Dr. John Ryan, MD

Internal Medicine  |  
Male  |  
Age 66
Insurances AcceptedSave
Dr. John Ryan, MD
Dr. John Ryan attended Downstate Medical School, State University of New York in Brooklyn, graduatingcum laude in 1977. He trained in internal medicine (internship & residency) at Duke University Medical Center in Durham, North Carolina, and was appointed Assistant Chief Resident in his third year. In 1980, following residency training, Dr. Ryan entered the US Army Medical Corps and served as a medical officer in Frankfurt, Germany, NATO Headquarters in Belgium, and Brooke Army Medical Center in San Antonio, Texas, attaining the rank of Major. In 1984, he joined Dr. Glen Davis in the private practice of internal medicine in Longwood & Lake Mary, Florida, and continues to this day. Dr. Ryan has held an active license to practice medicine in the State of Florida since 1984. Dr. Ryan was awarded board certification in Internal Medicine by the American Board of Internal Medicine in 1980, and is participating inMaintenance of Certification to continue competency in internal medicine. He is also an active Member of the American College of Physicians, the Florida Medical Association and the Seminole County Medical Society. Dr. Ryan is on the medical staff of Florida Hospital and Orlando Health. He has served in several medical staff positions in the past 30 years, including Chief of the Department of Medicine, Chief of Medical Staff, Chairman of the Board of South Seminole Hospital in Longwood Florida, and as a member of the Orlando Health Credentials Committee. Awards received include Alpha Omega Alpha Honor Medical Society, and he has been recognized annually since 2002 by Orlando Magazine as a Top Doctor. Dr. Ryan is profiled in US News & World Report Health Care. Dr. Ryan posts medical information and opinion on his Blog, Practical Effects Medicine.

4106 W Lake Mary Blvd Ste 301

Lake Mary, FL 32746

Contact Information
Dr. John Ryan, MD

Dr. John Ryan, MD

Accepted insurance

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Florida
  • Cigna
  • Commercial Insurance Company
  • Coventry Health Care
  • EmblemHealth
  • Golden Rule
  • Humana
  • Mail Handlers Benefit Plan (MHBP)
  • Medical Mutual of Ohio
  • MultiPlan
  • Principal Life
  • UnitedHealthCare

*Please verify this information when scheduling an appointment.

Learn about Dr. Ryan

Care Philosophy

Our practice values the personal and professional relationship we have with our patients. We make efforts to protect their privacy, respect their dignity and fully inform and educate about our findings and recommendations. We are eager to hear from our patients when we have met their needs, and when we can improve.
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Dr. Ryan's Experience

Dr. Ryan'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 Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Internal Medicine

Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Anemia
  • Arthritis
  • Asthma
  • Autoimmune Diseases
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Congestive Heart Failure
  • Diabetes
  • Emphysema
  • Heart Disease
  • High Cholesterol
  • Hyperlipidemia
  • Hypertension
  • Osteoporosis
  • Pulmonary Disease
  • Syncope
  • Vascular Disease


  • Electrocardiogram (EKG)
  • Immunization
  • Physical Examination
  • Urinalysis
  • Vaccination

Background Check

0 Malpractice Claims

No malpractice history found for Florida.

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.


  • Johns Hopkins University
    Undergraduate School | Graduated 1972
  • SUNY Downstate Medical Center College Of Medicine
    Medical School | Graduated 1977
  • Duke University Hospital
    Internship Hospital | Completed 1978
  • Duke University Hospital
    Residency Hospital | Completed 1980

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Ryan has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

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

Dr. Ryan's Reviews

Likelihood of recommending Dr. Ryan to family and friends
based on 6 total reviews (1 with a comment)
Dr. Ryan's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
Patient Comments (1)
in Orlando, FL |
Came highly recommended by someone I trust. I am very happy with his care. He and his staff is very nice and accommodating with visits and prescriptions.
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See our Internal Medicine Specialist at Central Florida Regional Hospital

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Now Accepting New Patients
Dr. Ryan accepts 14 insurance carriers
  • Aetna
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of Florida
    BlueDental Choice
  • Cigna
    Cigna PPO
    Open Access Plus
  • Commercial Insurance Company
  • Coventry Health Care
  • EmblemHealth
    Emblem Health
  • Golden Rule
  • Humana
    Choice Care PPO
    Commercial PPO
    Humana PPO
    Medicare Supplement - Plan A
    Medicare Supplement - Plan B
    Medicare Supplement - Plan C
    Medicare Supplement - Plan F
    Medicare Supplement - Plan K
    Medicare Supplement - Plan L
    Medicare Supplement - Plan N
  • Mail Handlers Benefit Plan (MHBP)
  • Medical Mutual of Ohio
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • Principal Life
  • UnitedHealthCare
    Choice Plus POS
    Options PPO
    United Healthcare

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Ryan has admitting privileges

Florida Hospital - Altamonte
601 E Altamonte Dr
Altamonte Springs, FL 32701
View Hospital Profile
South Seminole Hospital
555 W State Road 434
Longwood, FL 32750
View Hospital Profile