PHILIPPE JOSEPH ARTHUR MERCIER M.D., PH.D.
NPI 1053710160
Neurological Surgery in Saint Louis, MO
About Philippe Joseph Arthur Mercier M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILIPPE JOSEPH ARTHUR MERCIER M.D., PH.D. (NPI 1053710160) is an individual neurological surgery provider in Saint Louis, Missouri, licensed in Missouri (2015015488) and active in the NPI registry since August 2014. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Regional Hlth Center, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Philippe Joseph Arthur Mercier M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Philippe Mercier reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
Saint Louis, MO 63117
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
Pana, IL 62557
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Hshs Medical Group Inc
- 317 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Regional Hlth Center
Acute Care Hospitals · Mount Vernon, ILSsm St Joseph Health Center
Acute Care Hospitals · Saint Charles, MOSsm St Clare Health Center
Acute Care Hospitals · Fenton, MOSsm Health St Mary's Hospital - St Louis
Acute Care Hospitals · Richmond Heights, MOSsm Health Saint Louis University Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Philippe Mercier's NPI number?
The NPI number for Philippe Mercier is 1053710160. It was assigned to this individual provider in the NPPES registry on August 14, 2014.
Where is Philippe Mercier located?
Philippe Mercier practices at 1201 S Grand Blvd Dept Of, Saint Louis, MO 63104. The listed phone number is (314) 577-8715.
What is Philippe Mercier's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Philippe Mercier enrolled in Medicare?
Yes. Philippe Mercier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Philippe Mercier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philippe Mercier reassigns Medicare benefits to 3 organizations: Ssm Health Care Group (Saint Louis, MO), Ssm Health Care St. Louis (Saint Louis, MO) and Sjl Health Systems Inc (Pana, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Philippe Mercier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Philippe Mercier accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Philippe Mercier as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Philippe Mercier affiliated with any hospitals?
According to CMS data, Philippe Mercier is affiliated with Good Samaritan Regional Hlth Center, Ssm St Joseph Health Center, Ssm St Clare Health Center, Ssm Health St Mary's Hospital - St Louis and Ssm Health Saint Louis University Hospital.
When was this NPI record last updated?
The NPPES record for Philippe Mercier was last updated on January 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.