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Dr. Joshua S. Tierney

Hepatopancreatobiliary (HPB) Surgery, Robotic Surgery, and Interventional Endoscopy/ERCP

Dr. Joshua Tierney is a published, award-winning, and fellowship-trained surgeon who treats patients from the Northern Front Range and Eastern Plains of Colorado, Wyoming, and Western Nebraska. He is board-certified in General Surgery and Fellowship-trained in Hepatopancreatobiliary (HPB) Surgery and ERCP.

Conditions We Treat

Medical Services
Dr. Tierney is an award-winning, published, and fellowship-trained surgeon who takes pride in patient care.

Top Surgical Procedures

Effective and Reliable Surgical Procedures Within Reach
HPB Surgery and Oncology

HPB Surgery and Oncology

Dr. Joshua S Tierney’s surgery clinic is committed to helping cancer patients regain their health through the use of Hepatopancreatobiliary (HPB) and oncology Surgery.  Dr. Tierney is a reputable surgeon with hundreds of successfully treated patients suffering from pancreatic and liver cancer.

ERCP conditions


Dr. Tierney is the only surgeon in Northern Colorado who performs ERCP. He is one of only a few physicians in the region who completed advanced fellowship training in ERCP.

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Robotic Surgery

Dr. Joshua S. Tierney is a qualified and experienced surgeon whose surgery clinic is well equipped with state-of-the-art medical equipment for robotic surgery.

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General Surgery

General surgery is a prescribed treatment method in different cases where medication has failed to work or cannot work. Dr. Joshua S. Tierney is a reputable surgeon whose clinic performs hundreds of routine general surgery procedures.

Providing the Best Medical Treatment is Our Utmost Concern.

What Our Patients Say

Your safety is our top priority while providing you with the highest level of care.

In my opinion Dr. Tierney is as professional as a surgeon can be. He answered all my questions that my family and I had before procedures & surgery in a language we could all understand and drew simple diagrams regarding the procedures so we could get a better understanding of what was to happen. He was available 24/7 and visited me frequently while in the hospital. I was kept comfortable and completely pain free while under his care. Not enough space here to express my gratitude to him.

Dec 13, 2017

Ivan Pagel in Greeley, CO

I had a hernia surgery end of September and Dr Tierney was  professional. He explained the whole process and operated the next day. Surgery went very well and I didn’t need any pain killers after 3 days. My wounds are healing nicely. I had a post surgery visit with him and he was very good and efficient.

Nov 11, 2019

Wahid Omar

Dr. Tierney asked about my life. This told me a lot about him. Not only does he treat his patient as a person but he treats the patient as a whole person. Taking into consideration all comorbities. I highly recommend him. He has performed several surgeries on me. Ranging from gallbladder; pancreas to thyroid. He’s very kind professional and thorough.

Nov 15, 2019

Connie Meza

Dr. Tierney literally saved my life, I couldn’t have asked for a better doctor. My case was a very hard and rare case but he pushed on and solved the problem and got my diagnosis of Igg4, a rare autoimmune disease. If it wasn’t for Dr. Tierney I don’t know if I’d be here today, Thank you very much for not giving up!

Dec 07, 2019


Dr Tierney treated my hemorrhoids that had bothered me for decades. He explained well what he saw to be the problem and what to expect, and the result was very good. Take heed of his recommendations in terms of prep and post surgery care. He and his staff were always considerate, compassionate, timely, and very professional. I would not hesitate to send anyone in my family to him and MCR. Thank you, Dr. Tierney.

Jan 07, 2020