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
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Geraldine A. Ryan as in-network for the following 2026 plans.
Health plans
Ambetter Health
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Ambetter Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete Gold | EPO · Gold | Preferred | Not accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Not accepting new patients |
| Complete Silver | EPO · Silver | Preferred | Not accepting new patients |
| Complete Silver + Vision + Adult Dental | EPO · Silver | Preferred | Not accepting new patients |
| Elite Bronze | EPO · Expanded Bronze | Preferred | Not accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Not accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Not accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Not accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Not accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Not accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Not accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Not accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Not accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Not accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Not accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Not accepting new patients |
Anthem Blue Cross and Blue Shield
Network data as of Mar 26, 2026, as reported by the insurer.
Show all 10 plans from Anthem Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Anthem Bronze Pathway 10150 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Bronze | Participating | Accepting new patients at some locations |
| Anthem Bronze Pathway 6900 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Accepting new patients at some locations |
| Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Accepting new patients at some locations |
| Anthem Catastrophic Pathway (+ Incentives) | EPO · Catastrophic | Participating | Accepting new patients at some locations |
| Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Gold | Participating | Accepting new patients at some locations |
| Anthem Heart Healthy Bronze Pathway 4900 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Accepting new patients at some locations |
| Anthem Heart Healthy Silver Pathway 3100 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
| Anthem Silver Pathway 5350 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
| Anthem Silver Pathway 6000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
| Anthem Silver Pathway 7200 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Accepting new patients at some locations |
Medica
Network data as of Jul 13, 2026, as reported by the insurer.
Show all 9 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Balance by Medica Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Balance by Medica Bronze Premier | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Balance by Medica Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Balance by Medica Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Balance by Medica Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Balance by Medica Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Balance by Medica Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Balance by Medica Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Balance by Medica Silver Standard | EPO · Silver | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential (No Referrals) | EPO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard+ (Dental + Vision, No Referrals) | EPO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | EPO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard+ (Dental + Vision, No Referrals) | EPO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Geraldine A. Ryan is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
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 Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, 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
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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 Ambetter Health?
Yes, Dr. Geraldine A. Ryan is listed in-network for Ambetter Health through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
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.