David Keith Haas

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

SP019972 Issued in PA

Practice address

802 New Holland Ave Ste 100
Lancaster, PA 17602-2288

Phone

(717) 560-3782

Fax

(717) 560-3787

NPI assigned

Jan 1, 2022

Sex

Male

Sole proprietor

Yes

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)

Enrolled

Credentials

Nurse Practitioner

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

{
    "created_epoch": "1640995200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788652800000",
    "number": "1962163063",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12 DARE LN",
            "city": "POTTSTOWN",
            "state": "PA",
            "postal_code": "194656601",
            "telephone_number": "484-432-6209"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "802 NEW HOLLAND AVE STE 100",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176022288",
            "telephone_number": "717-560-3782",
            "fax_number": "717-560-3787"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAAS",
        "first_name": "DAVID",
        "middle_name": "KEITH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-01-01",
        "last_updated": "2026-09-06",
        "certification_date": "2022-01-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "PA",
            "license": "SP019972",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David E Guyer, MD
• Gary John Gydush, OD
• H.E.a.R., Inc.
• H.S.a. Counseling, Inc.
• H2 Zero LLC
• Sarah Haas, PHD
• Melvin Brubaker Habecker, D.O.
• Alyssa Marie Hachan-Berry, PA-C
• Linda Hachey, RPH
• Brittney Ann Hacken, MD

• Psychiatric/Mental Health Nurse Practitioner in Lancaster, PA
• Providers in Lancaster, PA by specialty
• Psychiatric/Mental Health Nurse Practitioner in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 6, 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.