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Our Team

Ashley Bassett, MD

Ashley Bassett, MD

Orthopedic Surgery

Shoulder & Knee

Sports Medicine

Christopher Castro, DO

Christopher Castro, DO

Physiatry

Spine (non-operative)

Frank J. Corrigan, MD

Frank J. Corrigan, MD

Orthopedic Surgery

Hand & Wrist

Robert A. DeFalco, Jr., DO

Robert A. DeFalco, Jr., DO

Orthopedic Surgery

Shoulder & Knee

Sports Medicine

Michael S. Gutkin, MD

Michael S. Gutkin, MD

Physiatry

Spine (non-operative)

Stephen Koss, MD

Stephen Koss, MD

Orthopedic Surgery

Shoulder & Knee

Sports Medicine

Michael Markowitz, DO

Michael Markowitz, DO

Orthopedic Surgery

Spine & Neck

Sports Medicine Doctor James Moran

James P. Moran, DO

Orthopedic Surgery

Sports Medicine

Physiatry

Sports Medicine (non-operative)

Behnam Salari, DO

Behnam Salari, DO

Orthopedic Surgery

Spine & Neck

William Sayde, MD

William Sayde, MD

Orthopedic Surgery

Shoulder & Knee

Sports Medicine

Alex H. Shin, DO

Alex H. Shin, DO

Orthopedic Surgery

Hip & Knee Reconstruction

Shoulder & Knee

Paul G. Teja, DO

Paul G. Teja, DO

Orthopedic Surgery

Shoulder & Knee

Sports Medicine

Kevin White, DO

Kevin White, DO

Orthopedic Surgery

Foot & Ankle

Jason J. Wu, DO

Jason J. Wu, DO

Rheumatology

Christian J. Zaino, MD

Christian J. Zaino, MD

Orthopedic Surgery

Hand & Wrist

Kayvon Ameri, PA-C

Kayvon Ameri, PA-C

PA's, APN-C and LPN's

Sarah Anderson, PA-C

Sarah Anderson, PA-C

PA's, APN-C and LPN's

Olga Debrin, PA-C

Olga Debrin, PA-C

PA's, APN-C and LPN's

Aaron Flores

Aaron Flores

PA's, APN-C and LPN's

Michael Gundell, PA-C

Michael Gundell, PA-C

PA's, APN-C and LPN's

Victoria Kummer, APN

Victoria Kummer, APN

PA's, APN-C and LPN's

Jodie Kunkel, PA-C

Jodie Kunkel, PA-C

PA's, APN-C and LPN's

Anna LoConte

Anna LoConte

PA's, APN-C and LPN's

Diane Niestepski, PA-C

Diane Niestepski, PA-C

PA's, APN-C and LPN's

Lindsey Roessler, PA-C

Lindsey Roessler, PA-C

PA's, APN-C and LPN's

Lauren Soroka, PA-C

Lauren Soroka, PA-C

PA's, APN-C and LPN's

Amy Wedderman, LPN

Amy Wedderman, LPN

PA's, APN-C and LPN's

Daniel White

Daniel White

PA's, APN-C and LPN's

Diane Niestepski, PA-C

Diane Niestepski, PA-C

Conditions & Treatment

Locations

Pin

Hackettstown Bilby Rd. Office

Get Directions

P: (908) 684-3005

Pin

Sparta Office

Get Directions

P: (908) 684-3005

Pin

Randolph Office & Urgent Care Center +

Get Directions

P: 908-684-3005

DateRequest an Appointment

Diane Niestepski, PA-C is a board certified physician assistant with The Orthopedic Institute of New Jersey.

Since joining OINJ in 2006, Niestepski plays an intricate role in patient care, working with patients to address their orthopedic conditions.  Whether she’s performing injections, assisting in surgical procedures or catering to in-office visits, Diane ensures that patients have the care, information they need and compassion both in advance and after their surgery.

Education:

  • Bayley Seton Physician Assistant Program from St. John’s University in New York City.
  • Undergraduate Degree from St. John’s University in New York City.

Languages:

Fluent in speaking and reading Polish.