Jonathan A. Eash, M.D.

Board Certified Anesthesiologist
Interventional Pain Management

New Ascendant Orthopedic Office Location: Plymouth, IN – Now Open!

Plymouth location for Ascendant Orthopedic Alliance now open! Ascendant Orthopedic Alliance newest location opened in early October; to meet the orthopedic needs of residents living…

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Meet Our Newest Physician: Jeffrey Sonntag, D.O.

Click to see Dr. Sonntags provider page.

Meet Our Newest Physician: Adam Cien, D.O.

Click to see Dr. Ciens provider page

Meet Our Newest Physician: Tyler McGregor, D.O.

Click to see Dr. McGregors provider page.

Dr. Kibiloski is a Rockin’ Doc

Associates and colleagues at Beacon Health System nominated Dr. Leonard Kibiloski for the distinction of Rockin’ Doc of the Month for his authentic and compassionate…

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Dr. Ratigan ABC 57 News: Irish Legend

Ascendant Orthopedic Alliance’s very own, Dr. Brian Ratigan, talks about his transition from the football field to the operating room.  A former player for Notre…

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Jeffrey Sonntag, D.O.

Orthopedic Surgeon

Tyler D. McGregor, D.O.

Orthopedic Surgeon

Adam J. Cien, D.O.

Orthopedic Surgeon


Ascendant Orthopedic Alliance was formed by joining the two leading providers serving North Central Indiana and Southwestern Michigan. South Bend Orthopaedics (SBO) and Orthopedic and Sports Medicine Center (OSMC) bring together the current seven office locations in South Bend, Elkhart, Mishawaka, Goshen, LaPorte, Middlebury and Nappanee to form Ascendant Orthopedic Alliance.