Dr. Karen Ratner, MD

Internal Medicine  |  
Female  |  
Age 71
Insurances AcceptedSave
Dr. Karen Ratner, MD
Dr. Karen Ratner, MD is an internal medicine doctor who practices in Littleton, CO. She is 71 years old and has been practicing for 44 years. Dr. Ratner is affiliated with Littleton Adventist Hospital.

7750 S Broadway Ste 100

Littleton, CO 80122

Contact Information
Dr. Karen Ratner, MD

Dr. Karen Ratner, MD

Accepted insurance

  • Aetna
  • Anthem Blue Cross Blue Shield
  • Cigna
  • MultiPlan

*Please verify this information when scheduling an appointment.

Learn about Dr. Ratner

Care Philosophy

Dr. Ratner is passionate about internal medicine because it affords her the opportunity to forge strong bonds with her patients over time. When you visit her, she takes the time to listen carefully and to understand you and your health history in-depth. This knowledge helps her create a personal treatment plan tailored to your exact needs.
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Dr. Ratner's Experience

Dr. Ratner's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Internal Medicine
  • Board certified in Critical Care Medicine, Internal Medicine and Medical Oncology
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Internal Medicine
  • Critical Care Medicine

Board Certifications

  • Critical Care Medicine
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
  • Medical Oncology
    Accredited by: American Board of Internal Medicine*

Background Check

0 Malpractice Claims

No malpractice history found for Colorado.

0 Sanctions

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

0 Board Actions

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


  • Univ Of Ca
    Medical School | Graduated 1973
  • U Nm
    Internship Hospital | Completed
  • Colo
    Residency Hospital | Completed
  • U Colo Sch Med
    Residency Hospital | Completed
  • U New Mexico
    Residency Hospital | Completed
  • University Of Colorado
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Ratner has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

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

Dr. Ratner's Reviews

Likelihood of recommending Dr. Ratner to family and friends
based on 14 total reviews (2 with comments)
Dr. Ratner's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Comments (2)
Denver, CO |
I have been a patient of hers for 10 years. When my insurance changed her office was going to work with me for the bill since the office thought they took my insurance. Instead of woring with me they sent my bill to collections.
in Denver Colorado |
Bedside manner is poor does not listen to the patient concerns, prescribes wrong dose ages of medication without medical to support condition. Comes across as a know it all and does not demonstrate professionalism. Will never refer anyone to her.
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Visit Dr. Ratner

Now Accepting New Patients
Dr. Ratner accepts 4 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
    Whole Health Colorado Front Range
  • Anthem Blue Cross Blue Shield
    Anthem Blue Cross Blue Shield PPO
  • Cigna
    Cigna HMO
    Cigna PPO
    Open Access Plus
  • MultiPlan
    MultiPlan PPO

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Ratner has admitting privileges

Littleton Adventist Hospital
7700 S Broadway
Littleton, CO 80122
View Hospital Profile