Dr. Ann M. Hennessey
- Gender: Female
- Sole propriator: No
- NPI: 1053471581
Dr. Ann M. Hennessey M.D.
Pediatrician
She is located at 621 South New Ballas Road Suite 1001B in Saint Louis, MO 63141. Can help patients with the following: Anencephaly, Developmental Delays, Fragile X Syndrome (FXS), Head Lice, Speech Disorders, Sudden Infant Death Syndrome (SIDS). Her National Provider Identifier (NPI) number is 1053471581. Appointment can be made via the phone number (314) 872-8752. She is affiliated with 1 practices.
Conditions treated
Dr. Ann Marie Hennessey, being an pediatrician, 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. Ann M. Hennessey.
- Abdominal Pain
- Allergic Reaction
- Anemia
- Anencephaly
- Asthma
- Autism
- Bee and Wasp Stings
- Birth Defects
- Bronchitis
- Cerebral Palsy (CP)
- Childhood Behavioral and Emotional Disorders
- Childhood Obesity
- Chronic Cough
- Cleft Palate and Cleft Lip
- Colic
- Common Cold
- Croup
- Developmental Delays
- Down Syndrome
- Dyslexia
- Eczema
- Edwards Syndrome
- Enuresis
- Fetal Alcohol Syndrome (FAS)
- Fever
- Food Poisoning
- Fragile X Syndrome (FXS)
- General Care
- Hay Fever
- Head Lice
- Headache
- Hives
- Infant Care
- Influenza
- Jaundice
- Kawasaki Disease
- Learning Disability
- Migraine
- Muscular Dystrophy
- Nausea and Vomiting
- Noonan Syndrome
- Parenting
- Pervasive Developmental Disorders (PDD)
- Phenylketonuria (PKU)
- Pinworm Infection
- Prescription Refill
- Reye Syndrome
- Rickets
- Sinusitis
- Skin Rash
- Sore Throat
- Speech Disorders
- Stuttering
- Sudden Infant Death Syndrome (SIDS)
- Tourette Syndrome
- Turner Syndrome
- Upper Respiratory Infection (URI)
- Urinary Tract Infection (UTI)
- Williams Syndrome
- Wilson-Turner Syndrome
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Ann M. Hennessey as in-network for the following 2026 plans.
Health plans
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 |
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. Ann M. Hennessey 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. Ann M. Hennessey is enrolled to bill Medicare as a Practitioner - Pediatric Medicine .
Bills through: Mercy Hospitals 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.
Payments received
Drug payment
| Pfizer | $45 |
| Shire North American Group | $40 |
| Tris Pharma | $33 |
Other
| Food and Beverage | $257 |
Looking for more Pediatricians?
Out of the 73 pediatricians in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: Suite 281-A 621 South New Ballas Road Saint Louis, 63141, MO
- Gender: Male
- Address: 615 South New Ballas Road Floor Y-G230 Saint Louis, 63141, MO
- Gender: Male
- Address: Suite 300 522 North New Ballas Road Saint Louis, 63141, MO
- Gender: Male
- Address: # 2016 B 621 South New Ballas Road Saint Louis, 63141, MO
- Gender: Male
- Address: Suite 107-W 777 South New Ballas Road Saint Louis, 63141, MO
- Gender: Female
- Address: 621 South New Ballas Road Saint Louis, 63141, MO
- Gender: Female
- Address: Ste 205 845 North New Ballas Court Saint Louis, 63141, MO
- Gender: Female
- Address: Ste 304 456 North New Ballas Road Saint Louis, 63141, MO
- Gender: Male
- Address: Suite 6006B 621 South New Ballas Road Saint Louis, 63141, MO
- Gender: Female
- Address: 621 South New Ballas Road Suite 6009B Saint Louis, 63141, MO
Questions & Answers
Does Dr. Ann Marie Hennessey accept insurance?
Dr. Ann Marie Hennessey is listed in-network for 19 ACA Marketplace (Obamacare/HealthCare.gov) plans from Anthem Blue Cross and Blue Shield, Medica. See the Marketplace plans section for details.
Where can you meet with Dr. Ann Marie Hennessey?
Dr. Ann Marie Hennessey's office is located at 621 South New Ballas Road Suite 1001B in Saint Louis, MO 63141.
What conditions does Dr. Ann Marie Hennessey treat?
Dr. Ann Marie Hennessey provides treatment for Anencephaly, Developmental Delays, Fragile X Syndrome (FXS), Head Lice, Speech Disorders, Sudden Infant Death Syndrome (SIDS). For the full list see this list.
Does Dr. Ann Marie Hennessey have affiliation with practices?
Dr. Ann Marie Hennessey is affiliated with Mercy Clinic Children's Hospitalists - St. Louis.