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License & Identifications

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. Kathryn Ratanavanich:

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Specialties & Research

Dr. Kathryn Ratanavanich, DO is board certified in Internal Medicine and Nephrology.

Education & Awards

Dr. Ratanavanich graduated from Western University of Health Sciences, Pomona.


Dr. Ratanavanich has 4 hospital affiliations:

  • Southern Maryland Hosp 
  • Doctor's Community Hospital 


  • English

> > > > Dr. Kathryn Ratanavanich, DO

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Additional Information
Dr. Kathryn Ratanavanich DO is a female Internist, has 9 years of experience and practices in Internal Medicine and Nephrology.
Where does Dr. Kathryn Ratanavanich practice?
Dr. Kathryn Ratanavanich has 2 office locations.
Dr. Kathryn Ratanavanich practices Internal Medicine and Nephrology near Riverdale, MD.
Additional practice locations include: Clinton, MD.
See Riverdale Internists and Riverdale Nephrologists.