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Barnabas Health Medical Group Welcomes Nurse Practitioner to Associates in Internal Medicine
Barnabas Health Medical Group Welcomes Nurse Practitioner to Associates in Internal Medicine.

Barnabas Health Medical Group (BHMG) recently announced Kimberly R. Leinker, MSN, RN, FNP-C, a certified family nurse practitioner, has joined Associates in Internal Medicine, a practice led by Dr. Carl Postighone and Dr. Martin Pontecorvo, in Stirling, N.J. The practice is affiliated with Saint Barnabas Medical Center.
As a family nurse practitioner, Leinker provides a full range of services to diagnose and treat patients of all ages, including performing physical examinations, administering immunizations, writing prescriptions and performing various procedures.
“I believe in creating a comfortable health care environment by utilizing a patient-centered approach to care,” said Leinker. “It’s important for me to be able to spend time with each patient to develop a comprehensive personalized treatment plan, as well as build lasting relationships.”
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With multiple locations, Associates in Internal Medicine provides easy access to a variety of health services, including immunizations, annual physicals including CDL physicals, routine check-ups, acute care and sick visits, preventive health, and pre-operative evaluation.
Prior to joining Associates in Internal Medicine, Leinker earned her bachelor’s degree in nursing from the University of Scranton in Scranton, Pa. and a master’s degree in nursing from Fairleigh Dickinson University in Teaneck, N.J. A member of the American Academy of Nurse Practitioners, she also holds certifications in both basic and advanced cardiac life support, as well as pediatric advanced life support and has completed a trauma nursing course.
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Associates in Internal Medicine offers convenient hours at both of its locations in Florham Park, located at 248 Columbia Turnpike and in Stirling, located at 1072 Valley Road. The Florham Park office is open Monday through Friday from 8 a.m. to 5 p.m. and Saturdays from 9 a.m. to 3 p.m. The Stirling office is accessible Monday through Friday from 8 a.m. to 7 p.m. and Saturdays from 9 a.m. to 3 p.m.
For more information or to schedule an appointment with Associates in Internal Medicine, please call the Stirling office at 908.604.8464 or the Florham Park office at 973.514.1767, or visit BarnabasHealthMedicalGroup.org. Barnabas Health Medical Group accepts most major insurances.
About the Barnabas Health Medical Group
Barnabas Health Medical Group is a multispecialty group practice comprised of highly trained and experienced world class primary and specialty care physicians. Barnabas Health Medical Group physicians provide compassionate and innovative cutting-edge care for people at every stage of life at easily accessible facilities conveniently located throughout New Jersey. Backed by the vast continuum of resources of Barnabas Health, the largest not-for-profit integrated health care delivery system in New Jersey and one of the largest in the nation, our dedicated physicians and expertly trained supporting staff continuously strive for clinical excellence. For more information, visit www.BarnabasHealthMedicalGroup.org.
About Barnabas Health
Barnabas Health is the largest not-for-profit integrated health care delivery system in New Jersey and one of the largest in the region, with more than two million patient visits and delivery of more than 20,000 babies annually. The system includes seven acute care hospitals, two children’s hospitals, a trauma center, a freestanding behavioral health center, ambulatory care centers, geriatric centers, the state’s largest behavioral health network, comprehensive home care and hospice programs, retail pharmacy services, a medical group, multi-site imaging centers and four accountable care organizations. As the second-largest private employer in New Jersey, Barnabas Health includes more than 20,000 employees and over 5,000 physicians – or one-fifth of the actively practicing physicians in New Jersey. For more information, visit www.BarnabasHealth.org.