Summary

Dr. Geraldine Ryan specializes in internal medicine and pediatrics, bringing comprehensive care to patients across all age groups. She earned her medical degree from St. Louis University School of Medicine and has been practicing for 38 years. Dr. Ryan speaks English fluently.

Dr. Ryan is affiliated with Mercy Hospital Saint Louis and practices at Mercy Clinic Primary Care in O'Fallon, Missouri. She treats conditions such as back pain during pregnancy and back pain in children and teens. Her practice also includes care for rhinitis and related allergic conditions. Patients have given Dr. Ryan an average rating of 4.0 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • 4
  • 38 years of experience
  • 20 insurance plans accepted
  • speaks English
  • St Louis University School Of Medicine
  • 8 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Mercy Clinic Primary Care - Winghaven

2223 Technology Dr Ste 40O Fallon, MO 63368
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

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Geraldine A. Ryan
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Geraldine A. RyanDr. Siroth Charnond, MDDr. Michael Albrecht, MDEric Harker
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
3.2 
38 Years of Experience 31 Years of Experience 14 Years of Experience 25 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
O Fallon , MOFLORISSANT , MOLANSING , KSLyons , CO
Med School: St Louis University School Of Medicine Med School: University of Mo-Kansas City Sch of Med, Kansas City Mo Med School: University Of Kansas School Of Medicine Med School: Duke University School Of Medicine
Current Profile
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Insurance Plans Accepted by Geraldine A. Ryan

  • Accepts Medicare
  • Aetna
  • Anthem BlueCross BlueShield
  • Ascension Smart Health
  • Cigna
  • Essence
  • Health Net Federal Services
  • Healthlink
  • Healthy Blue (formerly Missouri Care)
  • HFN Inc.
  • Home State Health
  • Humana
  • Humana Military
  • Live360 (Health Choices Network)
  • Medica
  • MultiPlan/PHCS
  • NHC Advantage
  • PPHP (Provider Partners Health Plan)
  • Sterling Medicare
  • United Healthcare
  • WellCare Medicare Advantage

Medical Specialties

Geraldine A. Ryan has the following 2 specialties

Specialty Expertise

Geraldine A. Ryan has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Internist/pediatrician
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

38 Years Experience

Geraldine A. Ryan holds an expired medical license in the state of Missouri.

Medical License

Medical Doctor with an expired medical license in the state of Missouri that expired in 2026.

Education & Training

Medical School

Graduated from St Louis University School Of Medicine in 1988.

NPI Number

Geraldine A. Ryan's NPI number is 1689640609.

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Frequently Asked Questions

Is Geraldine Ryan accepting new patients?
Geraldine Ryan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Which hospitals is Geraldine Ryan affiliated with?
Geraldine Ryan is affiliated with Mercy Hospital Saint Louis.
Does Geraldine Ryan accept my insurance?
You can see the insurance plans that Geraldine Ryan accepts on their Vitals profile.
Where is Geraldine Ryan's office located?
Geraldine Ryan's office is located at 2223 Technology Dr Ste 40, O Fallon, MO, 63368.
Does Geraldine Ryan accept virtual/telehealth appointments?
Geraldine Ryan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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