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    • Doctor, Physician Assistant Join St. Luke’s Northern Valley Primary Care

Doctor, Physician Assistant Join St. Luke’s Northern Valley Primary Care

Doctor, Physician Assistant Join St. Luke’s Northern Valley Primary Care

St. Luke’s Northern Valley Primary Care has expanded its health care team by adding Tony Ohanian, MD, and Ashleigh Lara Crozier, PA-C. The practice has three offices throughout the Lehigh Valley – in Allentown, Bath and Northampton. 

Ashleigh L Crozier, PA-C 

Ashleigh L Crozier, PA-C


Tony Ohanian, MD 

Tony Ohanian, MD


A graduate of Moravian College and the American University of Antigua College of Medicine in New York City, Dr. Ohanian treats patients of all ages at Northern Valley Primary Care. He was drawn to internal medicine by the opportunity to care for patients in different stages of their lives and meet their unique needs.

“During residency, I found myself enjoying internal medicine as it gave the opportunity to delve into all aspects of medicine,” says Dr. Ohanian, who completed his residency at St. Luke’s. “I became familiar with the care that St. Luke's provides, not only in the outpatient offices, but also as a hospitalist with a firm background in subspecialties, including critical care.”

Dr. Ohanian is licensed in basic life support and advanced cardiac life support. He also holds certifications in HIPAA, OSHA Bloodborne Pathogens and Infection Control.

Crozier is a graduate of Houghton College and Drexel University’s Hahnemann Physician Assistant Program. She is working as part of Northern Valley Primary Care’s medical team to perform history and physical exams, and evaluate and treat patients.

“I am honored to be able to care for people through difficult life situations,” Crozier notes. “My goal is that, in some small way, I can be a support for my patients in their time of need. Being able to work with people on a daily basis and build lasting relationships is the reason I became a physician assistant.”

At Northern Valley Primary Care, Crozier rejoins Stanley Walker, MD, for whom she worked at Northampton Internal Medicine and Geriatrics for nearly a decade. Dr. Walker recently became part of Northern Valley Primary Care, and brings 40 years of experience to the practice. He provides care for patients at Northern Valley Primary Care’s Allentown and Bath locations.

Crozier has a wealth of clinical experience and is licensed in basic life support and advanced cardiac life support. In addition, she is a member of the National Commission on Certification of Physician Assistants.

St. Luke’s Northern Valley Primary Care’s three locations are:

  • 2490 Schoenersville Road in Allentown;
  • 44 W. 21st Street, Suite 101 in Northampton; and
  • 6651 Silver Crest Road, Suite 101 in Bath.

Appointments can be scheduled online or by calling 484-526-7255 (Allentown office), 484-526-7275 (Northampton office) or 484-526-7265 (Bath office). New patients are welcome. 

Media Contact:

Sam Kennedy, Corporate Communications Director, 484-526-4134, samuel.kennedy@sluhn.org

About St. Luke’s

Founded in 1872, St. Luke’s University Health Network (SLUHN) is a non-profit, regional, fully integrated and nationally recognized network providing services at seven hospitals and more than 270 outpatient sites. The network’s service area includes Lehigh, Northampton, Carbon, Schuylkill, Bucks, Montgomery, Berks and Monroe counties in Pennsylvania and in Warren County in New Jersey. Dedicated to advancing health education, St. Luke’s operates the nation’s oldest School of Nursing and 23 graduate medical educational programs and is considered a major teaching hospital, the only one in the region. In partnership with Temple University, St. Luke’s created the region’s first Medical School. Repeatedly, including 2017, St. Luke’s has earned Truven’s 100 Top Major Teaching Hospital designation as well as 50 Top Cardiovascular program in addition to other honors for clinical excellence. St. Luke’s is a multi-year recipient of the Most Wired award recognizing the breadth of St. Luke’s information technology applications such as electronic medical records, telehealth, online scheduling and pricing information. St. Luke’s is also recognized as one of the state’s lowest cost providers in comparison to major teaching hospitals and other health systems.

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