Philippe J. Mercier
Expertise in
8
conditions

Dr. Philippe J. Mercier

General Surgery | Neurosurgery
1225 S. Grand Blvd., Second Level, 
St. Louis, MO 
Accepting New Patients
Offers Telehealth
Expertise in
8
conditions
1225 S. Grand Blvd., Second Level, 
St. Louis, MO 

Overview

Dr. Philippe Mercier is a neurosurgeon with expertise in: epilepsy surgery; neuro-oncology; trauma; spine surgery; pediatric neurosurgery; pain surgery; hydrocephalus; and spasticity surgery. He provides comprehensive care using the latest medical advancements, including image-guided stereotactic surgery and endoscopic cranial surgery. He also performs minimally invasive spine surgery. Dr. Mercier is interested in research to develop a model of glioblastoma invasion to advance pediatric and adult treatment of severe head injury. He is an assistant professor in the Department of Surgery, Division of Neurosurgery at Saint Louis University School of Medicine. Dr. Mercier is a member of the American Association of Neurosurgery, the Congress of Neurological Surgery, the Canadian Federation of Neurological Surgery, the American Epilepsy Society, and the International Society for Pediatric Neurosurgery. He is a native of Canada.

Dr. Mercier is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Pica, Subdural Hematoma, Hydrocephalus, Microvascular Decompression, and Awake Craniotomy.

Dr. Mercier is board certified in Missouri State Board Of Registration , Royal College Of Physicians And Surgeons Of Canada, Drug Enforcement Administration , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Illinois Department Of Financial & Professional Regulation . He is actively involved in clinical research, co-authoring 75 peer reviewed articles and participating in 1 clinical trial. Dr. Mercier is currently accepting new patients.

Specialties

General Surgery
Neurosurgery

Licenses

Neurological Surgery in MO

Board Certifications

Missouri State Board Of Registration
Royal College Of Physicians And Surgeons Of Canada
Drug Enforcement Administration
Missouri Dept Of Health/Narcotics&Dangerous Drugs
Illinois Department Of Financial & Professional Regulation

Fellowships

University of Tennessee - Memphis

Hospital Affiliations

Ssm Health St Mary's Hospital - St Louis
Good Samaritan Regional Hlth Center
Ssm Health Saint Louis University Hospital
Saint Francis Medical Center
SSM Health Cardinal Glennon Children's Hospital
SSM Health DePaul Hospital - St. Louis
SSM Health Saint Louis University Hospital
SSM Health St. Clare Hospital - Fenton
SSM Health St. Mary's Hospital - St. Louis

Languages Spoken

English
French

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Celtic
  • HMO
  • INSURANCE PLAN
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Dean Health
  • EPO
  • HMO
  • POS
  • PPO
Essence Healthcare
  • INSURANCE PLAN
  • MEDICARE MAPD
Health Alliance
  • EPO
  • HMO
  • POS
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Medica
  • EPO
  • HMO
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 12 Less Insurance Carriers -

Locations

SLUCare Physician Group
1225 S. Grand Blvd., Second Level, St. Louis, MO 63104

Additional Areas of Focus

Dr. Mercier has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Neurofibromatosis Type 1 (NF1)
Hydrocephalus

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

1 Clinical Trials

In Vivo and ex Vivo Validation of MR Tractography of Brain White Matter Tracts - FIBRATLAS II-III
In Vivo and ex Vivo Validation of MR Tractography of Brain White Matter Tracts - FIBRATLAS II-III
Enrollment Status: Completed
Publish Date: December 30, 2025
Intervention Type: Device
Study Phase: Not Applicable

75 Total Publications

The impact of morbid obesity and metabolic syndrome in elective spine surgery outcomes: A systematic review.
The impact of morbid obesity and metabolic syndrome in elective spine surgery outcomes: A systematic review.
Journal: North American Spine Society journal
Published: March 16, 2026
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Frequently Asked Questions about Dr. Philippe J. Mercier

How do I make an appointment with Dr. Philippe J. Mercier?

You can book an appointment with Dr. Philippe J. Mercier by calling their office at 314-617-3420. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Philippe J. Mercier a top-rated expert for Pica?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Philippe J. Mercier is classified as an Advanced expert for Pica, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Philippe J. Mercier specialize in?

While Dr. Philippe J. Mercier is a General Surgery, they have specific expertise in Pica, Subdural Hematoma, and Hydrocephalus. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within General Surgery.

Does Dr. Philippe J. Mercier participate in research or clinical trials?

Yes. Dr. Philippe J. Mercier has published 75 articles and abstracts on conditions like Pica. You can view a list of Dr. Philippe J. Mercier's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Philippe J. Mercier accept my insurance?

Dr. Philippe J. Mercier accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 314-617-3420 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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