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Internist, Infectious Disease Specialist (virus, bacteria, parasites)
35 years of experience
Accepting new patients
Video profile
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. Ronald Greenfield:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (5)

The overall average patient rating of Dr. Ronald Greenfield is Good. Dr. Greenfield has been reviewed by 5 patients who have provided 5 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 2.3
Promptness 2.8
Courteous Staff 2.8
Accurate Diagnosis 3.2
Bedside Manner 2.3
Spends Time with Me 3.2
Follows Up After Visit 2.8

Specialties & Research

Dr. Ronald Greenfield, MD is board certified in Internal Medicine and Infectious Disease.

  • He has special expertise in 8 areas:
  • AIDS-Related Opportunistic Infections
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Anthrax
  • HIV Infections
  • Hepatitis C
  • Smallpox
  • Virus Diseases
  • Yeast Infection (Candidiasis)

Education & Awards

Dr. Greenfield graduated from Upstate Medical University Physical Medicine and Rehabilitation, Syracuse. He has 1 awards.

One of America's Leading Experts on:
Yeast Infection (Candidiasis)


Dr. Greenfield has 1 hospital affiliations:

  • OU Medical Center 

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Additional Information
Dr. Ronald Alan Greenfield MD is a male Internist, has 35 years of experience and practices in Internal Medicine and Infectious Disease.
Where does Dr. Ronald A. Greenfield practice?
Dr. Ronald Greenfield has 2 office locations.
Dr. Ronald Greenfield practices Internal Medicine and Infectious Disease near Oklahoma City, OK.
See Oklahoma City Internists and Oklahoma City Infectious Disease Doctors.