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Dr. Ann Callahan, MD

Dr. Ann Callahan, MD

Surgical Oncology*

Dr. Ann Callahan, MD is a surgical oncologist in Torrance, CA. She is affiliated with medical facilities such as Kaiser Permanente Downey Medical Center and Abbott Northwestern Hospital.

Practice

23451 Madison St Ste 340 Torrance, CA 90505

Make an Appointment

(310) 373-6864

Hospital Highlight

Dr. Callahan is affiliated with Abbott Northwestern Hospital Minneapolis, a highly rated hospital.

At a Glance

  • Areas of Expertise
    Dr. Callahan specializes in the areas of Complex General Surgical Oncology & General Surgery. • See board certifications
  • Practices at Top Hospital
    Surgical Care Excellence Award™ • See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. • See hospitals
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Dr. Callahan's Reviews

Know Before You Go

About Me

biography

Dr. Ann Callahan, MD is a surgical oncologist in Torrance, CA. She is affiliated with medical facilities such as Kaiser Permanente Downey Medical Center and Abbott Northwestern Hospital.

  • Surgical Oncology

  • General Surgery

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of Virginia / Main Campus

    Medical School
American Board of Medical Specialties®
American Board of Surgery®
- 
Complex General Surgical Oncology
- 
General Surgery
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Practice

Unavail23451 Madison St Ste 340 Torrance, CA 90505
1
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 5:00pm
    • Tue: 8:00am - 5:00pm
    • Wed: 8:00am - 5:00pm
    • Thu: 8:00am - 5:00pm
    • Fri: 8:00am - 5:00pm
    • Sat: closed
    • Sun: closed
  • Directions

Practice

Allina Health Surgical Specialists920 E 28th St Ste 460 Minneapolis, MN 55407
2

Practice

Gastrointestinal Diagnostic Ctr2545 Chicago Ave Ste 601 Minneapolis, MN 55404
3
  • Call
  • Fax
  • Hours
    • Mon: 7:00am - 5:00pm
    • Tue: 7:00am - 5:00pm
    • Wed: 7:00am - 5:00pm
    • Thu: 7:00am - 5:00pm
    • Fri: 7:00am - 5:00pm
  • Directions

Affiliated Hospitals

  • Abbott Northwestern Hospital

    800 E 28th St
    Minneapolis, MN 55407
    Recipient of 26
    hospital awards

    Surgical Care Excellence Award™ (2024, 2023)

    Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

    America's 100 Best Hospitals Award™ (2023)

    Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    82%
    Patients said that doctors always listened to them and explained things well

    6% higher than the national average

    View all patient feedback

  • Mercy Hospital

    4050 Coon Rapids Blvd NW
    Coon Rapids, MN 55433
    Recipient of 26
    hospital awards

    Surgical Care Excellence Award™ (2025)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    America’s 50 Best Hospitals for Surgical Excellence Award™ (2024, 2023)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    View all awards

    How patients felt about the care they received at this hospital.

    89%
    Patients said they were given information about recovering at home

    5% higher than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback

  • Kaiser Permanente Downey Medical Center

    9333 Imperial Hwy
    Downey, CA 90242

    How patients felt about the care they received at this hospital.

    84%
    Patients said they were given information about recovering at home
    75%
    Patients said that doctors always listened to them and explained things well

    1% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality