Individual provider Active NPI

Alyson Segrid McMannis

  • Psychiatric/Mental Health Registered Nurse
  • Frederick, MD
National Provider Identifier
1972433407
Registry record updated May 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatric/Mental Health Registered NurseTaxonomy code 163WP0808X
License
R214499 Issued in MD
Practice address
230 W Patrick St
Frederick, MD 21701-6945
Phone
(301) 662-0099
NPI assigned
May 19, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 19, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatric/Mental Health Registered Nurse 163WP0808X R214499 MD Primary

Addresses

Primary practice location

230 W Patrick St
Frederick, MD 21701-6945

Mailing address

237 Philadelphia Ave
Waynesboro, PA 17268-2617
Phone (240) 672-3470

Other names 1

  • Alyson Segrid Dignan Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
R214499MDMDPsychiatric/Mental Health Registered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1779148800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779148800000",
    "number": "1972433407",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "237 PHILADELPHIA AVE",
            "city": "WAYNESBORO",
            "state": "PA",
            "postal_code": "172682617",
            "telephone_number": "240-672-3470",
            "fax_number": "240-672-3470"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "230 W PATRICK ST",
            "city": "FREDERICK",
            "state": "MD",
            "postal_code": "217016945",
            "telephone_number": "301-662-0099"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMANNIS",
        "first_name": "ALYSON",
        "middle_name": "SEGRID",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-05-19",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WP0808X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Psychiatric/Mental Health",
            "state": "MD",
            "license": "R214499",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ALYSON",
            "last_name": "DIGNAN",
            "middle_name": "SEGRID",
            "credential": "DIGNAN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Frederick, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 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.