A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Karen Ratner:
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- Currently 1.5 of 4 stars
The overall average patient rating of Dr. Karen Ratner is Satisfactory.
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Specialties & Research
Dr. Karen Ratner, MD is board certified in Internal Medicine and Medical Oncology.
- She has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. Ratner graduated from University of California at San Francisco.
Dr. Ratner has 14 hospital affiliations:
- Centura Health Littleton Adventist Hospital
- Centura Hlth-Porter Adventist Hosp
Accepted Insurance Plans
Dr. Ratner accepts these health insurances in at least one office:
- Rocky Mountain Health Plans - 5 plans
- Humana - 13 plans
- Cigna - 6 plans
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- Additional Information
- Where does Dr. Karen N. Ratner practice?
Dr. Karen Ratner practices Internal Medicine, Medical Oncology, General Practice, and Critical Care Medicine near Golden, CO.
Additional practice locations include: Littleton, CO.
See Golden Internists, Golden Oncologists, Golden General Practitioners, and Golden Obstetricians & Gynecologists.