years, Jennie felt called to take a bigger role in the direct care of patients and enrolled in Mercer’s Family Nurse Practitioner Program. While completing her degree, Jennie performed her rotations at the Hope clinic and soon took the step to continue working for Hope Clinic after obtaining her degree. Jennie and her family are active members of Victory Hamilton Mill Church. 

Luke R. Lenahan - Executive Director

  • Pam Martin - Chief Financial Officer
  • Jessica Geller - Chief Development Officer
  • Veronica Lowe - Chief Compliance Officer and Billing Manager
  • Ashley - Front Office Administrator
  • Adrian - Front Office and Billing Representative
  • Mary, LPN - Nurse, Chronic and Acute Care
  • Rosanna, MA - Medical Assistant
  • Sue, LPN - Nurse, Chronic and Acute Care
  • Jennifer - Lab Tech
  • Ansley - Marketing & Development Assistant
  • Helen - Bookkeeping


Risk & Insurance
12 Stone

For more information on how to join our team please contact Jessica Geller at jessicageller@hopeclinicgwinnett.info with your resume or call 404-399-7735.

Get in touch: Contact Us

The Hope Clinic is a non-profit primary care clinic that relies on generous supporters like you.