Erika L Demarche, PMHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

40 401703 Issued in NY

Practice address

4746 Lynnville Way Ofc
Clay, NY 13041-8990

Phone

(315) 225-4902

NPI assigned

Sep 26, 2007

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

Other names 1

• Erika L Hirschey Former name

Medicare fee-for-service enrollment

Enrolled in NY

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, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Madison CountyGroup PAC ID 2365335957, 11 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: erika.demarche@mcmh.medentdirect.com
• Direct secure messaging: edemarche@hiemail.healtheconnections.org

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.

• Madison County

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Wampsville, NY
  • NPI 1689780546
  Medicare reassignment Care Compare group NPD
• Psychiatry Faculty Practice, Inc.

  • Psychiatry Physician
  • Syracuse, NY
  • NPI 1881084820
  Medicare reassignment NPD

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

{
    "created_epoch": "1190764800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788307200000",
    "number": "1902093677",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4746 LYNNVILLE WAY",
            "city": "CLAY",
            "state": "NY",
            "postal_code": "130418990",
            "telephone_number": "315-225-4902"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4746 LYNNVILLE WAY OFC",
            "city": "CLAY",
            "state": "NY",
            "postal_code": "130418990",
            "telephone_number": "315-225-4902"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEMARCHE",
        "first_name": "ERIKA",
        "middle_name": "L",
        "credential": "PMHNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-09-26",
        "last_updated": "2026-09-02",
        "certification_date": "2026-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "NY",
            "license": "40 401703",
            "primary": true
        },
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ERIKA",
            "last_name": "HIRSCHEY",
            "middle_name": "L",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Nicki Delvecchio, RD, CDN
• Rebecca Lenore Domroe, LCSW
• Tina M Drake, RN
• Heather Lynne Dufresne, LMSW
• Evergreen Mental Health & Assessment, LLC
• Donna Louise Fifield, LICENSED PRACTICAL N

• Psychiatric/Mental Health Nurse Practitioner in Clay, NY
• Providers in Clay, NY by specialty
• Psychiatric/Mental Health Nurse Practitioner in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 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.
• 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.