Accepting new patients

Daniel O. Herzig, M.D., M.B.A., FACS, FASCRS (he/him)

Accepting new patients

  • Professor of Surgery
  • Professor of Surgery, Division of Gastrointestinal and General Surgery, School of Medicine

Specialty

  • Cancer
  • Digestive Health
  • Surgery

Clinical focus

  • Anal Cancer
  • Colorectal Cancer
  • Digestive Surgery
  • Gastrointestinal Cancer
  • General Surgery

Locations and contact

I see patients at
Modern building on a clear day with the tram in the background.
Center for Health & Healing, Building 2
503-494-8311
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About me

I am a surgeon who specializes in treating:

Colon, rectal and anal cancer are potentially curable for many, if not most, people. I provide custom care for each patient. Whether I’m seeing you for your first visit or a second opinion, I will learn what is important to you and make sure you understand your cancer and all treatment options.

For other conditions, I treat each patient individually, working with you to find the best treatment for your symptoms. We can often do this with office treatments and without surgery.

I joined OHSU in 2005. I am part of the OHSU Digestive Health Center and the OHSU Knight Cancer Institute.

My research interests include:

  • Treatment of rectal cancer without surgery
  • Hereditary colorectal cancer syndromes such as Lynch syndrome and familial adenomatous polyposis (FAP)

I started the state’s first colorectal cancer registry and have worked with other researchers at OHSU to continue our leadership in colorectal cancer research.

I am committed to providing top-quality individual care to each patient. Because of this, I’ve been recognized as one of “Portland’s Top Doctors" and one of "America’s Top Surgeons.”

Languages spoken

  • English

Education and training

  • Degrees

    • M.D., 1999, Vanderbilt University School of Medicine
    • M.B.A., 2020, Oregon Health & Science University/Portland State University

  • Residency

    • General Surgery, Brown University/Rhode Island Hospital, Providence, RI  1999-2004

  • Fellowship

    • Colorectal Surgery, University of Texas Health Science Center at Houston, Houston, TX, 2004-2005

  • Certifications

    • American Board of Surgery, 2005
    • Colon and Rectal Surgery, 2006

Memberships and associations:

  • Fellow, American College of Surgeons
Read faculty profile

Insurance

Before scheduling an appointment

  1. Check your network. If you have health insurance,  call your company to find out if the OHSU Health location or provider you plan to visit is part of your network.
  2. Ask what you will pay. Your insurance company can tell you what your costs are likely to be.

If you schedule an appointment and your health insurance does not include OHSU Health, you may have to pay more than if you go to a provider in your insurance network. 

Visit our billing and insurance page for more information.

Ratings and reviews

Overall: 4.9 out of 5 (146 Ratings, 54 Reviews)

The patient ratings score is an average of all responses to the question "How likely would you be to recommend this provider to your family and friends (on a scale of 0 to 10)" on our nationally-recognized NRC patient surveys.

  1. When my friends and family members need Medical attention, I always recommend either OHSU or CMH depending on the type of medical attention needed and the proximity of the prospective patient.

  2. Dr Herzig and all the staff were very friendly and helpful, informative Thank you to all

  3. I can't say enough, good things about the care that I received at the hospital during my surgery. I've never had such good care, upbeat attitude with everyone, always felt safe because of the way they handled things that needed to be taken care of. There was a lot of checking in cross checking before they did things, it's the best hospital I've ever been in.

  4. I continue to be impressed and pleased with Dr Herzig. He lightens the mood around the procedure but asks lots of questions and is concerned not only for my health and comfort but also my insurance coverage, which is appreciated.

  5. My 3rd colonoscopy in the last 2 years with this group. Always great!

  6. Dr. Herzog was personable and professional.

  7. I hope Dr. Herzig will be available for all my procedures.

  8. Dr. Herzig is is fantastic, very knowledgeable and compassionate.

  9. Super helpful, informative and fast! The procedure did not take very long at all.

  10. Dr is knowledgeable, explains things well

  11. I felt a concern, and answered my questions.

  12. Dr. Herzig is the best doctor I've ever had anywhere!! 10 out of 10actually he's a step above all the rest.

  13. I have been seeing Dr. Herzig for several months. I trust his expertise.

  14. Highly professional, informative

  15. Dr. Herzig is the best of the best. He had done my first colonoscopy 10 years ago and I specifically asked to have him do my second one for continuity of care reasons. I trust his expertise, and he is also kind and personable.

  16. First class

  17. So caring and knowledgeable and sensitive to the nature of the problem.

  18. He was efficient and reassuring.

  19. Well, the main thing they serve very well, very respectful, very friendly

  20. Docs nurses and anesthesiologist all very approachable and friendly.

  21. Felt heard, seen and interacted well

  22. I felt safe and well cared for. Well informed. Staff were all courteous. I was covered and warm until I fell asleep.

  23. Informative - asked for input and was able to answer my questions

  24. Dr. Herzig is amazing!

  25. Trusted care. Will be returning for suggested future exams.

  26. Dr. Herzig is the best!

  27. It was great

  28. Everyone always answers my questions and is very helpful

  29. Dr Herzig was wonderful. He cares. His words after the procedure were especially helpful.

  30. The anesthesiologist and CRNA were exceptional. I felt comfortable and safe, I knew I was in good hands. Dr. Herzig was friendly, making sure I had any questions answered. I liked his quiet confidence.