Dr. Geraldine A. Ryan
- Gender: Female
- Experience: 33 years
- Graduated from: Saint Louis University School Of Medicine
- Graduation year: 1988
- Sole propriator: No
- NPI: 1689640609
Dr. Geraldine A. Ryan M.D.
Family Physician
She is located at 9426 Phoenix Village Parkway in O Fallon, MO 63368. Can help patients with the following: Autism, Breastfeeding and Lactation, Cleft Palate and Cleft Lip, General Care, Skin Rash, Stuttering. Her National Provider Identifier (NPI) number is 1689640609. Appointment can be made via the phone number (636) 561-5999. She is affiliated with 1 hospitals.
Conditions treated
Dr. Geraldine A. Ryan, being an family physician, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Geraldine A. Ryan.
- Abdominal Pain
- Acute Pain
- Aging In Place
- Allergic Reaction
- Anemia
- Anencephaly
- Anxiety
- Arthritis
- Asthma
- Atherosclerosis
- Autism
- Bee and Wasp Stings
- Birth Control Counseling
- Birth Defects
- Bladder Control
- Breastfeeding and Lactation
- Bronchitis
- Cerebral Palsy (CP)
- Chest Pain
- Childhood Behavioral and Emotional Disorders
- Childhood Obesity
- Cholecystitis
- Chronic Cough
- Chronic Obstructive Pulmonary Disease (COPD)
- Cleft Palate and Cleft Lip
- Colic
- Common Cold
- Constipation
- Croup
- Cystitis
- Developmental Delays
- Diabetes
- Diarrhea
- Down Syndrome
- Dyslexia
- Eczema
- Edema
- Edwards Syndrome
- Enuresis
- Fetal Alcohol Syndrome (FAS)
- Fever
- Food Poisoning
- Fragile X Syndrome (FXS)
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Hay Fever
- Head Lice
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hives
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Hypothyroidism
- Infant Care
- Influenza
- Inguinal Hernia
- Jaundice
- Kawasaki Disease
- Learning Disability
- Migraine
- Mold Exposure
- Muscular Dystrophy
- Nausea and Vomiting
- Noonan Syndrome
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Parenting
- Peptic Ulcer
- Pervasive Developmental Disorders (PDD)
- Phenylketonuria (PKU)
- Pinworm Infection
- Pregnancy
- Prenatal Care
- Prescription Refill
- Reye Syndrome
- Rickets
- Sinusitis
- Skin Rash
- Sore Throat
- Speech Disorders
- Stuttering
- Sudden Infant Death Syndrome (SIDS)
- Thyroid Disease
- Tourette Syndrome
- Turner Syndrome
- Upper Respiratory Infection (URI)
- Urethritis
- Urinary Tract Infection (UTI)
- Williams Syndrome
- Wilson-Turner Syndrome
- Women's Health
Procedures Performed by Dr. Geraldine A. Ryan
Insurances Accepted by Dr. Geraldine A. Ryan
- Medicare
Medicare Enrollment
Dr. Geraldine A. Ryan is enrolled to bill Medicare as a Practitioner - Family Practice .
Bills through: Mercy Clinic East Communities
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Pfizer | $257 |
| Novartis | $255 |
| Janssen | $239 |
Other
| Food and Beverage | $2173 |
Studies
SAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1988Additional Specialities
- Internist
- Pediatrician
Looking for more Family Physicians?
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- Gender: Female
- Address: 9426 Phoenix Village Parkway O Fallon, 63368, MO
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- Address: 2630 Highway K O Fallon, 63368, MO
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- Address: 201 Bjc Saint Peters Drive Suite 200 Saint Peters, 63376, MO
Questions & Answers
Where can you meet with Dr. Geraldine A. Ryan?
Dr. Geraldine A. Ryan's office is located at 9426 Phoenix Village Parkway in O Fallon, MO 63368.
Does Dr. Geraldine A. Ryan accept patients with Medicare?
Yes, Dr. Geraldine A. Ryan accepts patients with Medicare.
Has Dr. Geraldine A. Ryan affiliation with hospitals?
Dr. Geraldine A. Ryan is affiliated with MERCY HOSPITAL ST LOUIS.
What conditions does Dr. Geraldine A. Ryan treat?
Dr. Geraldine A. Ryan provides treatment for Autism, Breastfeeding and Lactation, Cleft Palate and Cleft Lip, General Care, Skin Rash, Stuttering. For the full list see this list.