Ellen Edith Mouser, PMHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

2013037707 Issued in MO

Practice address

4121 Union Rd Ste 201
Saint Louis, MO 63129-1070

Phone

(314) 930-3520

Fax

(314) 930-3675

NPI assigned

Jan 15, 2014

Last updated

Oct 22, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

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

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ellen.mouser.2@28492.direct.athenahealth.com

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

• Chestnut Health Systems Inc

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Bloomington, IL
  • NPI 1366431686
  Medicare reassignment NPD
• Jersey Community Hospital

  • Personal Emergency Response Attendant
  • Jerseyville, IL
  • NPI 1780609925
  Medicare reassignment NPD
• Chestnut Health Systems Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Wood River, IL
  • NPI 1235941311
  NPD
• Jersey Community Hospital

  • Rural Health Clinic/Center
  • Jerseyville, IL
  • NPI 1700423696
  NPD
• Lakeside Behavioral Health, LLC

  • Psychiatry Physician
  • Saint Louis, MO
  • NPI 1093269003
  NPD (past)

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

{
    "created_epoch": "1389744000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792627200000",
    "number": "1003238668",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4121 UNION RD STE 201",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631291070"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4121 UNION RD STE 201",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631291070",
            "telephone_number": "314-930-3520",
            "fax_number": "314-930-3675"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "852 Cambridge Blvd Ste 300",
            "address_purpose": "LOCATION",
            "city": "O Fallon",
            "state": "IL",
            "postal_code": "622694010",
            "country_code": "US",
            "telephone_number": "314-930-3520",
            "fax_number": "314-930-3675",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MOUSER",
        "first_name": "ELLEN",
        "middle_name": "EDITH",
        "name_prefix": "Ms.",
        "credential": "PMHNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-01-15",
        "last_updated": "2026-10-22",
        "certification_date": "2026-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "MO",
            "license": "2013037707",
            "primary": true
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "IL",
            "license": "277006037",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mound City Inpatient Services, LLC
• Alexis Lea Mount, FNP-C
• Lauren Elizabeth Mountjoy, NP
• Wassim Mourad, MD, MHCM
• Mina Salah Mousa, MD
• Omar Moussa Pasha, MD
• Isabelle Mousseau, EDS
• Pamela R. Moussette, LCSW
• Rebecca Ann Mowen, LCSW
• Laura Leigh Alexandra Mowery

• Psychiatric/Mental Health Nurse Practitioner in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Psychiatric/Mental Health Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 22, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.