Dr. Margaret Brennan
- Gender: Female
- Sole propriator: No
- NPI: 1164048500
Dr. Margaret Brennan MD
Family Physician
She is located at 9180 West Florissant Avenue in Saint Louis, MO 63136. Can help patients with the following: Autism, Breastfeeding and Lactation, Fever, General Care, Osteoarthritis (OA), Prenatal Care. Her National Provider Identifier (NPI) number is 1164048500. Appointment can be made via the phone number (314) 372-3420.
Conditions treated
Dr. Margaret Brennan, 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. Margaret Brennan.
- Abdominal Pain
- Aging In Place
- Anxiety
- Arthritis
- Asthma
- Autism
- Birth Control Counseling
- Breastfeeding and Lactation
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Diabetes
- Fever
- General Care
- Headache
- Heart Disease
- High Blood Pressure
- Hyperlipidemia
- Hypothyroidism
- Infant Care
- Influenza
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Pregnancy
- Prenatal Care
- Prescription Refill
- Thyroid Disease
- Women's Health
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Margaret Brennan 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 |
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 | Not accepting new patients |
| Anthem Bronze Pathway 6900 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Not accepting new patients |
| Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Not accepting new patients |
| Anthem Catastrophic Pathway (+ Incentives) | EPO · Catastrophic | Participating | Not accepting new patients |
| Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Gold | Participating | Not accepting new patients |
| Anthem Heart Healthy Bronze Pathway 4900 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Expanded Bronze | Participating | Not accepting new patients |
| Anthem Heart Healthy Silver Pathway 3100 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Not accepting new patients |
| Anthem Silver Pathway 5350 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Not accepting new patients |
| Anthem Silver Pathway 6000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Not accepting new patients |
| Anthem Silver Pathway 7200 ($0 Virtual PCP + $0 Select Drugs + Incentives) | EPO · Silver | Participating | Not accepting new patients |
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. Margaret Brennan 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. Margaret Brennan 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 says nothing about other insurance, quality, outcomes, or board certification.
Looking for more Family Physicians?
Out of the 12 family physicians in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 6917 West Florissant Avenue Saint Louis, 63136, MO
- Gender: Female
- Address: Ste 406 11125 Dunn Road Saint Louis, 63136, MO
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- Address: Ste 102 North 11155 Dunn Road St Louis, 63136, MO
- Gender: Female
- Address: 3444 Mckelvey Road Bridgeton, 63044, MO
- Gender: Male
- Address: 11133 Dunn Road Saint Louis, 63136, MO
- Gender: Male
- Address: 11133 Dunn Road Saint Louis, 63136, MO
- Gender: Male
- Address: Suite 103 2880 Netherton Drive Saint Louis, 63136, MO
- Gender: Male
- Address: Suite 201 11125 Dunn Road Saint Louis, 63136, MO
- Gender: Female
- Address: Ste 2427 11133 Dunn Road Saint Louis, 63136, MO
- Gender: Male
- Address: Ste. 406 11125 Dunn Road Saint Louis, 63136, MO
Questions & Answers
What conditions does Dr. Margaret Brennan treat?
Dr. Margaret Brennan provides treatment for Autism, Breastfeeding and Lactation, Fever, General Care, Osteoarthritis (OA), Prenatal Care. For the full list see this list.
Where can you meet with Dr. Margaret Brennan?
Dr. Margaret Brennan's office is located at 9180 West Florissant Avenue in Saint Louis, MO 63136.
Does Dr. Margaret Brennan accept insurance?
Dr. Margaret Brennan is listed in-network for 48 ACA Marketplace (Obamacare/HealthCare.gov) plans from Ambetter Health, Anthem Blue Cross and Blue Shield, Medica, UnitedHealthcare. See the Marketplace plans section for details.