Dr. Robert F. Onder
- Gender: Male
- Experience: 34 years
- Graduated from: Washington University School Of Medicine
- Graduation year: 1987
- Sole propriator: Yes
- NPI: 1164533295
Dr. Robert F. Onder M.D.
Allergist and Immunologist
He is located at 711 Old Ballas Road Suite 100 in Saint Louis, MO 63141. Can help patients with the following: Chronic Rhinitis, Common Cold, Contact Dermatitis, Diarrhea, Influenza, Obesity. His National Provider Identifier (NPI) number is 1164533295. Appointment can be made via the phone number (314) 569-0510. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Robert F. Onder, being an allergist and immunologist, 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. Robert F. Onder.
- Abdominal Pain
- Acute Pain
- Allergic Reaction
- Allergies
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Celiac Disease
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Chronic Rhinitis
- Common Cold
- Constipation
- Contact Dermatitis
- Cystitis
- Diarrhea
- Edema
- Eosinophilic Esophagitis
- Eye Allergy
- Fever
- Food Allergies
- Food Allergy
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Hay Fever
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Lactose Intolerance
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peanut Allergy
- Peptic Ulcer
- Pink Eye
- Plant Contact Allergy
- Prescription Refill
- Sinusitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Robert F. Onder
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Robert F. Onder 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 | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Complete Silver | EPO · Silver | Preferred | Accepting new patients |
| Complete Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Elite Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
Medica
Network data as of Aug 13, 2026, as reported by the insurer.
Show all 9 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Medica with SSM Health Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with SSM Health Bronze Share | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with SSM Health Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with SSM Health Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Medica with SSM Health Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Medica with SSM Health Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Medica with SSM Health Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Medica with SSM Health Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Medica with SSM Health 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. Robert F. Onder 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. Robert F. Onder is enrolled to bill Medicare as a Practitioner - Allergy/immunology (also registered under: Practitioner - Internal Medicine) .
Bills through: Allergy And Asthma Consultants, Pc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Teva Pharmaceuticals | $2832 |
| AstraZeneca | $2667 |
| Pfizer | $1500 |
Other
| Travel and Lodging | $4429 |
| Food and Beverage | $2475 |
| Promotional Speaking or Service | $1500 |
| Other | $500 |
Studies
WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1987Additional Specialities
- Internist
Looking for more Allergist and Immunologists?
Out of the 10 allergist and immunologists in this region, here are 10 randomly selected ones for you to explore.
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- Address: Ste 129 456 North New Ballas Road Saint Louis, 63141, MO
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- Gender: Female
- Address: Div Im Allergy And Immunology, Ste 2300 5201 Mid America Plaza Saint Louis, 63129, MO
- Gender: Female
- Address: Suite 129 456 North New Ballas Road Saint Louis, 63141, MO
- Gender: Female
- Address: 4800 Mexico Road Suite 101 Saint Peters, 63376, MO
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- Address: 969 North Mason Road Suite 240 Saint Louis, 63141, MO
- Gender: Female
- Address: 425 North New Ballas Road Suite 203 Saint Louis, 63141, MO
- Gender: Female
- Address: Div Im Allergy And Immunology, Ste 2300 5201 Mid America Plaza Saint Louis, 63129, MO
Questions & Answers
Does Dr. Robert F. Onder have affiliation with practices?
Dr. Robert F. Onder is affiliated with Midwest Institute for Addiction.
What conditions does Dr. Robert F. Onder treat?
Dr. Robert F. Onder provides treatment for Chronic Rhinitis, Common Cold, Contact Dermatitis, Diarrhea, Influenza, Obesity. For the full list see this list.
Does Dr. Robert F. Onder accept patients with Ambetter Health?
Yes, Dr. Robert F. Onder is listed in-network for Ambetter Health through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Robert F. Onder?
Dr. Robert F. Onder's office is located at 711 Old Ballas Road Suite 100 in Saint Louis, MO 63141.
Has Dr. Robert F. Onder affiliation with hospitals?
Dr. Robert F. Onder is affiliated with MERCY HOSPITAL ST LOUIS.