Elizabeth R McIlwain, LMSW

Primary specialty

Social WorkerTaxonomy code 104100000X

License

114347 Issued in NY

Practice address

911 Stowell St
Elmira, NY 14901-1428

Phone

(607) 737-5215

NPI assigned

Oct 12, 2021

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

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

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.

• Casa-Trinity, Inc.

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Geneseo, NY
  • NPI 1023054376
  NPD (past)
• Casa-Trinity, Inc.

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Elmira, NY
  • NPI 1508272238
  NPD (past)

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

{
    "created_epoch": "1633996800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1912669573",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4612 MILLENNIUM DR",
            "city": "GENESEO",
            "state": "NY",
            "postal_code": "144541197"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "911 STOWELL ST",
            "city": "ELMIRA",
            "state": "NY",
            "postal_code": "149011428",
            "telephone_number": "607-737-5215"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "904 E Church St Ste B",
            "address_purpose": "LOCATION",
            "city": "Elmira",
            "state": "NY",
            "postal_code": "149012842",
            "country_code": "US",
            "telephone_number": "607-737-5215",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCILWAIN",
        "first_name": "ELIZABETH",
        "middle_name": "R",
        "credential": "LMSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-10-12",
        "last_updated": "2026-07-13",
        "certification_date": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NY",
            "license": "114347",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Megan McGinnis
• Hannah McGrath, OTD, OTR/L
• Debra McGurgan
• Harry Dale McHenry II, DO
• Ellen Margaret McHugh, MD
• Stephanie Michele McIlwain
• Douglas Denton McKane, M.D.
• Oliver Alderman McKeithan IV, RPH
• Suzanne McKendrick
• Georgianna E McKenzie

• Social Worker in Elmira, NY
• Providers in Elmira, NY by specialty
• Social Worker in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.