Ryan Kretzer, MD

Neurological Surgery

Patient Satisfaction Survey

Overall Satisfaction
4.8 out of 5
102 Ratings

Ryan Kretzer, MDDr. Kretzer is a Neurosurgeon and Partner at Western Neuro.  Dr. Kretzer serves as the Director of Spine Surgery at St. Joseph’s Hospital and Vice Chairman of the Department of Neurosciences at the Carondelet Neurological Institute. He is board certified in Neurosurgery by the ABNS.  Dr. Kretzer completed a Residency in Neurosurgery at the Johns Hopkins Hospital, as well as a Research Fellowship in Spinal Biomechanics at the Orthopaedic Spinal Research Laboratory in Towson, MD under the direction of Bryan Cunningham, PhD.  After graduation, Dr. Kretzer completed a Clinical Fellowship in Complex Spine Surgery at the Johns Hopkins Hospital.  Prior to joining Western Neuro, he served two years as the Neurosurgical Medical Officer at the Center for Devices and Radiological Health (CDRH) of the US Food & Drug Administration (FDA)

Dr. Kretzer is a researcher and inventor, with several U.S. and international patents for spinal devices. He has authored more than 30 peer reviewed publications and seven chapters in medical textbooks. He currently serves as a peer reviewer for the prestigious journal, Spine.He has been awarded with several scholarships, grants and accolades for his research in the treatment of spinal disease.

He has two children and enjoys spending time with his family, cycling and skiing in his spare time.

Areas of Specialization

  • minimally invasive and complex spine surgery
  • degenerative disc disease,
  • spinal stenosis,
  • nerve root compression,
  • adult degenerative deformity
  • spinal oncology

Education & Training

Undergraduate: The Johns Hopkins University
Medical school: M.D. The Johns Hopkins University School of Medicine
Residency: The Johns Hopkins Hospital; Neurosurgery 


  1. Joseph Medical Center (Towson, MD); Spinal Biomechanics Research
  2. Center for Devices and Radiological Health (CDRH), US Food and Drug Administration (FDA) (Silver Spring, MD); FDA Medical Officer, Medical Device Fellowship Program
  3. The Johns Hopkins Hospital (Baltimore, MD); Complex Spine Fellowship, AO Spine North America

Professional Memberships

  • Fellow, American Association of Neurological Surgeons
  • Member, Congress of Neurological Surgeons

Carondelet Neurological Institute - Dr. Ryan M. Kretzer

Ryan Kretzer, MD Profile

In Health - Back to Normal

Dr. Kretzer’s Physician Assistant: Chelsea McNally, PA-C

Patient Testimonial

"First and foremost, words cannot adequately describe the thoughtfulness and care that I received during my experience with the Western Neuro (Neurology & Neurosurgery in Tucson, Arizona).

The very first interaction is at the front appointment desk for Dr. Kretzer. The staff was extremely courteous and professional (on all of my visits). I was then met by my Dr.’s PA (physician assistant), who had gone over my documents (images, x-rays and CT scans with my doctor) and a cursory exam was done. She then got Dr. Ryan Kretzer. We discussed his findings (pro’s and con’s), and courses of action that best suited by issue. Surgery was scheduled.

Now for the person that keeps this train on the track. She is Dr. Kretzer’s MA (medical assistant: Brianna). At the point of scheduled surgery Brianna runs all your scheduling right up until you are admitted (MRI’s, CT scans and X-Rays. She will be your contact for all your needs, regardless of size. She will be with you until you are released from the doctor’s care.

Next, Doctor Ryan Kretzer performed an 8-hour surgery on my back. He listened to all my concerns and explained them on the level a lay person could understand without difficulty. Short story on that he did to me: He removed rods from S-1 to L-4 (installed in 2006) and replaced them from S-1 to T-10 to straighten my spine. I have no pain. I walk with a straight spine (actually a bit taller now).

If you are reading this in his suite, you or whom you are with can feel safe, confident and secure, knowing you are going to receive executive treatment from this point on. Your condition will be explained by Dr. Kretzer, whether it is treatable or not, and he will discuss you options. If you need surgery, follow instructions given to you at spine camp (mandatory). You will meet some of the staff who will be helping you until discharge. LISTEN to everyone from your first appointment until your discharge. I feel extremely fortunate to have found this clinic in my own area and definitely wish you the best regardless of the course you take.

PS: Should you go ahead with surgery, get in shape! You will definitely appreciate it during your convalescence and rehab."

- Fred

Patient Ratings & Comments

The Patient Rating score is an average of all responses to provider related questions on our independently administered Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Provider showed concern
Friendliness/courtesy of CP
CP spoke using clear language
Provider explained things clearly
Provider included you in decisions
Patients' confidence in CP
Likelihood of recommending this provider


Comments are gathered from our Patient Satisfaction Survey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.
Dec 29, 2019
The doctor was best person in the office. He took time to explain conditions/surgeries needed. He gave me confidence to hire him to do surgery. Initially I planned to consult 2 other docs to choose surgeon but I choose him...
Dec 22, 2019
Frank discussion on what were options. Open to me to investigate nonsurgical paths also. Forthright information. Discussed expectations.
Oct 23, 2019
*Dr. Kretzer is outstanding!
Aug 28, 2019
*Dr. Kretzer is immediately likeable and showed sensitivity for my concerns.
Aug 23, 2019
Dr Kretzer is exceptional. He is the first doctor who actually explained and showed me why I need cervical surgery before I had lumbar surgery! After talking with him my husband and I had the knowledge we needed to make our decisions!
Aug 23, 2019
Dr.Kretzer is the best. He fixed my husband 3 years ago
Aug 20, 2019
Doctor very clear, very comfortable to talk to him
Aug 15, 2019
Dr K-- made me feel very good about treatment for my scoliosis problem
Aug 15, 2019
Really liked Dr. knowledge and interested in me
Aug 3, 2019
Friendly professional & listened to my concerns -
Jul 31, 2019
Dr Kretzer could not be any better
Jul 30, 2019
Excellent; reservations concerning surgery wanted 2nd opinion. Much more comfortable w/*Dr. Kretzer due to attitude re: physical therapy before/after surgery & attempting alternatives prior to surgery.

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