Dr. Mark Vierra, MD


Surgical Oncology | Male

Monterey County Surgical Assocs 2 Upper Ragsdale Dr Ste B230 Monterey, CA 93940 Get Directions
Dr. Mark Vierra, MD
Dr. Mark Vierra, MD is a surgical oncology doctor who practices in Monterey, CA. He is 58 years old and has been practicing for 32 years. Dr. Vierra is affiliated with Community Hospital of the Monterey Peninsula.

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Dr. Vierra's Experience

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Conditions Treated

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Visiting Dr. Vierra

Dr. Vierra accepts 11 insurance carriers

Dr. Vierra is now accepting new patients

Affiliated Hospitals

Hospital Quality
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Dr. Vierra's Reviews

Likelihood of recommending Dr. Vierra to family and friends
based on 30 total reviews (6 with comments)
Dr. Vierra's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (6)
in Monterey, CA |
I wish I could say how grateful I am to Dr Vierra for performing a life saving surgery on my best friend. I am not because the Dr refused, instead prescribing the misnamed “comfort care” with the only cogent reason for not saving her being she was too backed up for his tastes. Compassion care is high dose morphine, which the hospital had already determined my friend did not tolerate, intended to make death more comfortable, it did not, and this was for an injury that occured 70 years prior.
in Salinas, CA |
Dr. Vierra did my gastric sleeve surgery and gall bladder removal in June 2015 and during the surgery, plus pre- and post-op, I received excellent care. The surgery was more difficult than he expected, but he persisted and removed my gall bladder (which was full of stones and scar tissue), and my pain level immediately decreased. My weight loss has improved my quality of life! Dr. Vierra is very thorough, skilled and caring. His entire staff is great, too, and follow-up care is superb.
in Salinas, CA |
I have been going to Dr Vierra since April He is very attentive Very Professional Much better than the Bariatric Staff at Natividad who think they are better and above anyone. Looking forward to him doing my surgery He's Awesome
in Monterey, California |
Dr. Vierra saved my life. I had complications from lapiscropic colon cancer surgery didn't show up in the C scan until I was in critical condition with sepsis. Dr.Vierra preformed a six hour abdominal surgery knowing that it would take a miracle for me to survive. Dr. Vierra was there for me and my family every minute. Dr.Vierra is an amazing doctor AND an amazing human being. It's a little over a year since the surgery and I am doing GREAT! 10/06/2016
in Salinas, CA |
Dr. Vierra is professional, competent, knowledgeable, and compassionate. He was very thorough in explaining my condition. I will definitely continue to see him as needed and would highly recommend him to friends and family. He takes his patients seriously and is open to answer questions and address concerns.
Seaside |
When you think of the sterotype of a doctor who thinks he's God and is above his patients, this exactly fits this man. I would rather be in pain for the rest of my life than have to deal with this MAN again.
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Dr. Vierra's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Surgical Oncology
  •  Board certified in General Surgery
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Vierra has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for California.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Vierra's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • General Surgery

Conditions Treated

  • All Lymphoma
  • Anal Disorders
  • Anal and Rectal Cancer
  • Anemia
  • Autoimmune Diseases
  • Bile Duct Cancer
  • Biliary Cancer
  • Bladder Cancer
  • Bleeding Disorders
  • Blood Disorders
  • Bone Disorders
  • Brain Disorders
  • Breast Cancer
  • Breast Diseases
  • Cancer
  • Chronic Myeloid Leukemia (CML)
  • Coagulation Disorders (incl. Hemophilia)
  • Colorectal Cancer
  • Diverticulitis
  • Esophageal Cancer
  • Esophageal Diseases
  • Gallbladder Cancer
  • Gallbladder and Biliary Tract Cancer
  • Gastroenterologic Cancer (Colon, Stomach, Esophageal, Liver)
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Gynecologic Cancer
  • Head and Neck Cancer
  • Hypercoagulable State
  • Immune Thrombocytopenic Purpura (ITP)
  • Kidney Cancer
  • Leukocytosis
  • Liver Cancer
  • Lung Cancer
  • Melanoma
  • Myeloma
  • Myeloproliferative Disorders
  • Neuroendocrine Tumors
  • Neutropenia
  • Non-Hodgkin's Lymphoma
  • Obesity
  • Ovarian Cancer
  • Pancreatic Cancer
  • Pancytopenia
  • Polycythemia Rubra Vera
  • Pregnancy-Related Disorders
  • Primary Hypercoagulable State (incl. Factor V Leiden Disease)
  • Prostate Cancer
  • Pulmonary Disease
  • Qualitative Platelet Defects (incl. Glanzmann's Thrombasthenia)
  • Secondary Malignancies
  • Skin Cancer
  • Small Intestine Cancer
  • Soft Tissue Sarcoma
  • Stomach Cancer
  • Stomach Diseases
  • Stomach and Small Intestine Cancer
  • Thalassemia
  • Urinary Disorders
  • Uterine Cancer
  • Uterine Diseases
  • Vascular Disease


  • Medical School
    Harvard Medical School

    Graduated in 1985

Languages Spoken

  • English
  • Spanish

Memberships &
Professional Affiliations

Dr. Vierra does not have any memberships or affiliations listed. If you are Dr. Vierra and would like to add memberships or affiliations, please update your free profile.


  • Surgical Oncology
  • Bariatric Surgery
  • General Surgery

Procedures Performed

  • Bariatric Surgery (Weight Loss Surgery)
  • Bone Marrow Biopsy
  • Esophageal Surgery
  • Esophagomyotomy
  • Gastrectomy
  • Gastric Bypass Surgery, Laparoscopic
  • Gastric Restrictive With Partial Gastrectomy or Jejunojejunostomy
  • Gastrotomy
  • Laparoscopic Adrenal Surgery
  • Laparoscopic Anti-Reflux Surgery
  • Laparoscopic Bariatric Surgery
  • Laparoscopic Colectomy
  • Laparoscopic Nephrectomy
  • Laparoscopic Rectal Surgery
  • Laparoscopic Splenectomy
  • Laparoscopic Surgical Procedure
  • Laparotomy
  • Open Gastric Restrictive Procedure
  • Pancreatic Surgery
  • Sleeve Gastrectomy
  • Sleeve Gastrectomy, Laparoscopic
  • Stomach Surgery
  • Thoracentesis
  • Whipple Procedure