Maureen M Mercier, ACNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

2015042849 Issued in MO

Practice address

1 Barnes Jewish Hospital PLZ
Div Surg Transplant
Saint Louis, MO 63110-1003

Phone

(314) 747-9889

Fax

(877) 438-4530

NPI assigned

Jan 9, 2016

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Washington UniversityGroup PAC ID 9830008770, shared by 49 NPIs, 2,968 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• SSM Health Care St Louis

  • Emergency Medicine Physician
  • Fenton, MO
  • NPI 1275586174
  Medicare reassignment NPD
• Washington University

  • Emergency Care Clinic/Center
  • Saint Louis, MO
  • NPI 1104866656
  Medicare reassignment NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1134169568
  Medicare reassignment NPD
• SSM Cardinal Glennon Childrens Hospital

  • Pediatrics Physician
  • O Fallon, IL
  • NPI 1174577670

  MO

  Medicare reassignment NPD
• SSM Cardinal Glennon Children'S Hospital

  • Pediatrics Physician
  • Warrenton, MO
  • NPI 1962573212
  NPD
• SSM Cardinal Glennon Childrens Hospital

  • Pediatrics Physician
  • Saint Louis, MO
  • NPI 1073568226
  NPD
• SSM Health Care St. Louis

  • Cardiovascular Disease Physician
  • Bridgeton, MO
  • NPI 1376598599
  NPD
• Ozarks Medical Center

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  NPD (past)
• SSM Medical Group Inc.

  • Durable Medical Equipment & Medical Supplies
  • Fenton, MO
  • NPI 1124579966
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1452297600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1396101135",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-747-9889",
            "fax_number": "877-438-4530"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "address_2": "DIV SURG TRANSPLANT",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "314-747-9889",
            "fax_number": "877-438-4530"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERCIER",
        "first_name": "MAUREEN",
        "middle_name": "M",
        "name_prefix": "Ms.",
        "credential": "ACNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-01-09",
        "last_updated": "2025-04-17",
        "certification_date": "2021-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MO",
            "license": "2015042849",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "420028461",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "1 Barnes Jewish Hospital Plz",
            "address_2": "Div Surg Transplant",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101003",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Ashley Mercer, AGNP-C
• Kelsey Mercer, CPNP-PC
• Rebekah Mercer, MA, LPC
• Assaad Merchak, M.D.
• Arjun Gaurang Merchant, MD
• Philippe Joseph Arthur Mercier, M.D., PH.D.
• Mercy Aco Provider Services LLC
• Mercy Arch Hematology Oncology Group Inc.
• Mercy Behavioral Health, LLC
• Mercy Cardiology LLC

• Nurse Practitioner in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.